Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks

被引：34

作者：

Park, Jitae

Lee, Eunmo

Lee, Kyu Won

Lee, Cheol Eui ^{[1
]}

机构：

[1] Korea Univ, Dept Phys, Seoul 136713, South Korea

[2] Korea Univ, Inst Nano Sci, Seoul 136713, South Korea

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 18期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1063/1.2384804

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electrical conductivity and photoconductivity measurements were carried out on semiconducting vanadium oxide nanowire networks synthesized through the polycondensation of vanadic acid. The temperature-dependent conductivity was described well by Mott's optical multiphonon assisted hopping model at high temperatures and by the variable-range hopping mechanism at low temperatures. The photoconductivity showed a weak temperature dependence. Besides, quasipersistent photocurrent with a single-exponential decay behavior was observed right after switching off the light and was explained in terms of the random local-potential fluctuation model. (c) 2006 American Institute of Physics.

引用

页数：3

共 15 条

[1]

[Anonymous], ELECT PROCESSES NONC

[2]

BOTTGEAND H, 1985, HOPPING CONDUCTION S, P34103

[3] SEMICONDUCTING PROPERTIES OF AMORPHOUS V2O5 LAYERS DEPOSITED FROM GELS [J].