@article {4619, title = {Regulating COOH Intermediate via Rationally Constructed Surface-Active Sites of Bi2WO6 for Solar-Driven CO2-to-CO Production}, journal = {Advanced Functional Materials}, volume = {n/a}, year = {2025}, note = {

n/a

}, month = {2025}, pages = {2423751}, publisher = {John Wiley \& Sons, Ltd}, abstract = {

Abstract Solar-driven CO2 reduction holds great promise for sustainable energy, yet the role of atomic active sites in governing intermediate formation and conversion remains poorly understood. Herein, a synergistic strategy using Ni single atoms (SAs) and surface oxygen vacancies (Ov) is reported to regulate the CO2 reduction pathway on the Bi2WO6 photocatalyst. Combining in-situ techniques and theoretical modeling, the reaction mechanism and the structure-activity relationship is elucidated. In-situ X-ray absorption spectroscopy identifies Bi and Ni as active sites, and in-situ diffuse reflectance infrared Fourier transform spectroscopy demonstrates that adsorption of H2O and CO2 readily forms CO32? species on the Ov-rich catalyst. Optimally balancing Ni SAs and Ov lowers the energy barrier for the~formation and dehydration of a key COOH intermediate, leading to favorable CO formation and desorption. Consequently, a superior CO production efficiency of 53.49~{\textmu}mol~g?1 is achieved, surpassing previous reports on Bi2WO6-based catalysts for gas-phase CO2 photoreduction.

}, keywords = {active sites, COOH, Ni single atoms, oxygen vacancies, surface reaction}, isbn = {1616-301X}, url = {https://doi.org/10.1002/adfm.202423751}, author = {Thang, Nguyen Quoc and Sabbah, Amr and Putikam, Raghunath and Huang,Chih-Yang and Lin, Tsai-Yu and Kamal Hussien, Mahmoud and Heng-Liang Wu and Lin, Ming-Chang and Chih-Hao Lee and Kuei-Hsien Chen and Li-Chyong Chen} } @article {4613, title = {Back cover}, journal = {Journal of Materials Chemistry A}, volume = {12}, year = {2024}, note = {

n/a

}, month = {2024}, pages = {32483 - 32484}, publisher = {The Royal Society of Chemistry}, isbn = {2050-7488}, url = {http://dx.doi.org/10.1039/D4TA90226B}, author = {Thang, Nguyen Quoc and Sabbah, Amr and Li-Chyong Chen and Kuei-Hsien Chen and et al} } @article {4598, title = {Constructing B-N-P Bonds in Ultrathin Holey g-C3N4 for Regulating the Local Chemical Environment in Photocatalytic CO2 Reduction to CO}, journal = {Small}, volume = {n/a}, year = {2024}, note = {

n/a

}, month = {2024}, pages = {2400724}, publisher = {John Wiley \& Sons, Ltd}, abstract = {

Abstract The lack of intrinsic active sites for photocatalytic CO2 reduction reaction (CO2RR) and fast recombination rate of charge carriers are the main obstacles to achieving high photocatalytic activity. In this work, a novel phosphorus and boron binary-doped graphitic carbon nitride, highly porous material that exhibits powerful photocatalytic CO2 reduction activity, specifically toward selective CO generation, is disclosed. The coexistence of Lewis-acidic and Lewis-basic sites plays a key role in tuning the electronic structure, promoting charge distribution, extending light-harvesting ability, and promoting dissociation of excitons into active carriers. Porosity and dual dopants create local chemical environments that activate the pyridinic nitrogen atom between the phosphorus and boron atoms on the exposed surface, enabling it to function as an active site for CO2RR. The P?N?B triad is found to lower the activation barrier for reduction of CO2 by stabilizing the COOH reaction intermediate and altering the rate-determining step. As a result, CO yield increased to 22.45~{\textmu}mol~g?1~h?1 under visible light irradiation, which is ≈12 times larger than that of pristine graphitic carbon nitride. This study provides insights into the mechanism of charge carrier dynamics and active site determination, contributing to the understanding of the photocatalytic CO2RR mechanism.

}, keywords = {CO2 reduction, Exciton dissociation, Graphitic carbon nitride, metal-free, Photocatalysis, reaction mechanism}, isbn = {1613-6810}, url = {https://doi.org/10.1002/smll.202400724}, author = {Kamal Hussien, Mahmoud and Sabbah, Amr and Mohammad Qorbani and Putikam, Raghunath and Kholimatussadiah, Septia and Tzou, Der-Lii M. and Hammad Elsayed, Mohamed and Lu, Yu-Jung and Wang, Yen-Yu and Lee, Xing-Hao and Lin, Tsai-Yu and Thang, Nguyen Quoc and Heng-Liang Wu and Haw, Shu-Chih and Wu, Kevin C.-W. and Lin, Ming-Chang and Kuei-Hsien Chen and Li-Chyong Chen} } @article {4615, title = {Tailoring atomically dispersed Fe-induced oxygen vacancies for highly efficient gas-phase photocatalytic CO2 reduction and NO removal with diminished noxious byproducts}, journal = {Journal of Materials Chemistry A}, volume = {12}, year = {2024}, note = {n/a}, month = {2024}, pages = {31847 - 31860}, publisher = {The Royal Society of Chemistry}, abstract = {

Single-atom-supported metal oxides have attracted extensive interest in energy catalysis, offering a promising avenue for mitigating greenhouse gas emissions and environmental pollution. This study presents a facile synthesis of single-atom Fe-modified Bi2WO6 photocatalysts. By carefully tuning the Fe ratios, the 1.5Fe-Bi2WO6 sample demonstrates exceptional photocatalytic efficiency in CO2 to CO reduction (36.78 μmol g-1). Additionally, an outstanding NO removal performance is also achieved through this photocatalyst with an impressively low conversion of toxic NO2 at just 0.37\%. The reaction intermediates and mechanisms governing the photocatalytic reduction of CO2 into CO are elucidated using in situ DRIFTS and in situ XAS techniques. Regarding NO removal, the introduction of Fe single-atoms, along with induced oxygen vacancies, plays a pivotal role in facilitating the transformation of NO and NO2 into nitrate by stabilizing NO and NO2 species. Mechanistic insights into photocatalytic NO oxidation are garnered through scavenger trapping and EPR experiments employing DMPO. This study emphasizes single-atom-supported metal oxide{\textquoteright}s potential in sustainable chemistry and air purification, providing a promising solution for urgent environmental challenges.

}, isbn = {2050-7488}, url = {http://dx.doi.org/10.1039/D4TA05778C}, author = {Thang, Nguyen Quoc and Sabbah, Amr and Huang,Chih-Yang and Phuong, Nguyen Hoang and Lin, Tsai-Yu and Kamal Hussien, Mahmoud and Heng-Liang Wu and Chih-I Wu and Pham, Nguyet N. T. and Viet, Pham Van and Chih-Hao Lee and Li-Chyong Chen and Kuei-Hsien Chen} } @article {4614, title = {Ultra-low lattice thermal conductivity driven high thermoelectric figure of merit in Sb/W co-doped GeTe}, journal = {Journal of Materials Chemistry A}, volume = {12}, year = {2024}, note = {n/a}, month = {2024}, pages = {30892 - 30905}, publisher = {The Royal Society of Chemistry}, abstract = {

High thermoelectric performance is a material challenge associated mainly with the manipulation of lattice dynamics to obtain extrinsic phonon transport routes, which can make the lattice thermal conductivity (κlat) intrinsically low by introducing multiple scattering mechanisms. The present study shows that the lattice-strain-induced phonon scattering resulting from microstructural distortions in GeTe-based compounds can enable ultralow lattice thermal conductivity. The unusual lattice shrinkage, W interstitials, W nanoprecipitates, and heavy elemental mass, in Ge0.85Sb0.1W0.05Te culminate in an ultralow lattice thermal conductivity of \~{}0.2 W m-1 K-1 at 825 K. Microstructural distortions in this Sb/W co-doped GeTe are found to be primarily associated with shorter W{\textendash}Te bonding owing to the anomalous effect of the higher electronegativity of the W atoms. Furthermore, the increased electrical conductivity (σ) resulting from the enhanced vacancy formation caused by W doping and W interstitials synergistically contributes to optimization of the thermoelectric performance (ZT) to \~{}2.93 at 825 K. The thermoelectric efficiency (η) as high as \~{}17\% has been obtained for a single leg in this composition at an operating temperature of 825 K, with an estimated device ZT value of \~{}1.38.

}, isbn = {2050-7488}, url = {http://dx.doi.org/10.1039/D4TA05332J}, author = {Bayikadi, Khasim Saheb and Imam, Safdar and Tee, Wei-Shen and Kavirajan, Sugumaran and Chang, Chiao-Yu and Sabbah, Amr and Fang-Yu Fu and Liu, Ting-Ran and Chiang, Ching-Yu and Shukla, Dinesh and Chien-Ting Wu and Li-Chyong Chen and Chou, Mei-Yin and Kuei-Hsien Chen and Raman Sankar} } @article {4612, title = {Visualization of Anion Vacancy Defect Annihilation in CZTSe Solar Cells by Hydrogen-Assisted Selenization with In Operando X-ray Nanoprobe Studies}, journal = {ACS Applied Materials \& InterfacesACS Applied Materials \& Interfaces}, volume = {16}, year = {2024}, note = {

doi: 10.1021/acsami.4c11127

}, month = {2024}, pages = {64656 - 64663}, publisher = {American Chemical Society}, abstract = {n/a}, isbn = {1944-8244}, url = {https://doi.org/10.1021/acsami.4c11127}, author = {Huang,Chih-Yang and Tseng, Shao-Chin and Wei-ChaoChen and Yin, Gung-Chian and Chen, Bo-Yi and Kuei-Hsien Chen and Li-Chyong Chen and Cheng-YingChen} } @article {4527, title = {Numerous defects induced by exfoliation of boron-doped g-C3N4 towards active sites modulation for highly efficient solar-to-fuel conversion}, journal = {Materials Today Sustainability}, volume = {22}, year = {2023}, note = {

n/a

}, month = {2023}, pages = {100359}, abstract = {

Graphitic carbon nitride (CN) has emerged as a highly promising material in the photocatalysis field. However, its bulk structure suffers from a lack of active sites, limiting its practical application. Herein, a boron-doped CN (BCN) was prepared by a green gas-blowing-assisted thermal polymerization and then subjected to different exfoliation processes in order to delaminate the layered structure and tune the surface-active sites. A thorough comparative study shows that thermal exfoliation creates unsaturated nitrogen sites and induces the formation of interconnected layers that act as an electron diffusion channel for better charge transport. Furthermore, the thermally exfoliated BCN is rich in structural disorders that serve as dissociation defects for photoinduced charge carriers with a low exciton binding energy of 27~meV. Experimental results supported by theoretical calculations show that the nitrogen adjacent to boron is activated by the surrounding surface amino groups and the perforated texture to serve as an active adsorption site towards CO2 and H2O. Consequently, the exfoliated BCN acts as an outstanding bifunctional photocatalyst towards CO2 reduction into CO (40.41~μmol~g-1~h-1) and prominent hydrogen evolution (4740~μmol~g-1~h-1, 12.2\% apparent quantum yield (AQY)).

}, keywords = {CO reduction, Delamination, Exciton dissociation, Graphitic carbon nitride, Hydrogen evolution, Photocatalyst}, isbn = {2589-2347}, url = {https://www.sciencedirect.com/science/article/pii/S2589234723000453}, author = {Kamal Hussien, Mahmoud and Sabbah, Amr and Mohammad Qorbani and Hammad Elsayed, Mohamed and Quadir, Shaham and Putikam Raghunath and Tzou, Der-Lii M. and Haw, Shu-Chih and Chou, Ho-Hsiu and Thang, Nguyen Quoc and M.-C. Lin and Li-Chyong Chen and Kuei-Hsien Chen} } @article {4451, title = {Short- and Long-Range Cation Disorder in (AgxCu1{\textendash}x)2ZnSnSe4 Kesterites}, journal = {Chemistry of Materials}, year = {2022}, note = {

doi: 10.1021/acs.chemmater.2c01489

}, month = {2022}, publisher = {American Chemical Society}, abstract = {

n/a

}, isbn = {0897-4756}, url = {https://doi.org/10.1021/acs.chemmater.2c01489}, author = {Quadir, Shaham and Mohammad Qorbani and Sabbah, Amr and Wu, Tai-Sing and Anbalagan, Aswin kumar and Chen, Wei-Tin and Valiyaveettil, Suneesh Meledath and Thong, Ho-Thi and Wang, Chin-Wei and Cheng-YingChen and Chih-Hao Lee and Kuei-Hsien Chen and Li-Chyong Chen} } @article {https://doi.org/10.1002/smll.202105076, title = {Bandgap Shrinkage and Charge Transfer in 2D Layered SnS2 Doped with V for Photocatalytic Efficiency Improvement}, journal = {Small}, volume = {n/a}, number = {n/a}, year = {2022}, note = {

n/a

}, pages = {2105076}, abstract = {

Abstract Effects of electronic and atomic structures of V-doped 2D layered SnS2 are studied using X-ray spectroscopy for the development of photocatalytic/photovoltaic applications. Extended X-ray absorption fine structure measurements at V K-edge reveal the presence of VO and VS bonds which form the intercalation of tetrahedral OVS sites in the van der Waals (vdW) gap of SnS2 layers. X-ray absorption near-edge structure (XANES) reveals not only valence state of V dopant in SnS2 is ≈4+ but also the charge transfer (CT) from V to ligands, supported by V Lα,β resonant inelastic X-ray scattering. These results suggest V doping produces extra interlayer covalent interactions and additional conducting channels, which increase the electronic conductivity and CT. This gives rapid transport of photo-excited electrons and effective carrier separation in layered SnS2. Additionally, valence-band photoemission spectra and S K-edge XANES indicate that the density of states near/at valence-band maximum is shifted to lower binding energy in V-doped SnS2 compare to pristine SnS2 and exhibits band gap shrinkage. These findings support first-principles density functional theory calculations of the interstitially tetrahedral OVS site intercalated in the vdW gap, highlighting the CT from V to ligands in V-doped SnS2.

}, keywords = {band-gap shrinkage, charge transfer, Density functional theory, resonant inelastic X-ray scattering, V-doped 2D layered SnS2, X-ray absorption}, doi = {https://doi.org/10.1002/smll.202105076}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.202105076}, author = {Shelke, Abhijeet R. and Wang, Hsiao-Tsu and Chiou, Jau-Wern and Indrajit Shown and Sabbah, Amr and Chen, Kuang-Hung and Teng, Shu-Ang and Lin, I-An and Lee, Chi-Cheng and Hsueh, Hung-Chung and Liang, Yu-Hui and Du, Chao-Hung and Yadav, Priyanka L. and Ray, Sekhar C. and Hsieh, Shang-Hsien and Pao, Chih-Wen and Tsai, Huang-Ming and Chen, Chia-Hao and Kuei-Hsien Chen and Li-Chyong Chen and Pong, Way-Faung} } @article {4389, title = {High-efficient photocatalytic degradation of commercial drugs for pharmaceutical wastewater treatment prospects: A case study of Ag/g-C3N4/ZnO nanocomposite materials}, journal = {Chemosphere}, volume = {282}, year = {2021}, note = {

n/a

}, month = {2021}, pages = {130971}, abstract = {

Pharmaceutical drugs{\textquoteright} removal from wastewater by photocatalytic oxidation process is considered as an attractive approach and environmentally friendly solution. This report aims to appraise the practical application potential of Ag/g-C3N4/ZnO nanorods toward the wastewater treatment of the pharmaceutical industry. The catalysts are synthesized by straightforward and environmentally-friendly strategies. Specifically, g-C3N4/ZnO nanorods heterostructure is constructed by a simple self-assembly method, and then Ag nanoparticles are decorated on g-C3N4/ZnO nanorods by a photoreduction route. The results show that three commercial drugs (paracetamol, amoxicillin, and cefalexin) with high concentration (40~mg~L-1) are significantly degraded in the existence of a small dosage of Ag/g-C3N4/ZnO nanorods (0.08~g~L-1). The Ag/g-C3N4/ZnO nanorods photocatalyst exhibits degradation performance of paracetamol higher 3.8, 1.8, 1.3 times than pristine g-C3N4, ZnO nanorods, and g-C3N4/ZnO nanorods. Furthermore, Ag/g-C3N4/ZnO nanorods have an excellent reusability and a chemical stability that achieved paracetamol degradation efficiency of 78\% and remained chemical structure of the photocatalyst after five cycles. In addition, the photocatalytic mechanism explanation and comparison of photocatalytic drugs{\textquoteright} degradation ability have also been discussed in this study.

}, keywords = {Ag/g-CN/ZnO nanorods, Catalyst dose, Commercial pharmaceuticals, Photocatalytic degradation, Visible light}, isbn = {0045-6535}, url = {https://www.sciencedirect.com/science/article/pii/S0045653521014430}, author = {Thang, Nguyen Quoc and Sabbah, Amr and Li-Chyong Chen and Kuei-Hsien Chen and Thi, Cao Minh and Viet, Pham Van} } @article {4386, title = {Impact of Cation Substitution in (AgxCu1-x)2ZnSnSe4 Absorber-Based Solar Cells toward 10\% Efficiency: Experimental and Theoretical Analyses}, journal = {Solar RRLSolar RRL}, volume = {n/a}, year = {2021}, note = {

https://doi.org/10.1002/solr.202100441

}, month = {2021}, pages = {2100441}, publisher = {John Wiley \& Sons, Ltd}, abstract = {

Solar cells based on kesterite Cu2ZnSnSe4 (CZTSe) compounds with earth-abundant elements are highly desirable for the low-cost and high-efficiency production of renewable energy. However, the occurrence of intrinsic defects substantially impairs the photovoltaic properties of CZTSe. Herein, a cation substitution method to control and passivate the defect states in bandgap of kesterite CZTSe by incorporating Ag ions is introduced. Intensity-dependent low-temperature photoluminescence measurements show that Ag incorporation can reduce the density and depth of intrinsic defects in CZTSe. The results reveal that 10\% Ag-alloyed CZTSe provides the shallowest defect states and less nonradiative recombination. It is also confirmed by first-principles calculations that Ag incorporation enables the formation and suppresses the beneficial and detrimental defects, respectively. Based on the theoretical results, the observed subband photoluminescence peaks can be assigned to the intrinsic point and cluster defects. The best power conversion efficiency of 10.2\% is achieved for the 10\% Ag-alloyed CZTSe cell, along with an enhanced open-circuit voltage. These results open up a new avenue for further improving the performances of CZTSe-based device via defect engineering.

}, keywords = {Ag{\textendash}CZTSe, DEFECTS, Kesterite, photoluminescence, photovoltaics}, isbn = {2367-198X}, url = {https://doi.org/10.1002/solr.202100441}, author = {Quadir, Shaham and Mohammad Qorbani and Lai, Ying-Ren and Sabbah, Amr and Thong, Ho{\textendash}Thi and Hayashi, Michitoshi and Chen, Cheng{\textendash}Ying and Chen, Kuei{\textendash}Hsien and Chen, Li{\textendash}Chyong} } @article {4398, title = {Metal-free four-in-one modification of g-C3N4 for superior photocatalytic CO2 reduction and H2 evolution}, journal = {Chemical Engineering Journal}, year = {2021}, note = {

n/a

}, month = {2021}, pages = {132853}, abstract = {

Utilization of g-C3N4 as a single photocatalyst material without combination with other semiconductor remains challenging. Herein, we report a facile green method for synthesizing a metal free modified g-C3N4 photocatalyst. The modification process combines four different strategies in a one-pot thermal reaction: non-metal doping, porosity generation, functionalization with amino groups, and thermal oxidation etching. The as-prepared amino-functionalized ultrathin nanoporous boron-doped g-C3N4 exhibited a high specific surface area of 143.2 m2 g-1 which resulted in abundant adsorption sites for CO2 and water molecules. The surface amino groups act as Lewis basic sites to adsorb acidic CO2 molecules, which can also serve as active sites to facilitate hydrogen generation. Besides, the simultaneous use of ammonium chloride as a dynamic gas bubble template along with thermal oxidation etching efficiently boosts the delamination of the g-C3N4 layers to produce ultrathin sheets; this leads to stronger light{\textendash}matter interactions and efficient charge generation. Consequently, the newly modified g-C3N4 achieved selective gas-phase CO2 reduction into CO with a production yield of 21.95 {\textmu}mol g-1, in the absence of any cocatalyst. Moreover, a high hydrogen generation rate of 3800 {\textmu}mol g-1 h-1 and prominent apparent quantum yield of 10.6\% were recorded. This work opens up a new avenue to explore different rational modifications of g-C3N4 nanosheets for the efficient production of clean energy.

}, keywords = {g-CN, CO reduction, Gas bubble template, Hydrogen generation, Metal-free photocatalyst}, isbn = {1385-8947}, url = {https://www.sciencedirect.com/science/article/pii/S1385894721044284}, author = {Kamal Hussien, Mahmoud and Sabbah, Amr and Mohammad Qorbani and Hammad Elsayed, Mohamed and Putikam Raghunath and Lin, Tsai-Yu and Quadir, Shaham and Wang, Hong-Yi and Heng-Liang Wu and Tzou, Der-Lii M. and Lin, Ming-Chang and Chung, Po-Wen and Chou, Ho-Hsiu and Li-Chyong Chen and Kuei-Hsien Chen} } @article {4352, title = {Nanoscale redox mapping at the MoS2-liquid interface}, volume = {12}, year = {2021}, note = {n/a}, month = {2021}, pages = {1321}, abstract = {

Layered MoS2 is considered as one of the most promising two-dimensional photocatalytic materials for hydrogen evolution and water splitting; however, the electronic structure at the MoS2-liquid interface is so far insufficiently resolved. Measuring and understanding the band offset at the surfaces of MoS2 are crucial for understanding catalytic reactions and to achieve further improvements in performance. Herein, the heterogeneous charge transfer behavior of MoS2 flakes of various layer numbers and sizes is addressed with high spatial resolution in organic solutions using the ferrocene/ferrocenium (Fc/Fc+) redox pair as a probe in near-field scanning electrochemical microscopy, i.e. in close nm probe-sample proximity. Redox mapping reveals an area and layer dependent reactivity for MoS2 with a detailed insight into the local processes as band offset and confinement of the faradaic current obtained. In combination with additional characterization methods, we deduce a band alignment occurring at the liquid-solid interface.

}, isbn = {2041-1723}, url = {https://doi.org/10.1038/s41467-021-21660-z}, author = {He-Yun Du and Yi-Fan Huang and Wong, Deniz and Tseng, Mao-Feng and Yi-Hsin Lee and Chen-Hao Wang and Lin, Cheng-Lan and Hoffmann, Germar and Kuei-Hsien Chen and Li-Chyong Chen} } @article {4388, title = {Thermally Strain-Induced Band Gap Opening on Platinum Diselenide-Layered Films: A Promising Two-Dimensional Material with Excellent Thermoelectric Performance}, journal = {Chemistry of MaterialsChemistry of Materials}, volume = {33}, year = {2021}, note = {

doi: 10.1021/acs.chemmater.0c04351

}, month = {2021}, pages = {3490 - 3498}, publisher = {American Chemical Society}, abstract = {n/a}, isbn = {0897-4756}, url = {https://doi.org/10.1021/acs.chemmater.0c04351}, author = {Su, Teng-Yu and Wang, Te-Hsien and Deniz P. Wong and Wang, Yi-Chung and Huang, Angus and Sheng, Ying-Chun and Tang, Shin-Yi and Tsu-chin Chou and Chou, Ta-Lei and Jeng, Horng-Tay and Li-Chyong Chen and Kuei-Hsien Chen and Chueh, Yu-Lun} } @article {catal11111295, title = {Thickness-Dependent Photocatalysis of Ultra-Thin MoS2 Film for Visible-Light-Driven CO2 Reduction}, journal = {Catalysts}, volume = {11}, number = {11}, year = {2021}, note = {n/a}, abstract = {

The thickness of transition metal dichalcogenides (TMDs) plays a key role in enhancing their photocatalytic CO2 reduction activity. However, the optimum thickness of the layered TMDs that is required to achieve sufficient light absorption and excellent crystallinity has still not been definitively determined. In this work, ultra-thin molybdenum disulfide films (MoS2TF) with 25 nm thickness presented remarkable photocatalytic activity, and the product yield increased by about 2.3 times. The photocatalytic mechanism corresponding to the TMDs{\textquoteright} thickness was also proposed. This work demonstrates that the thickness optimization of TMDs provides a cogent direction for the design of high-performance photocatalysts.

}, issn = {2073-4344}, doi = {10.3390/catal11111295}, url = {https://www.mdpi.com/2073-4344/11/11/1295}, author = {Yi-Fan Huang and Liao, Kuan-Wei and Fahmi, Fariz Rifqi Zul and Modak, Varad A. and Tsai, Shang-Hsuan and Ke, Shang-Wei and Chen-Hao Wang and Li-Chyong Chen and Kuei-Hsien Chen} } @article {4127, title = {Fast growth of large-grain and continuous MoS2 films through a self-capping vapor-liquid-solid method}, volume = {11}, year = {2020}, note = {n/a}, month = {2020}, pages = {3682}, abstract = {

Most chemical vapor deposition methods for transition metal dichalcogenides use an extremely small amount of precursor to render large single-crystal flakes, which usually causes low coverage of the materials on the substrate. In this study, a self-capping vapor-liquid-solid reaction is proposed to fabricate large-grain, continuous MoS2 films. An intermediate liquid phase-Na2Mo2O7 is formed through a eutectic reaction of MoO3 and NaF, followed by being sulfurized into MoS2. The as-formed MoS2 seeds function as a capping layer that reduces the nucleation density and promotes lateral growth. By tuning the driving force of the reaction, large mono/bilayer (1.1 mm/200 μm) flakes or full-coverage films (with a record-high average grain size of 450 μm) can be grown on centimeter-scale substrates. The field-effect transistors fabricated from the full-coverage films show high mobility (33 and 49 cm2 V-1 s-1 for the mono and bilayer regions) and on/off ratio (1 ~ 5 {\texttimes} 108) across a 1.5 cm {\texttimes} 1.5 cm region.

}, isbn = {2041-1723}, url = {https://doi.org/10.1038/s41467-020-17517-6}, author = {Chang, Ming-Chiang and Po-Hsun Ho and Tseng, Mao-Feng and Lin, Fang-Yuan and Hou, Cheng-Hung and Lin, I-Kuan and Wang, Hsin and Huang, Pin-Pin and Chiang, Chun-Hao and Yang, Yueh-Chiang and Wang, I-Ta and He-Yun Du and Wen, Cheng-Yen and Jing-Jong Shyue and Chun-Wei Chen and Kuei-Hsien Chen and Chiu, Po-Wen and Li-Chyong Chen} } @article {4145, title = {Localized surface plasmonic resonance role of silver nanoparticles in the enhancement of long-chain hydrocarbons of the CO2 reduction over Ag-gC3N4/ZnO nanorods photocatalysts}, year = {2020}, note = {n/a}, month = {2020}, pages = {116049}, abstract = {

The conversion of CO2 into hydrocarbon fuels via the photocatalytic reaction route is considered a potential strategy to concurrently address serious energy crisis and greenhouse gas emission problems. Nevertheless, the generation of long-chain hydrocarbon products (Cn, n >= 2) from the visible-light-reactive photocatalytic CO2 reduction has also been considering a contemporary challenge. Herein, we indicate that Ag nanoparticles (Ag NPs) loaded gC3N4/ZnO nanorods heterojunction (Ag-gC3N4/ZnO NRs abbreviation) has extended photoactive range and enhanced specific surface area. The combination of Ag NPs and gC3N4/ZnO NRs significantly enhances photocatalytic CO2 reduction efficiency to form the acetone product. Detail, the acetone production efficiency of Ag-gC3N4/ZnO NRs is 8.4 and 7.5 times higher than pure ZnO NRs and gC3N4/ZnO NRs at the same condition, respectively. This study represents a potential approach toward higher-energy-value hydrocarbons production and greenhouse gas emission mitigation.

}, keywords = {gCN, Hydrocarbon selectivity, Photocatalytic CO reduction, Surface plasmonic effect, ZnO nanorod}, isbn = {0009-2509}, url = {http://www.sciencedirect.com/science/article/pii/S0009250920305819}, author = {Thang, Nguyen Quoc and Sabbah, Amr and Li-Chyong Chen and Kuei-Hsien Chen and Hai, Le Viet and Thi, Cao Minh and Viet, Pham Van} } @article {3848, title = {Highly efficient nitrogen and carbon coordinated N{\textendash}Co{\textendash}C electrocatalysts on reduced graphene oxide derived from vitamin-B12 for the hydrogen evolution reaction}, journal = {Journal of Materials Chemistry A}, volume = {7}, year = {2019}, note = {n/a}, month = {2019}, pages = {7179 - 7185}, publisher = {The Royal Society of Chemistry}, abstract = {

Exploring electrocatalysts composed of earth-abundant elements for a highly efficient hydrogen evolution reaction (HER) is scientifically and technologically important for electrocatalytic water splitting. In this work, we report HER properties of acid treated pyrolyzed vitamin B12 supported on reduced graphene oxide (B12/G800A) that shows an extraordinarily enhanced catalytic activity with low overpotential (115 mV vs. RHE at 10 mA cm-2), which is better than that of most traditional nonprecious metal catalysts in acidic media. Stability tests through long-term potential cycles and at a constant current density confirm the exceptional durability of the catalyst. Notably, the B12/G800A catalyst exhibits extremely high turnover frequencies per cobalt site in acid, for example, 0.85 and 11.46 s-1 at overpotentials of 100 and 200 mV, respectively, which are higher than those reported for other scalable non-precious metal HER catalysts. Moreover, it has been conjectured that the covalency of Co{\textendash}C and Co{\textendash}N bonds affects HER activities by comparing the extended X-ray absorption fine structure (EXAFS) spectra of the B12/G800A. High-temperature treatment can modify the Co-corrin structure of B12 to form Co{\textendash}C bonds along with Co{\textendash}N, which broadens the band of cobalt, essentially lowering the d-band center from its Fermi level. The lower d-band center leads to a moderate hydrogen binding energy, which is favorable for hydrogen adsorption and desorption.

}, isbn = {2050-7488}, url = {http://dx.doi.org/10.1039/C8TA10935D}, author = {Sabhapathy, Palani and Liao, Chen-Cheng and Wei-Fu Chen and Tsu-chin Chou and Indrajit Shown and Sabbah, Amr and Yan-Gu Lin and Jyh-Fu Lee and Tsai, Ming-Kang and Kuei-Hsien Chen and Li-Chyong Chen} } @article {3842, title = {Integration of a ({\textendash}Cu{\textendash}S{\textendash})n plane in a metal{\textendash}organic framework affords high electrical conductivity}, volume = {10}, year = {2019}, note = {n/a}, month = {2019}, pages = {1721}, abstract = {

Designing highly conducting metal{\textendash}organic frameworks (MOFs) is currently a subject of great interest for their potential applications in diverse areas encompassing energy storage and generation. Herein, a strategic design in which a metal{\textendash}sulfur plane is integrated within a MOF to achieve high electrical conductivity, is successfully demonstrated. The MOF {[Cu2(6-Hmna)(6-mn)]{\textperiodcentered}NH4}n (1, 6-Hmna = 6-mercaptonicotinic acid, 6-mn = 6-mercaptonicotinate), consisting of a two dimensional ({\textendash}Cu{\textendash}S{\textendash})n plane, is synthesized from the reaction of Cu(NO3)2, and 6,6'-dithiodinicotinic acid via the in situ cleavage of an S{\textendash}S bond under hydrothermal conditions. A single crystal of the MOF is found to have a low activation energy (6 meV), small bandgap (1.34 eV) and a highest electrical conductivity (10.96 S cm-1) among MOFs for single crystal measurements. This approach provides an ideal roadmap for producing highly conductive MOFs with great potential for applications in batteries, thermoelectric, supercapacitors and related areas.

}, isbn = {2041-1723}, url = {https://doi.org/10.1038/s41467-019-09682-0}, author = {Abhishek Pathak and Shen, Jing-Wen and Muhammad Usman and Wei, Ling-Fang and Shruti Mendiratta and Chang, Yu-Shin and Sainbileg, Batjargal and Ngue, Chin-May and Ruei-San Chen and Hayashi, Michitoshi and Tzuoo-Tsair Luo and Fu-Rong Chen and Kuei-Hsien Chen and Tseng, Tien-Wen and Li-Chyong Chen and Kuang-Lieh Lu} } @article {4068, title = {Thermoelectric and electronic properties of chromium substituted tetrahedrite}, journal = {Semiconductor Science and Technology}, volume = {34}, year = {2019}, note = {n/a}, month = {2019}, pages = {035017}, publisher = {IOP Publishing}, abstract = {

Cr substituted tetrahedrites with the chemical formula Cu12-xCrxSb4S13 (x~=~0.15, 0.25, 0.35, 0.5, 0.75, 1.0) have been synthesised for thermoelectric study. Cr substitutes at the Cu site to optimize the thermoelectric properties and achieve a higher figure of merit (zT). X-Ray diffraction (XRD) analysis revealed that the tetrahedrite is the major phase with minor impurity phases. Electron probe microanalysis (EPMA) shows the formation of tetrahedrite main phase with near stoichiometry and the presence of Cu3SbS4, CuSbS2 and Sb as secondary phases. X-ray photoelectron spectroscopy (XPS) shows the oxidation state of Cu, Sb and S as +1, +3 and -2, respectively, whereas for Cr, it could not be identified. Temperature-dependent magnetic susceptibility of sample x~=~0.75 shows antiferromagnetic correlation originating from the Cr ion. The calculated effective magnetic moment of 2.83 μB per Cr atom indicates the presence of Cr+4 in this sample. The decrease in the electrical resistivity upon doping indicates the compensation of holes due to the substitution of Cr at the Cu site. But the x~=~0.35 sample is not following the trend due to larger compensation of holes with an activation energy of 124.6 meV. The temperature-dependent behaviour of electrical resistivity shows the shift in the Fermi level from the valance band towards the band gap. The absolute Seebeck coefficient is positive throughout the temperature range and follows a similar trend as that of electrical resistivity, with the exception of the x~=~0.35 sample. The electronic thermal conductivity reduces due to hole compensation caused by Cr substitution. Moreover, the substitution of Cr effectively reduces the lattice thermal conductivity due to point defect scattering of phonons. A maximum zT of 1.0 is achieved for sample x~=~0.35 at 700 K.

}, isbn = {0268-12421361-6641}, url = {http://dx.doi.org/10.1088/1361-6641/aafa31}, author = {Prem Kumar, D S and Tippireddy, Sahil and Anbalagan Ramakrishnan and Kuei-Hsien Chen and Malar, P and Mallik, Ramesh Chandra} } @article {2964, title = {Ge-Rich SiGe Mode-Locker for Erbium-Doped Fiber Lasers}, journal = {IEEE Journal of Selected Topics in Quantum Electronics}, volume = {24}, year = {2018}, note = {

n/a

}, month = {May-June 2018}, pages = {1 - 10}, abstract = {

n/a

}, keywords = {ABSORPTION, chemical exfoliation, composition ratio dependent saturable absorption, EDFL pulsation, erbium, erbium-doped fiber lasers, fibre lasers, FILMS, Ge-rich SiGe mode-locker, Ge-Si alloys, laser mode locking, laser tuning, nonstoichiometric saturable absorbers, Nonstoichiometric SiGe, optical fabrication, Optical fibers, optical pulse generation, optical saturable absorption, passive mode-locking, saturable absorption, self-amplitude modulation, self-phase modulation, SiGe, Silicon germanium, soliton compression, time 338 fs to 346 fs, time 730 fs, time 760 fs, time 820 fs, tunable nonlinear modulation depth, ultrafast fiber laser, ultrafast fiber lasers, Ultrafast optics, vaporized synthesis}, isbn = {1077-260X}, author = {C.C. Yang and C. H. Cheng and Chen, T. H. and Lin, Y. H. and Y. C. Chi and W. H. Tseng and P. H. Chang and C.Y. Chen and K. H. Chen and L. C. Chen and C.I. Wu and G. R. Lin} } @article {3078, title = {Above 10\% efficiency earth-abundant Cu2ZnSn(S,Se)4 solar cells by introducing alkali metal fluoride nanolayers as electron-selective contacts}, journal = {Nano Energy}, volume = {51}, year = {2018}, note = {

n/a

}, month = {2018}, pages = {597 - 603}, abstract = {

The present investigation mainly addresses the open circuit voltage (Voc) issue in kesterite based Cu2ZnSn(S,Se)4 solar cells by simply introducing alkali metal fluoride nanolayers (~ several nm NaF, or LiF) to lower the work functions of the front ITO contacts without conventional hole-blocking ZnO layers. Kelvin probe measurements confirmed that the work function of the front ITO decreases from 4.82 to 3.39 and 3.65 eV for NaF and LiF, respectively, resulting in beneficial band alignment for electron collection and/or hole blocking on top electrodes. Moreover, a 10.4\% power conversion efficiency (~ 11.5\% in the cell effective area) CZTSSe cell with improved Voc of up to 90 mV has been attained. This demonstration may provide a new direction of further boosting the performance of copper chalcogenide based solar cells as well.

}, keywords = {Alkali metal fluoride, CZTSSe, Electron-selective contacts, Kesterite, Open-circuit voltage deficit, Solar cells}, isbn = {2211-2855}, url = {http://www.sciencedirect.com/science/article/pii/S2211285518304233}, author = {Cheng-YingChen and Bandiyah Sri Aprillia and Wei-ChaoChen and Yen-Ching Teng and Chih-Yuan Chiu and Ruei-San Chen and Jih-Shang Hwang and Kuei-Hsien Chen and Li-Chyong Chen} } @article {2907, title = {Flexible sensor for dopamine detection fabricated by the direct growth of α-Fe2O3 nanoparticles on carbon cloth}, journal = {Applied Surface Science}, volume = {427}, year = {2018}, note = {

n/a

}, month = {2018}, pages = {387 - 395}, abstract = {

AbstractPorous α-Fe2O3 nanoparticles are directly grown on acid treated carbon cloth (ACC) using a simple hydrothermal method (denoted as ACC-α-Fe2O3) for employment as a flexible and wearable electrochemical electrode. The catalytic activity of ACC-α-Fe2O3 allowing the detection of dopamine (DA) is systematically investigated. The results showed that the ACC-α-Fe2O3 electrode exhibits impressive electrochemical sensitivity, stability and selectivity for the detection of DA. The detection limit determined with the amperometric method appears to be around 50nM with a linear range of 0.074{\textendash}113μM. The impressive DA sensing ability of the as prepared ACC-α-Fe2O3 electrode is due to the good electrochemical behavior and high electroactive surface area (19.96cm2) of α-Fe2O3 nanoparticles anchored on the highly conductive ACC. It is worth noting that such remarkable sensing properties can be maintained even when the electrode is in a folded configuration.

}, keywords = {-FeO, Amperometry, Biosensor, Carbon cloth, Dopamine, Flexible, Wearable, α}, isbn = {0169-4332}, url = {http://www.sciencedirect.com/science/article/pii/S0169433217325266}, author = {K.P.O., Mahesh and Indrajit Shown and Li-Chyong Chen and Kuei-Hsien Chen and Yian Tai} } @article {Chen2018, title = {Above 10\% Efficiency Earth-abundant Cu2ZnSn(S,Se)4 Solar Cells by Introducing Alkali Metal Fluoride Nanolayers as Electron-selective Contacts}, journal = {Nano Energy}, year = {2018}, note = {n/a}, pages = {-}, abstract = {

Abstract The present investigation mainly addresses the open circuit voltage (Voc) issue in kesterites based Cu2ZnSn(S,Se)4 solar cells by simply introducing alkali metal fluoride nanolayers (~ several nm NaF, or LiF) to lower the work functions of the front {\.I}TO\} contacts without conventional hole-blocking ZnO layers. Kelvin probe measurements confirmed that the work function of the front {\.I}TO\} decreases from 4.82 to 3.39 and 3.65 eV for NaF and LiF, respectively, resulting in beneficial band alignment for electron collection and/or hole blocking on top electrodes. Moreover, a 10.4\% power conversion efficiency (~11.5\% in the cell effective area) \{CZTSSe\} cell with improved Voc of up to 90 mV has been attained. This demonstration may provide a new direction of further boosting the performance of copper chalcogenide based solar cells as well.

}, keywords = {Solar cells}, issn = {2211-2855}, doi = {https://doi.org/10.1016/j.nanoen.2018.06.028}, url = {https://www.sciencedirect.com/science/article/pii/S2211285518304233}, author = {Cheng-YingChen and Bandiyah Sri Aprillia and Wei-ChaoChen and Yen-Ching Teng and Chih-Yuan Chiu and Ruei-San Chen and Jih-Shang Hwang and Kuei-Hsien Chen and Li-Chyong Chen} } @article {CHIU2018438, title = {A synergistic {\textquotedblleft}cascade{\textquotedblright} effect in copper zinc tin sulfide nanowalls for highly stable and efficient lithium ion storage}, journal = {Nano Energy}, volume = {44}, year = {2018}, note = {n/a}, pages = {438 - 446}, abstract = {n/a}, keywords = {Anode, Cascade effect, Copper zinc tin sulfide, High rate capability, Lithium ion batteries, Nanostructure}, issn = {2211-2855}, doi = {https://doi.org/10.1016/j.nanoen.2017.12.020}, url = {http://www.sciencedirect.com/science/article/pii/S2211285517307954}, author = {Jian-Ming Chiu and Tsu-chin Chou and Deniz P. Wong and Yi-Rung Lin and Chin-An Shen and Sunny Hy and Bing-Joe Hwang and Yian Tai and Heng-Liang Wu and Li-Chyong Chen and Kuei-Hsien Chen} } @article {2856, title = {Co-solvent effect on microwave-assisted Cu2ZnSnS4 nanoparticles synthesis for thin film solar cell}, journal = {Solar Energy Materials and Solar Cells}, volume = {161}, year = {2017}, pages = {416-423}, author = {Wei-ChaoChen and Venkatesh Tunuguntla and Min-HsuehChiu and Lian-JiunLi and Indrajit Shown and Chih-Hao Lee and Jih-Shang Hwang and Li-Chyong Chen and Kuei-Hsien Chen} } @article {2852, title = {Geogrid-Inspired Nanostructure to Reinforce a CuxZnySnzS Nanowall Electrode for High-Stability Electrochemical Energy Conversion Devices}, journal = {Advanced Energy Materials}, volume = {7}, year = {2017}, pages = {1602210}, author = {Jian-Ming Chiu and E-Ming Chen and Chuan-Pei Lee and Indrajit Shown and Venkatesh Tunuguntla and Jui-Sheng Chou and Li-Chyong Chen and Kuei-Hsien Chen and Yian Tai} } @article {2859, title = {High-κ Samarium-Based Metal{\textendash}Organic Framework for Gate Dielectric Applications}, journal = {ACS Appl. Mater. Interfaces}, volume = {9}, year = {2017}, pages = {21872{\textendash}21878}, author = {Abhishek Pathak and Guan Ru Chiou and Narsinga Rao Gade and Muhammad Usman and Shruti Mendiratta and Tzuoo-Tsair Luo and Tien Wen Tseng and Jenq-Wei Chen and Fu-Rong Chen and Kuei-Hsien Chen and Li-Chyong Chen and Kuang-Lieh Lu} } @article {3852, title = {Thermoelectric Properties of Indium and Gallium Dually Doped ZnO Thin Films}, journal = {ACS Applied Materials \& InterfacesACS Applied Materials \& Interfaces}, volume = {8}, year = {2016}, note = {

doi: 10.1021/acsami.6b10591

}, month = {2016}, pages = {33916 - 33923}, publisher = {American Chemical Society}, abstract = {n/a}, isbn = {1944-8244}, url = {https://doi.org/10.1021/acsami.6b10591}, author = {Tran Nguyen, Nhat Hong and Nguyen, Truong Huu and Liu, Yi-ren and Aminzare, Masoud and Pham, Anh Tuan Thanh and Cho, Sunglae and Deniz P. Wong and Kuei-Hsien Chen and Seetawan, Tosawat and Pham, Ngoc Kim and Ta, Hanh Kieu Thi and Tran, Vinh Cao and Phan, Thang Bach} } @article {2858, title = {Enhanced solar cell performance of Cu2ZnSn(S,Se)4 thin films through structural control by using multi-metallic stacked nanolayers and fast ramping process for sulfo-selenization}, journal = {Nano Energy}, volume = {30}, year = {2016}, pages = {762-770}, author = {Wei-ChaoChen and Cheng-YingChen and Venkatesh Tunuguntla and Shao HungLu and ChaochinSu and Chih-Hao Lee and Kuei-Hsien Chen and Li-Chyong Chen} } @article {2568, title = {Enhancement of charge collection at shorter wave lengths from alternative CdS deposition conditions for high efficiency CZTSSe solar cells}, journal = {Solar Energy Materials \& Solar Cells }, volume = {149}, year = {2016}, pages = {49-54 }, author = {V. Tunuguntla and W.C. Chen and T.D. Newman and Hsieh, M. C. and S.H. Lu and Su, C. and L. C. Chen and K. H. Chen} } @article {2574, title = {Fabrication of Cu2ZnSnSe4 solar cells through multi-step selenization of layered metallic precursor film}, journal = {Thin Solid Films }, year = {2016}, author = {W.C. Chen and V. Tunuguntla and Li, H. W. and C.Y. Chen and S.S. Li and J.S. Hwang and Lee, C. H. and L. C. Chen and K. H. Chen} } @article {2563, title = {Bifacial sodium-incorporated treatments: tailoring deep traps and enhancing carrier transport properties in Cu2ZnSnS4 solar cells}, journal = {Nano Energy }, volume = {16}, year = {2015}, pages = {438}, author = {Y.R. Lin and V. Tunuguntla and S.Y. Wei and W.C. Chen and D. Wong and C.H. Lai and L.K. Liu and L. C. Chen and K. H. Chen} } @article {2566, title = {Comparison of CVD- and MBE-grown GaN nanowires: crystallinity, photoluminescence, and photoconductivity}, journal = {J. Electronic Mater. }, volume = {44 }, year = {2015}, pages = {177}, author = {R. S. Chen* and H. Y. Tsai and C. H. Chan and Y.S. Huang and Y. T. Chen and K. H. Chen and L. C. Chen} } @article {2558, title = {Vertically aligned epitaxial graphene nanowalls with dominated nitrogen-doping for superior supercapacitors}, journal = {Carbon }, volume = {82}, year = {2015}, pages = {124-134}, author = {H.F. Yen and Y.Y. Horng and M.S. Hu and W.H. Yang and Y. Tai and K. H. Chen and L. C. Chen} } @article {2554, title = {Effect of copper oxide oxidation state on the polymer-based solar cell buffer layers}, journal = {ACS Appl. Mater. \& Inter. }, year = {2014}, author = {H. T. Lien and D. P. Wong and N.H. Tsao and C.I. Huang and Su, C. and K. H. Chen and L. C. Chen} } @article {2553, title = {Optical properties of plasma-assisted molecular beam epitaxy grown InN/Sapphire}, journal = {Opt. Mater. }, volume = {37}, year = {2014}, pages = {1}, author = {D.N. Talwa and Y.C. Liao and L. C. Chen and K. H. Chen and Z.C. Feng} } @article {1759, title = {Atomistic nucleation sites of Pt nanoparticles on N-doped carbon nanotubes}, journal = {Nanoscale}, volume = {5}, year = {2013}, pages = {6812-6818}, author = {Y.L. Liu and C. W. Hsu and S. Dhara and C. W. Chang and H. M. Tsai and L. C. Chen and K. H. Chen and W.F. Pong* and G. C. Chi} } @article {1753, title = {Band gap engineering of chemical vapor deposited graphene by in-situ BN doping}, journal = {ACS Nano}, volume = {7}, year = {2013}, pages = {1333-1341}, author = {C.K. Chang and S. Kataria and Kuo, C. C. and A. Ganguli and B.Y. Wang and J. Y. Hwang and K.J. Huang and W.H. Yang and S.B. Wang and C.H. Chuang and M. Chen and C.I. Huang and W.F. Pong and K.J. Song and S.J. Chang and J. Guo and Y. Tai and M. Tsujimoto and S. Isoda and C. W. Chen and L. C. Chen and K. H. Chen} } @article {211, title = {Growth of β-Ga2O3 and GaN nanowires on GaN for photoelectrochemical hydrogen generation}, journal = { Nanotechnology}, volume = {24}, year = {2013}, pages = {055401}, author = {Jih-Shang Hwang and Tai-Yan Liu and Surjit Chattopadhyay and Geng-Ming Hsu and Antonio M Basilio and Han-Wei Chen and Yu-Kuei Hsu and Wen-Hsun Tu and Yan-Gu Lin and Kuei-Hsien Chen and Chien-Cheng Li and Sheng-Bo Wang and Hsin-Yi Chen and Li-Chyong Chen} } @article {1756, title = {High K nanophase zinc oxide on biomimetic silicon nanotip array as super-capacitors}, journal = {Nano Letters}, volume = {13}, year = {2013}, pages = {1422-1428}, author = {H.C. Han and C.W. Chong and S.B. Wang and D. Heh and C.A. Tseng and Y.F. Huang and S. Chattopadhyay and K. H. Chen and C.F. Lin and J.H. Lee and L. C. Chen} } @article {1746, title = {Imaging layer number and stacking order through formulating Raman fingerprints obtained from hexagonal single crystals of few layer graphene}, journal = {Nanotechnology}, volume = {24}, year = {2013}, pages = {015702}, author = {J.S. Hwang and Lin, Y. H. and J. Y. Hwang and R. Chang and S. Chattopadhyay and C.J. Chen and P. Chen and H. P. Chiang and T.R. Tsai and L. C. Chen and K. H. Chen} } @article {1729, title = {Effect of substrate temperature on orientation of subphthalocyanine molecule in organic photovoltaic cells}, journal = {Thin Solid Films}, volume = {520}, year = {2012}, pages = {2289-2292}, author = {C.T. Chou and W.L. Tang and Lin, C. H. and C.H. Liu and L. C. Chen and K. H. Chen} } @article {1745, title = {Enhancing efficiency with fluorinated interlayer in small molecule organic solar cell}, journal = {J. Mater. Chem.}, volume = {22}, year = {2012}, pages = {22899}, author = {H.C. Han and C.A. Tseng and C.Y. Du and A.Ganguly and C.W. Chong and S.B. Wang and C.F. Lin and S.H. Chang and C.C. Su and J.H. Lee and K. H. Chen and L. C. Chen} } @article {1737, title = {Growth of sparse arrays of narrow GaNnanorods hosting spectrally stable InGaNquantum disks}, journal = {Opt. Express}, volume = {20}, year = {2012}, pages = {16166-16173 }, author = {Y. T. Chen and W.C. Tsai and W.Y. Chen and C. L. Hsiao and H. C. Hsu and W.H. Chang and T.M. Hsu and K. H. Chen and L. C. Chen} } @article {1742, title = {Photoconduction efficiencies in GaN nanowires grown by chemical vapor deposition and molecular beam epitaxy: acomparison study}, journal = {Appl. Phys. Lett.}, volume = {101}, year = {2012}, pages = {113109}, author = {R. S. Chen and H. Y. Tsai and Y.S. Huang and Y. T. Chen and L. C. Chen and K. H. Chen} } @article {1735, title = {Stacking orientation mediation of pentacene and derivatives for highopen-circuit voltage organic solar cells}, journal = {J. Phys. Chem. Lett.}, volume = {3}, year = {2012}, pages = {1079-1083}, author = {C.T. Chou and Lin, C. H. and Y. Tai and C.H.Liu and L. C. Chen and K. H. Chen} } @article {1734, title = {Tunable photoluminescence from graphene oxide}, journal = {Angewandte Chemie}, volume = {51}, year = {2012}, pages = {6662-6666}, author = {C.T. Chien and S.S. Li and W.J. Lai and Y.C. Yeh and H.A. Chen and L. C. Chen and K. H. Chen and T.Nemoto and S. Isoda and M. Chen and T. Fujita and M. Chhowalla and C. W. Chen} } @article {1709, title = {Au nanoparticle modified GaN photoelectrode for photoelectrochemical hydrogen generation}, journal = {Electrochem. Comm.}, volume = {13}, year = {2011}, pages = {530-533}, author = {W.H. Tu and Y.K. Hsu and C.H. Yen and C.I. Wu and J.S. Hwang and L. C. Chen and K. H. Chen} } @article {1721, title = {Multi-bandgap-sensitized ZnO nanorod photoelectrode arrays for water splitting: an X-ray absorption spectroscopy approach for the electronic evolution under solar illumination}, journal = {J. Phys. Chem. C}, volume = {115}, year = {2011}, pages = {21971-21980 }, author = {H.M. Chen and C.K. Chen and C.C. Lin and R.S. Liu and H. Yang and W.S. Chang and K. H. Chen and T.S. Chan and J.F. Lee and D.P. Tsai} } @article {1722, title = {A new approach to solar hydrogen production: a ZnO{\textendash}ZnS solid solution nanowire array photoanode}, journal = {Advanced Energy Materials}, volume = {1}, year = {2011}, pages = {742-747}, author = {H.M. Chen and C.K. Chen and R.S. Liu and C. C. Wu and W.S. Chang and K. H. Chen and T.S. Chan and J.F. Lee and D.P. Tsai} } @article {1715, title = {Photoconduction and the electronic structure of silica nanowires embedded with gold nanoparticles}, journal = {Phys. Rev. B}, volume = {84}, year = {2011}, pages = {165412 }, author = {C.-W. Pao and C.-T. Wu and H.-M. Tsai and Y.-S. Liu and C.-L. Chang and W.F. Pong and J.-W. Chiou and C.-W. Chen and M.-S. Hu and M.-W. Chu and L.-C. Chen and C.-H. Chen and K.-H. Chen and S.-B. Wang and S.-J. Chang and M.-H. Tsai and H.-J. Lin and J.-F. Lee and J.-H. Guo} } @article {1714, title = {Top laminated graphene electrode in a semitransparent polymer solar cell by simultaneous thermal annealing/releasing method}, journal = {ACS Nano}, volume = {5}, year = {2011}, pages = {6564-6570}, author = {Y.Y. Lee and K.H. Tu and C. C. Yu and S.S. Li and J. Y. Hwang and C.C. Lin and K. H. Chen and L. C. Chen and H.L. Chen and C. W. Chen} } @article {1717, title = {Tuning open-circuit voltage in organic solar cells by magnesium modified Alq3}, journal = {J. Appl. Phys.}, volume = {110}, year = {2011}, pages = {083104}, author = {C.T. Chou and Lin, C. H. and M.H. Wu and T.W. Cheng and J.H. Lee and C.H.J. Liu and Y. Tai and S. Chattopadhyay and Wang, J. K. and K. H. Chen and L. C. Chen} } @article {1697, title = {Array of CdSe QD-sensitized ZnO nanorods serves as photoanode for water splitting}, journal = {J. Electrochem. Soc.}, volume = {157}, year = {2010}, pages = {1430-1433}, author = {N. Chouhan and C.L. Yeh and S.F. Hu and J. H. Huang and C.W. Tsai and R.S. Liu and W.S. Chang and K. H. Chen} } @article {1676, title = {A complete Raman mapping of phase transitions in Si under indentation}, journal = {J. Raman Spectroscopy}, volume = {41}, year = {2010}, pages = {334}, author = {C. R. Das and H. C. Hsu and S. Dhara and A. K. Bhaduri and B. Raj and L. C. Chen and K. H. Chen and S. K. Albert and A. Ray and Y. Tzeng} } @article {1684, title = {Direct observation of amophization in load rate dependent nanoindentation studies of crystalline Si}, journal = {Appl. Phys. Lett.}, volume = {96}, year = {2010}, pages = {253113}, author = {S. Dhara and C. W. Chang and H. M. Tsai and L.C. Chen* and K. H. Chen} } @article {1680, title = {Effects of cathode buffer layers on the efficiency of bulk-heterojunction solar cells}, journal = {Appl. Phys. Lett.}, volume = {96}, year = {2010}, pages = {263506}, author = {Chang, C. C. and C.F. Lin and J.M. Chiou and T.H. Ho and Y. Tai and J.H. Lee and Y.F. Chen and Wang, J. K. and L. C. Chen and K.H. Chen*} } @article {1679, title = {Focused ion beam induced nanowelding and defect doping as building block for nanoscale electronics in GaN nanowires}, journal = {J. Phys. Chem.}, volume = { C114}, year = {2010}, pages = {15260}, author = {S. Dhara and L. C. Yao and C. T. Wu and C. W. Hsu and W. S. Tu and K. H. Chen and Wang, Y. L. and L. C. Chen} } @article {1696, title = {Growth orientation dependent hardness for epitaxial wurtzite InN films}, journal = {J. Nanosci. Nanotechnol.}, volume = {10}, year = {2010}, pages = {5170-5174}, author = {S. Kataria and T. W. Liu and C. L. Hsiao and S. Dhara and L. C. Chen and K. H. Chen and S. Dash and A. K. Tyagi} } @article {1675, title = {Heteroepitaxy of m-plane (1010) InN on (100)-LiAlO2 substrates and its strong anisotropic optical behaviors}, journal = {,J. Appl. Phys.}, volume = {107}, year = {2010}, pages = {073502}, author = {C. L. Hsiao and J. T. Chen and H. C. Hsu and Y.C. Liao and P.H. Tseng and Y. T. Chen and Z.C. Feng and L.W. Tu and M. C. Chou and L. C. Chen and K. H. Chen} } @article {1674, title = {Improving the photoelectrochemical and H2gas generation property of c-plane GaN thin film through crystallographic etching of the film}, journal = {J. Mater. Chem.}, volume = {20}, year = {2010}, pages = {8118-8125}, author = {A.M. Basilio and Y.K. Hsu and W.H. Tu and G. M. Hsu and L. C. Chen and K.H. Chen*} } @article {1686, title = {Monolayer-quantum dots sensitized ZnO nanowires-array photoelectrodes: true efficiency for water splitting}, journal = {Angew. Chem. Int. Ed.}, volume = {49}, year = {2010}, pages = {5966-5969}, author = {H.M. Chen and C.K. Chen and Chang, Y. C. and C.W. Tsai and R.S. Liu and S.F. Hu and W.S. Chang and K. H. Chen} } @article {1655, title = {Electroluminescence from ZnO/Si-nanotips light emitting diodes}, journal = {Nano Letters}, volume = {9}, year = {2009}, pages = {1839}, author = {Y. P. Hsieh and H.Y. Chen and M.Z. Lin and S.C. Shiu and M. Hofmann and M.Y. Chern and X. Jia and Y.J. Yang and H. J. Chang and H.M. Huang and S.C. Tseng and L.C. Chen* and K. H. Chen and C.F. Lin and C.T. Liang* and Y.F. Chen} } @article {1647, title = {Enhanced charge separation by sieve-layer mediation in high efficiency inorganic-organic solar cell}, journal = {Adv. Mater.}, volume = {21}, year = {2009}, pages = {259-263}, author = {C.H. Lin, , ,, , , , ,, ,, and K.H. and S. Chattopadhyay and C. W. Hsu and M.H. Wu and W.C. Chen and C. T. Wu and S.C. Tsen and J.H. Lee and Chen, C. H. and C. W. Chen and L. C. Chen and K.H. Chen*} } @article {1651, title = {Enhancement of electron field emission of nitrogenated carbon nanotubes on chlorination}, journal = {Diamond Relat. Mater.}, volume = {18}, year = {2009}, pages = {457-460 }, author = {S. C. Ray and U. Palnitkar and C. W. Pao and H. M. Tsai and W.F. Pong* and I-Nan Lin and P. Papakonstantinou and L. C. Chen and K. H. Chen} } @article {1671, title = {Silver-Nanoparticle-Conjugated Polypeptide Brushes for Surface-Enhanced Raman Scattering}, journal = {J. Phys. Chem.}, volume = {C13}, year = {2009}, pages = {13498-13504}, author = {D.Y. Wang and T.S. Teng and Wu, Y. C. and Y.C. Lee and K. H. Chen and Chen, C. H. and Y.C. Chang* and C. C. Chen*} } @article {1670, title = {Spectral characterization of bulk and nanostructuredaluminum nitride}, journal = {J. Nanophotonics}, volume = {3}, year = {2009}, pages = {031950}, author = {B. Berzina and L. Trinkler and D. Jakimovica and V. Korsaks and J. Grabis and I. Steins and Palcevskis and S. Bellucci and L. C. Chen and S.t Chattopadhyay and K. H. Chen} } @article {1639, title = {Field emission effects of nitrogenated carbon nanotubes on chlorination and oxidation}, journal = {J. Appl. Phys.}, volume = {104}, year = {2008}, pages = {063710}, author = {S. C. Ray and U. Palnitkar and C. W. Pao and H. M. Tsai and W.F. Pong* and I-Nan Lin and P. Papakonstantinou and Abhijit Ganguly and L. C. Chen and K. H. Chen} } @article {1631, title = {On-chip fabrication of well aligned and contact barrier-free GaN nanobridge devices with ultrahigh photocurrent responsivity}, journal = {Small}, volume = {4}, year = {2008}, pages = {925-929}, author = {R. S. Chen and S.W. Wang and Lan, Z. H. and J.T.H. Tsai and C. T. Wu and L. C. Chen and K.H. Chen* and Y.S. Huang and Chen, C. C.} } @article {1635, title = {Suppressing series resistance in organic solar cells by oxygen plasma treatment}, journal = {Appl. Phys. Lett.}, volume = {92}, year = {2008}, pages = {233302}, author = {Lin, C. H. and S.C. Tseng and Y.K. Liu and Y. Tai and S. Chattopadhyay and C.F. Lin and J.H. Lee and J.S. Hwang and L.C. Chen* and W.C. Chen and K.H. Chen*} } @article {1628, title = {A comparative study of the electronic structures of oxygen- and chlorinetreated nitrogenated carbon nanotubes by X-ray absorption and scanning photoelectron microscopy}, journal = {Appl. Phys. Lett.}, volume = {91}, year = {2007}, pages = { 202102}, author = {S. C. Ray and C. W. Pao and H. M. Tsai and J.W. Chiou and W.F. Pong* and C. W. Chen and M.-H. Tsai and P. Papakonstantinou and L. C. Chen and K. H. Chen} } @article {1617, title = {Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy study}, journal = { Appl. Phys. Lett.}, volume = {90}, year = {2007}, pages = {192107}, author = {S. C. Raym and C. W. Pao and H. M. Tsai and J.W. Chiou and W.F. Pong* and C. W. Chen and M.H. Tsai and P. Papakonstantinou and L. C. Chen and K. H. Chen and W. G. Graham} } @article {1612, title = {Formation of Pt-Ru nanoparticles in ethylene glycol solution: an in situ X-ray absorption spectroscopy study}, journal = {Langmuir}, volume = {23}, year = {2007}, pages = {5802-5809}, author = {L.S. Sarma and Chen, C. H. and S.M.S. Kumar and G.R. Wang and S.C. Yen and D.G. liu and H.S. Sheu and K.L. Yu and M.T. Tang and J.F. Lee and C. Bock and K. H. Chen and B.J. Hwang*} } @article {1611, title = {High performance of low electrocatalysts loading on CNT directly grown on carbon for DMFC}, journal = {J. Power Sources}, volume = {171}, year = {2007}, pages = {55-62}, author = {C. H. Wang and H.-Y. Du and Y. T. Tsai and C.P. Chen and C.J. Huang and L. C. Chen and K.H. Chen* and H. C. Shih} } @article {1622, title = {Long-range ferromagnetic ordering at room temperature in Co+ implanted TiO2 nanorods}, journal = {Nanotechnology}, volume = {18}, year = {2007}, pages = {325705}, author = {S. Dhara* and J.J. Wu and G. Mangama and S. Bera and P. Magudapathy and C. T. Wu and K. G. M. Nair and M. Kamaruddin and C. C. Yu and M. H. Yang and S. C. Liu and A. K. Tyagi and S. V. Narashiman and L. C. Chen and K. H. Chen} } @article {1619, title = {Multiphonon Raman scattering in GaN nanowires}, journal = {Appl. Phys. Lett.}, volume = {90}, year = {2007}, pages = {213104}, author = {S. Dhara*, , , ,,,, , ,, K. H and S. Chandra and G. Mangamma and S. Kalavathi and P. Shankar and K. G. M. Nair and A. K. Tyagi and C. W. Hsu and Kuo, C. C. and L. C. Chen and K. H. Chen and K. K. Sriram} } @article {1626, title = {Photoluminescence spectroscopy of nearly defect-free InN microcrystals exhibiting nondegenerate semiconductor behaviors}, journal = {Appl. Phys. Lett.}, volume = {91}, year = {2007}, pages = {181912}, author = {C. L. Hsiao and H. C. Hsu and L.C. Chen* and C. T. Wu and C. W. Chen and M. Chen and L.W. Tu and K. H. Chen} } @article {1595, title = {Electroluminescence from ZnO nanowire/polymer composite p-n junction}, journal = {Appl. Phys. Lett.}, volume = {88}, year = {2006}, pages = { 173503-(1-3)}, author = {Chang, C. Y. and F. C. Tsao and C. J. Pan and G. C. Chi and H. T. Wang and J. J. Chen and F. Ren and D. P. Norton and S.J. Pearton* and K. H. Chen and L. C. Chen} } @article {1609, title = {Electronic structure of group-III-nitride nanorods studied by x-ray absorption, x-ray emission, and Raman spectroscopy}, journal = {Appl. Phys. Lett.}, volume = {88}, year = {2006}, pages = {223113-(1-3)}, author = {C. W. Pao and P.D. Babu and H. M. Tsai and J.W. Chiou and S. C. Ray and S.C. Yang and F.Z. Chien and W.F. Pong* and M.-H. Tsai and C. W. Hsu and L. C. Chen and K. H. Chen and H.-J. Lin and J.F. Lee and J. H. Guo} } @article {1600, title = {High methanol oxidation activity of electrocatalysts supported by directly grown nitrogen containing carbon nanotubes on carbon cloth}, journal = {Electrochimica Acta}, volume = {52}, year = {2006}, pages = {1612-1617}, author = {C. H. Wang and H. C. Shih and Y. T. Tsai and H. Y. Du and L. C. Chen and K.H. Chen*} } @article {1589, title = {Luminescence properties of wurtzite AlN nanotips}, journal = {Appl. Phys. Lett.}, volume = {89}, year = {2006}, pages = {163127-(1-3)}, author = {S. C. Shi and C.F. Chen and S. Chattopadhyay and S. K. Dhara and K. H. Chen and B. K. Ke and L.C. Chen* and L. Trinkler and B. Berzina} } @article {1607, title = {Multi-wall carbon nanotubes coated with polyaniline}, journal = {Polymer}, volume = {47}, year = {2006}, pages = {5715-5723}, author = {E. N. Konyushenko, , , , , ,, , , and J. Stejskal* and M. Trchova and J. Hradi and J. Kovarova and J. Prokes and M. Cieslar and J. Y. Hwang and K. H. Chen and I. Sapurina} } @article {1572, title = {A 5 nm ruthenium thin film as a directly plate-able copper diffusion barrier}, journal = {Appl. Phys. Lett.}, volume = {86}, year = {2005}, pages = {083104-(1-3)}, author = {T. N. Arunagiri, , , ,,,, and and Y. Zhang and O. Chyan* and M. El-Bounani and M. J. Kim and C. T. Wu and L. C. Chen and K. H. Chen} } @article {1581, title = {Comparison of the electronic structures of AlN nanotips grown on p- and n-type Si substrates}, journal = {J. Phys.: Condens. Matter}, volume = {17}, year = {2005}, pages = {7523-7530}, author = {J. W.Chiou and H. M. Tsai and C. W. Pao and C. L. Dong* and C. L. Chang and F.Z. Chien and W.F. Pong and M.-H. Tsai and S. C. Shi and C.F. Chen and L. C. Chen and K. H. Chen and I.-H. Hong and C.-H. Chen and H.-J. Lin and J. H. Guo} } @article {1568, title = {Effects of high-density oxygen plasma post-treatment on field emission properties of carbon nanotube field-emission displays}, journal = {Jpn. J. Appl. Phys.}, volume = {44}, year = {2005}, pages = {8231-8236}, author = {C. P. Juan and Tsai, C. C. and K. H. Chen and L. C. Chen and H. C. Cheng} } @article {1569, title = {Fabrication and characterization of lateral field emission device based on carbon nanotubes}, journal = {Jpn. J. Appl. Phys.}, volume = {44}, year = {2005}, pages = {2612-2617}, author = {C. P. Juan and Tsai, C. C. and K. H. Chen and L. C. Chen and H. C. Cheng} } @article {1579, title = {Formation and in-situ dynamics of metallic nanoblisters in self-ion-implanted GaN nanowires}, journal = {Nanotechnology}, volume = {16}, year = {2005}, pages = {2764-2769}, author = {A. Datta and S. Dhara* and S. Muto and C. W. Hsu and C. T. Wu and C. H. Shen and T. Tanabe and T. Maruyama and K. H. Chen and L. C. Chen and Wang, Y. L.} } @article {1573, title = {Mechanism of nanoblister formation in Ga+ self-ion implanted GaN nanowires}, journal = {Appl. Phys. Lett.}, volume = {86}, year = {2005}, pages = {203119-(1-3)}, author = {S. Dhara, ,,,, ,, ,,, and A. Datta and C. T. Wu and K.H. Chen* and Wang, Y. L. and S. Muto and T. Tanabe and C. H. Shen and C. W. Hsu and L. C. Chen and T. Maruyama} } @article {1545, title = {Characterization of nanodome on GaN nanowires formed with Ga ion irradiation}, journal = {Mater. Trans.}, volume = {45}, year = {2004}, pages = {435-439 }, author = {S. Muto* and S. K. Dhara and A. Datta and C. W. Hsu and C. T. Wu and C. H. Shen and L. C. Chen and K. H. Chen and Wang, Y. L. and T. Tanabe and T. Maruyama and H. M. Lin and Chen, C. C.} } @article {1555, title = {Electronic and bonding structures of B-C-N thin films by X-ray absorption and photoemission spectroscopy}, journal = {J. Appl. Phys. }, volume = {96}, year = {2004}, pages = {208-211}, author = {S. C. Ray and H. M. Tsai and C. W. Bao and J.W. Chiou and J. C. Jan and K. Kumar and W.F. Pong* and M.-H. Tsai and S. Chattopadhyay and L. C. Chen and S. C. Chien and M.T. Lee and S.T. Lin and K. H. Chen} } @article {1541, title = {Generally applicable self-masked dry etching technique for nanotip arrays formation}, journal = {Nano Letters}, volume = {4}, year = {2004}, pages = {471-475}, author = {C.H. Hsu and H.C. Lo and C.F. Chen and C. T. Wu and J.H. Hwang and D. Das and J. Tsai and L. C. Chen and K.H. Chen*} } @article {1559, title = {Growth and characterization of vertically aligned IrO2 nanotubes}, journal = {J. Crystal Growth}, volume = {271}, year = {2004}, pages = {105-112}, author = {R. S. Chen and H. M. Chang and Y. S. Huang* and D. S. Tsai and S. Chattopadhyay and K. H. Chen} } @article {1558, title = {Growth of well aligned IrO2 nanotubes on LiTaO3 (012) substrates}, journal = {Chem. Mater.}, volume = {16}, year = {2004}, pages = {2457-2462}, author = {R. S. Chen and Y. S. Huang* and D. S. Tsai and S. Chattopadhyay and C. T. Wu and Lan, Z. H. and K. H. Chen} } @article {1549, title = {X-Ray absorption studies of boron{\textendash}carbon{\textendash}nitrogen (BxCyNz ) ternary}, journal = {Diamond \& Related Mater.}, volume = {13}, year = {2004}, pages = {1553-1557}, author = {S.C. Ray,, ,,, ,, , ,, and H. M. Tsai and J.W. Chiou and J. C. Jan and K. Kumar and W.F. Pong* and F.Z. Chien and M.-H. Tsai and S. Chattopadhyay and L. C. Chen and S. C. Chien and M.T. Lee and S.T. Lin and K. H. Chen} } @article {1537, title = {Electronic structure of GaN nanowire studied by X-ray-absorption spectroscopy and scanning photoelectron microscopy}, journal = {Appl. Phys. Lett.}, volume = {82}, year = {2003}, pages = {3949-3951}, author = {J.W. Chiou and J. C. Jan and H. M. Tsai and W.F. Pong* and M.H. Tsai and Hong, I. H. and R. Klauser and J.F. Lee and C. W. Hsu and H. M. Lin and Chen, C. C. and C. H. Shen and L. C. Chen and K. H. Chen} } @article {1523, title = {Electronic structure at the carbon nanotube tips studied by X-ray-absorption spectroscopy and scanning photoelectron microscopy}, journal = {Appl. Phys. Lett.}, volume = {81}, year = {2002}, pages = {4189-4191}, author = {J.W. Chiou and C. L. Yueh and J. C. Jan and H. M. Tsai and W.F. Pong* and Hong, I. H. and R. Klauser and M.H. Tsai and Y.K. Chang and Y.Y. Chen and C. T. Wu and K. H. Chen and S.L. Wei and C.Y. Wen and L. C. Chen and T. J. Chuang} } @article {1515, title = {Field emission of nanostructured amorphous SiCN films deposited by reactive magnetron sputtering of SiC in CH4/N2atmosphere}, journal = {Thin Solid Films}, volume = {416}, year = {2002}, pages = {85-91}, author = {H.Y. Lin and Y. C. Chen and Lin, CY and Y. P. Tong and L.G. Hwa and K. H. Chen and L.C. Chen*} } @article {1493, title = {Electronic structure of the Fe-layer catalyzed carbon nanotubes studies by X-ray-absorption spectroscopy}, journal = {Appl. Phys. Lett.}, volume = {79}, year = {2001}, pages = {3179-3181}, author = {C.L. Yeh and C.J. Jan and J.W. Chiou and W.F. Pong* and M.H. Tsai and Y.K. Chang and Y.Y. Chen and J.F. Lee and P.K. Tseng and S.L. Wei and C.Y. Wen and L. C. Chen and K. H. Chen} } @article {1506, title = {Fabrication and characterization of carbon nanotubes triodes}, journal = {Jpn. J. Appl. Phys.}, volume = {40}, year = {2001}, pages = {3468-3473}, author = {W.K. Hong and K. H. Chen and L. C. Chen and F. G. Tarntair and K. J. Chen and J. B. Lin and H. C. Cheng*} } @article {1508, title = {Fabrication and characterization of low turn-on voltage carbon nanotube field emission triodes}, journal = {Electrochemical and Solid-State Letters}, volume = {4 (8)}, year = {2001}, pages = {H15-17 }, author = {H. C. Cheng* and K. J. Chen and W.K. Hong and F. G. Tarntair and J. B. Lin and K. H. Chen and L. C. Chen} } @article {1510, title = {Field electron emission from C-based emitters and devices}, journal = {New Diamond and Frontier Carbon Technology}, volume = {11}, year = {2001}, pages = {249-263}, author = {L.C. Chen* and W.K. Hong and F. G. Tarntair and K. J. Chen and J. B. Lin and P. D. Kichambare and H. C. Cheng and K. H. Chen} } @article {1502, title = {Field electron emission from carbon-based emitters and devices}, journal = {New Diamond and Frontier Carbon Tech.}, volume = {11}, year = {2001}, pages = {249}, author = {L.C. Chen* and W.K. Hong and F. G. Tarntair and K. J. Chen and J. B. Lin and P. D. Kichambare and H. C. Cheng and K. H. Chen} } @article {1488, title = {Field emission properties of two-layer structured SiCN films}, journal = {Surface \& Coating Tech.}, volume = {137}, year = {2001}, pages = {152-157}, author = {F. G. Tarntair and J.J. Wu and K. H. Chen and C.Y. Wen and L.C. Chen* and H. C. Cheng} } @article {1505, title = {Integration of thin film transistor controlled carbon nanotubes for field-emission devices}, journal = {Electrochemical and Solid-State Letters}, volume = {4 (4)}, year = {2001}, pages = {H5-H7}, author = {H. C. Cheng* and W.K. Hong and F. G. Tarntair and K. J. Chen and J. B. Lin and K. H. Chen and L. C. Chen} } @article {1497, title = {Near-field images of the AgOx super-resolution near-field structure}, journal = {Appl. Phys. Lett.}, volume = {78}, year = {2001}, pages = {685-687}, author = {W.C. Liu, , , , and and C.Y. Wen and K. H. Chen and W.C. Lin and D.P. Tsai*} } @article {1498, title = {X-ray absorption studies of carbon-related materials}, journal = { J. of Synchrotron Radiation}, volume = {8}, year = {2001}, pages = {145-149 }, author = {W.F. Pong* and C.L. Yeh and Y.D. Chang and M.-H. Tsai and Y.K. Chang and Y.Y. Chen and J.F. Lee and S.L. Wei and C.Y. Wen and L. C. Chen and K. H. Chen and I.N. Lin and H.F. Cheng} } @article {1476, title = {Comparative studies in field emission properties of carbon-based materials}, journal = {Diamond \& Related Materials}, volume = {9}, year = {2000}, pages = {1249-1256}, author = {K. H. Chen and J.J. Wu and L. C. Chen and C.-Y. Wen and P. D. Kichambare and F. G. Tarntair and P.F. Kuo and S.W. Chang and Y.F. Chen} } @article {1483, title = {Enhancement in field emission of silicon microtips by bias-assisted carburization}, journal = {J. Vac. Sci. Tech.}, volume = {B18}, year = {2000}, pages = {2722-2729}, author = {P. D. Kichambare and F. G. Tarntair and T.Y. Wang and L. C. Chen and K. H. Chen and H. C. Cheng} } @article {1478, title = {Field emission from quasi-aligned SiCN nanorods}, journal = {Appl. Phys. Lett.}, volume = {76}, year = {2000}, pages = {20}, author = {F. G. Tarntair and C.Y. Wen and L. C. Chen and J.J. Wu and K. H. Chen and P.F. Kuo and S.W. Chang and Y.F. Chen and W.K. Hong and H. C. Cheng} } @article {1485, title = {High current density field emission from arrays of carbon nanotubes and diamond-clad Si tips}, journal = {J. Vac. Sci. Tech}, volume = {B 18}, year = {2000}, pages = {1207-1211}, author = {F. G. Tarntair and L. C. Chen and S.L. Wei and W.K. Hong and K. H. Chen and H. C. Cheng} } @article {1480, title = {Interaction of atomic hydrogen with a Ge(111) surface: LEED and surface Raman studies}, journal = {Surface Science}, volume = {445}, year = {2000}, pages = {139-150}, author = {Su, C. and C.S. Tsai and T.E. Lin and K. H. Chen and Wang, J. K. and Lin, J. C.} } @article {1474, title = {Piezoreflectance study of a Fe-containing silicon carbon nitride crystalline film}, journal = { J. Appl. Phys.}, volume = {87}, year = {2000}, pages = {280-284}, author = {C.H. Hsieh and Y.S. Huang and K.K. Tiong and C.W. Fan and Y.F. Chen and L. C. Chen and J.J. Wu and K. H. Chen} } @article {1482, title = {Piezoreflectance study of silicon carbon nitride nanorods}, journal = {Appl. Phys. Lett.}, volume = {76}, year = {2000}, pages = {2044-2046}, author = {C.H. Hsieh and Y.S. Huang and P.F. Kuo and Y.F. Chen and L. C. Chen and J.J. Wu and K. H. Chen and K.K. Tiong} } @proceedings {1468, title = {Enhancement in Field Emission of Silicon Micro-tips by Bias-assisted Carburization}, journal = {the Appl. Diamond Conference and Frontier Carbon Tech. Joint Conference 1999}, year = {1999}, pages = {353-358}, address = {Tsukuba, Japan}, author = {P. D. Kichambare and F. G. Tarntair and T.Y. Wang and L. C. Chen and K. H. Chen and H. C. Cheng} } @article {1464, title = {High purity nano-crystalline carbon nitride films prepared at ambient temperature by ion beam sputtering}, journal = {Surface and Coatings Technology }, volume = {115}, year = {1999}, pages = {116-122}, author = {T.R. Lu, , , , , and C.T. Kuo* and J.R. Yang and L. C. Chen and K. H. Chen and T.M. Chen} } @article {1460, title = {Quantum confinement effect in diamond nanocrystals studied by X-Ray-absorption spectroscopy}, journal = {Phys. Rev. Lett.}, volume = {82}, year = {1999}, pages = {5377-5380}, author = {Y.K. Chang and H.H. Hsieh and W.F. Pong* and M.-H. Tsai and F.Z. Chien and P.K. Tseng and L. C. Chen and T.Y. Wang and K. H. Chen and D. M. Bhusari and J.R. Yan and S.T. Lin} } @article {1466, title = {Raman Spectroscopic Studies of the Thermal Decomposition of Molybdenum Oxide/2,2{\textquoteright}-Bipyridine Compounds}, journal = {Applied Spectroscopy}, volume = {9}, year = {1999}, pages = {1083}, author = {Jen Twu and Y.Y. Yu and C.W. Tang and G.J. Wang and K. H. Chen} } @article {1472, title = {X-ray-absorption of Si-C-N thin films: acomparison between crystalline and amorphous phases}, journal = {J. Appl. Phys.}, volume = {86}, year = {1999}, pages = {5609-5613}, author = {Y.K. Chang and H.H. Hsieh and W.F. Pong and M.H. Tsai and T.E. Dann and F.Z. Chien and P.K. Tseng and L. C. Chen and S.L. Wei and K. H. Chen and J.J. Wu and Y.F. Chen} } @article {1224, title = {Electronic and Atomic Structures of Si-C-N Thin Film by X-ray-absorption Spectroscopy}, journal = {J. Electron Spectroscopy and Related Pheno.}, volume = {92}, year = {1998}, pages = {115}, author = {W.F. Pong and Y.K. Chang and H.H. Hsieh and M.H. Tsai and K.H. Lee and T.E. Dann and F.Z. Chien and P.K. Tseng and K.L. Tsang and W.K. Su and L. C. Chen and S.L. Wei and K. H. Chen and D. M. Bhusari and Y.F. Chen} } @article {1228, title = {Electronic and Atomic Structures of SiCN Thin Film by X-ray Absorption Spectroscopy and Theoretical Calculations}, journal = { Phys. Rev.}, volume = {B58}, year = {1998}, pages = {9018}, author = {Y.K. Chang and H.H. Hsieh and W.F. Pong and M.H. Tsai and K.H. Lee and T.E. Dann and F.Z. Chien and P.K. Tseng and K.L. Tsang and W.K. Su and L. C. Chen and S.L. Wei and K. H. Chen and D. M. Bhusari and Y.F. Chen} } @article {1230, title = {Synthesis and Characterization of an Organic-inorganic Hybrid Compound: [WO3(2,2{\textquoteright}-bipyridine)]}, journal = {J. Matter. Chem.}, volume = {8}, year = {1998}, pages = {2181}, author = {Wu, J. T. and T.H. Fang and C.F. Hsu and Y.Y. Yu and G.J. Wang and C.W. Tang and K. H. Chen and K.H. Lii} } @article {1214, title = {Traveling wave method for measurement of thermal conductivity of thin films}, journal = {Rev. Sci. Instrum.}, volume = {68(11)}, year = {1997}, pages = {4180-4183}, author = {D. M. Bhusari and C.W. Teng and K. H. Chen and L. C. Chen} } @proceedings {1208, title = {On the Optimized Nucleation of Near-Single-Crystal CVD Diamond Film}, journal = {MRS Symp.}, year = {1996}, pages = {Vol.416, 81 }, author = {L. C. Chen and C.C. Juan and J.Y. Wu and K. H. Chen and J. W. Teng} } @article {1210, title = {The vibrational dephasing and relaxation of CH and CD stretches on diamond surfaces: An anomaly}, journal = {J. Chem. Phys.}, volume = {105}, year = {1996}, pages = {3975-3983}, author = {Lin, J. C. and K. H. Chen and H.C. Chang and C.S. Tsai and C.E. Lin and Wang, J. K.} }