Electrical quadruple hysteresis in Pd-doped vanadium pentoxide nanowires due to water adsorption

Humidity-dependent current-voltage (I-V) characteristics of Pd-doped vanadium pentoxide nanowires (Pd-VONs) were investigated. Electrical quadruple hysteresis (QH) was observed and attributed to the large amount of water molecules adsorbed on the nanowires. Using QH in Pd-VONs, the reaction of water...

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Bibliographic Details
Published in:Science and technology of advanced materials 2010-12, Vol.11 (6), p.065003-065003
Main Authors: Kim, Byung Hoon, Oh, Soon-Young, Yu, Han Young, Hong, Won G, Yun, Yong Ju, Kim, Yark Yeon, Kim, Hae Jin
Format: Article
Language:English
Subjects:
electrical quadruple hysteresis
Pd-doped vanadium pentoxide nanowire
water adsorption
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Summary:Humidity-dependent current-voltage (I-V) characteristics of Pd-doped vanadium pentoxide nanowires (Pd-VONs) were investigated. Electrical quadruple hysteresis (QH) was observed and attributed to the large amount of water molecules adsorbed on the nanowires. Using QH in Pd-VONs, the reaction of water with PdO was interpreted as the water molecules are desorbed and then dissociated with increasing bias voltage. Owing to the dissociated H + and OH − ions, PdO is reduced and oxidized. As a result, water molecules recombine as the bias voltage is decreased.
ISSN:1468-6996
1878-5514
DOI:10.1088/1468-6996/11/6/065003