FINITE-TEMPERATURE PROPERTIES OF AMORPHOUS-SILICON
FINITE-TEMPERATURE PROPERTIES OF AMORPHOUS-SILICON
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DOI:
10.1103/physrevlett.67.2179
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发表时间:
1991-10-14
影响因子:
8.6
通讯作者:
SANKEY, OF
中科院分区:
文献类型:
--
作者:
DRABOLD, DA;FEDDERS, PA;SANKEY, OF
Ab initio local-orbital quantum molecular dynamics is used to study the finite-temperature properties of amorphous silicon. Using two structural models of a-Si with 63 and 216 atoms, we examine the structure and temperature dependence of conduction and valence band tails. An explanation is suggested for the recent experimental observations of an asymmetry in the temperature dependence of the band-tail widths of the conduction and valence bands in a-Si. Finally, we connect these simulations to other theoretical descriptions of band tailing.