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Title

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

Authors

Kim, Byung Hoon; Oh, Soon-Young; Yu, Han Young; Hong, Won G; Yun, Yong Ju; Kim, Yark Yeon; Kim, Hae Jin

Abstract

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.

Subjects

HYSTERESIS; ADSORPTION (Chemistry); VANADIUM pentoxide; NANOWIRES; ELECTRIC potential

Publication

Science & Technology of Advanced Materials, 2010, Vol 11, Issue 6, p1

ISSN

1468-6996

Publication type

Academic Journal

DOI

10.1088/1468-6996/11/6/065003

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