Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks

Jitae Park, Eunmo Lee, Kyu Won Lee, Cheol Eui Lee

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25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number183114
JournalApplied Physics Letters
Volume89
Issue number18
DOIs
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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