Atomistic structure of band-tail states in amorphous silicon

被引:121
作者
Dong, JJ [1 ]
Drabold, DA [1 ]
机构
[1] Ohio Univ, Dept Phys & Astron, Condensed Matter & Surface Sci Program, Athens, OH 45701 USA
关键词
D O I
10.1103/PhysRevLett.80.1928
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We compute accurate approximations of the electronic states near the gap in a very large and realistic model of a-Si. The spatial structure of the states is computed explicitly and discussed. The character of the local to the extended (Anderson) transition in amorphous Si is described. The density of states, the conductivity, and doping are discussed.
引用
收藏
页码:1928 / 1931
页数:4
相关论文
共 22 条
  • [1] BAND TAILS IN HYDROGENATED AMORPHOUS-SILICON AND SILICON-GERMANIUM ALLOYS
    ALJISHI, S
    COHEN, JD
    JIN, S
    LEY, L
    [J]. PHYSICAL REVIEW LETTERS, 1990, 64 (23) : 2811 - 2814
  • [2] ALLAN DC, 1984, PHYSICS HYDROGENATED, V2, P5
  • [3] ABSENCE OF DIFFUSION IN CERTAIN RANDOM LATTICES
    ANDERSON, PW
    [J]. PHYSICAL REVIEW, 1958, 109 (05): : 1492 - 1505
  • [4] ARIAENSSENS G, 1997, NATO ASI SER, P437
  • [5] ELECTRONIC-STRUCTURE OF DANGLING AND FLOATING BONDS IN AMORPHOUS-SILICON
    BISWAS, R
    WANG, CZ
    CHAN, CT
    HO, KM
    SOUKOULIS, CM
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (14) : 1491 - 1494
  • [6] COMPUTER-MODEL OF TETRAHEDRAL AMORPHOUS DIAMOND
    DJORDJEVIC, BR
    THORPE, MF
    WOOTEN, F
    [J]. PHYSICAL REVIEW B, 1995, 52 (08): : 5685 - 5689
  • [7] DONG J, UNUB
  • [8] Band-tail states and the localized-to-extended transition in amorphous diamond
    Dong, JJ
    Drabold, DA
    [J]. PHYSICAL REVIEW B, 1996, 54 (15) : 10284 - 10287
  • [9] FINITE-TEMPERATURE PROPERTIES OF AMORPHOUS-SILICON
    DRABOLD, DA
    FEDDERS, PA
    KLEMM, S
    SANKEY, OF
    [J]. PHYSICAL REVIEW LETTERS, 1991, 67 (16) : 2179 - 2182
  • [10] MAXIMUM-ENTROPY APPROACH FOR LINEAR SCALING IN THE ELECTRONIC-STRUCTURE PROBLEM
    DRABOLD, DA
    SANKEY, OF
    [J]. PHYSICAL REVIEW LETTERS, 1993, 70 (23) : 3631 - 3634