Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks

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

doi:10.1063/1.2384804

Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

29 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 language	English
Article number	183114
Journal	Applied Physics Letters
Volume	89
Issue number	18
DOIs	https://doi.org/10.1063/1.2384804
Publication status	Published - 2006

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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@article{fe44608291e94e478cb442a775f1029f,

title = "Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks",

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.",

author = "Jitae Park and Eunmo Lee and Lee, {Kyu Won} and Lee, {Cheol Eui}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation [user Program of Proton Engineering Frontier Project (PEFP), as a part of the 21C Frontier RD Program and M60504000021-05B0400-02110] and by the Korea Research Foundation (Grant No. KRF-2004-005-C00060 and the Second Brain Korea 21 Project). This work was also supported by the Seoul Research and Business Development Program (Grant No. 10583). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.",

year = "2006",

doi = "10.1063/1.2384804",

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volume = "89",

journal = "Applied Physics Letters",

issn = "0003-6951",

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T1 - Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks

AU - Park, Jitae

AU - Lee, Eunmo

AU - Lee, Kyu Won

AU - Lee, Cheol Eui

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation [user Program of Proton Engineering Frontier Project (PEFP), as a part of the 21C Frontier RD Program and M60504000021-05B0400-02110] and by the Korea Research Foundation (Grant No. KRF-2004-005-C00060 and the Second Brain Korea 21 Project). This work was also supported by the Seoul Research and Business Development Program (Grant No. 10583). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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U2 - 10.1063/1.2384804

DO - 10.1063/1.2384804

M3 - Article

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VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 18

M1 - 183114

ER -

Electrical transport and quasipersistent photocurrent in vanadium oxide nanowire networks

Abstract

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