@article {1424,
	title = {Enhanced electron-hole interaction and optical absorption in a silicon nanowire},
	journal = {Physical Review B},
	volume = {75},
	number = {20},
	year = {2007},
	note = {<p>ISI Document Delivery No.: 173RTTimes Cited: 20Cited Reference Count: 28Cited References:      COHEN ML, 2008, ELECT STRUCTURE OPTI     Bruno M, 2007, PHYS REV LETT, V98     Park CH, 2006, PHYS REV LETT, V96, DOI 10.1103/PhysRevLett.96.126105     Wirtz L, 2006, PHYS REV LETT, V96, DOI 10.1103/PhysRevLett.96.126104     Sirbuly DJ, 2005, J PHYS CHEM B, V109, P15190, DOI 10.1021/jp051813i     Wang F, 2005, SCIENCE, V308, P838, DOI 10.1126/science.1110265     PALUMMO M, 2005, PHYS REV B, V72     Kholod AN, 2004, PHYS REV B, V70, DOI 10.1103/PhysRevB.70.035317     Zhao XY, 2004, PHYS REV LETT, V92, DOI 10.1103/PhysRevLett.92.236805     Chang E, 2004, PHYS REV LETT, V92, DOI 10.1103/PhysRevLett.92.196401     Spataru CD, 2004, PHYS REV LETT, V92, DOI 10.1103/PhysRevLett.92.077402     WU, 2004, NANO LETT, V4, P433     Marinopoulos AG, 2003, PHYS REV LETT, V91, DOI 10.1103/PhysRevLett.91.256402     Machon M, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.155410     Vasiliev I, 2001, PHYS REV LETT, V86, P1813, DOI 10.1103/PhysRevLett.86.1813     Cui Y, 2001, SCIENCE, V291, P851, DOI 10.1126/science.291.5505.851     Duan XF, 2001, NATURE, V409, P66, DOI 10.1038/35051047     Rohlfing M, 2000, PHYS REV B, V62, P4927, DOI 10.1103/PhysRevB.62.4927     Holmes JD, 2000, SCIENCE, V287, P1471, DOI 10.1126/science.287.5457.1471     Morales AM, 1998, SCIENCE, V279, P208, DOI 10.1126/science.279.5348.208     Ando T, 1997, J PHYS SOC JPN, V66, P1066, DOI 10.1143/JPSJ.66.1066     SANDERS GD, 1992, PHYS REV B, V45, P9202, DOI 10.1103/PhysRevB.45.9202     TROULLIER N, 1991, PHYS REV B, V43, P1993, DOI 10.1103/PhysRevB.43.1993     HYBERTSEN MS, 1986, PHYS REV B, V34, P5390, DOI 10.1103/PhysRevB.34.5390     DELCASTILLOMUSSOT M, 1985, PHYS REV B, V31, P2092, DOI 10.1103/PhysRevB.31.2092     STRINATI G, 1984, PHYS REV B, V29, P5718, DOI 10.1103/PhysRevB.29.5718     HANKE W, 1979, PHYS REV LETT, V43, P387, DOI 10.1103/PhysRevLett.43.387     KOHN W, 1965, PHYS REV, V140, P1133Yang, Li Spataru, Catalin D. Louie, Steven G. Chou, M. Y.AMER PHYSICAL SOCCOLLEGE PK</p>
},
	month = {May},
	pages = {4},
	type = {Article},
	abstract = {<p>We present a first-principles study of the correlated electron-hole states in a silicon nanowire of a diameter of 1.2 nm and their influence on the optical absorption spectrum. The quasiparticle states are calculated employing a many-body Green{\textquoteright}s function approach within the GW approximation to the electron self-energy, and the effects of the electron-hole interaction to optical excitations are evaluated by solving the Bethe-Salpeter equation. The enhanced Coulomb interaction in this confined geometry results in an unusually large binding energy (1-1.5 eV) for the excitons, which dominate the optical absorption spectrum.</p>
},
	keywords = {BUILDING-BLOCKS, CARBON NANOTUBES, DEVICES, EXCITATIONS, EXCITONS, GAPS, RESONANCES, SEMICONDUCTOR NANOWIRES, SPECTRA},
	isbn = {1098-0121},
	url = {<Go to ISI>://WOS:000246890900007},
	author = {Yang, L. and Spataru, C. D. and Louie, S. G. and Chou, M. Y.}
}
