Quantum confinement and electronic properties of silicon nanowires

Citation:
Zhao, XY, Wei CM, Yang L, Chou MY.  2004.  Quantum confinement and electronic properties of silicon nanowires, Jun. Physical Review Letters. 92:4., Number 23

Abstract:

We investigate the structural, electronic, and optical properties of hydrogen-passivated silicon nanowires along [110] and [111] directions with diameter d up to 4.2 nm from first principles. The size and orientation dependence of the band gap is investigated and the local-density gap is corrected with the GW approximation. Quantum confinement becomes significant for d<2.2 nm, where the dielectric function exhibits strong anisotropy and new low-energy absorption peaks start to appear in the imaginary part of the dielectric function for polarization along the wire axis.

Notes:

ISI Document Delivery No.: 828GNTimes Cited: 234Cited Reference Count: 22Cited References: Ma DDD, 2003, SCIENCE, V299, P1874, DOI 10.1126/science.1080313 ZHAO Y, 2003, PHYS REV LETT, V91, P35501 Katz D, 2002, PHYS REV LETT, V89 Cui Y, 2001, APPL PHYS LETT, V78, P2214, DOI 10.1063/1.1363692 Cui Y, 2001, SCIENCE, V291, P851, DOI 10.1126/science.291.5505.851 Duan XF, 2001, NATURE, V409, P66, DOI 10.1038/35051047 Landman U, 2000, PHYS REV LETT, V85, P1958, DOI 10.1103/PhysRevLett.85.1958 Duan XF, 2000, APPL PHYS LETT, V76, P1116, DOI 10.1063/1.125956 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 Xia JB, 1997, PHYS REV B, V55, P15688, DOI 10.1103/PhysRevB.55.15688 DELLEY B, 1995, APPL PHYS LETT, V67, P2370, DOI 10.1063/1.114348 YEH CY, 1994, PHYS REV B, V50, P14405, DOI 10.1103/PhysRevB.50.14405 DELERUE C, 1993, PHYS REV B, V48, P11024, DOI 10.1103/PhysRevB.48.11024 HYBERTSEN MS, 1993, PHYS REV B, V48, P4608, DOI 10.1103/PhysRevB.48.4608 BUDA F, 1992, PHYS REV LETT, V69, P1272, DOI 10.1103/PhysRevLett.69.1272 READ AJ, 1992, PHYS REV LETT, V69, P1232, DOI 10.1103/PhysRevLett.69.1232 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 CANHAM LT, 1990, APPL PHYS LETT, V57, P1046, DOI 10.1063/1.103561 COHEN ML, 1988, ELECT STRUCTURE OPTI HYBERTSEN MS, 1986, PHYS REV B, V34, P5390, DOI 10.1103/PhysRevB.34.5390Zhao, XY Wei, CM Yang, L Chou, MYAMERICAN PHYSICAL SOCCOLLEGE PK

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