title: Electrical quadruple hysteresis in Pd-doped vanadium pentoxide nanowires due to water adsorption.
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.
authors.affiliation: Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, Republicof Korea; Present address: Korea Basic Science Institute, Republic of Korea.
authors.forename: Byung Hoon
authors.initials: BH
authors.lastname: Kim
authors.affiliation: Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, Republicof Korea.
authors.forename: Soon-Young
authors.initials: SY
authors.lastname: Oh
authors.affiliation: Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, Republicof Korea.
authors.forename: Han Young
authors.initials: HY
authors.lastname: Yu
authors.affiliation: Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, Republicof Korea; Present address: Korea Basic Science Institute, Republic of Korea.
authors.forename: Won G
authors.initials: WG
authors.lastname: Hong
authors.affiliation: Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, Republicof Korea.
authors.forename: Yong Ju
authors.initials: YJ
authors.lastname: Yun
authors.affiliation: Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, Republicof Korea.
authors.forename: Yark Yeon
authors.initials: YY
authors.lastname: Kim
authors.affiliation: Division of Materials Science, Korea Basic Science Institute, Daejeon 305-333, Republicof Korea.
authors.forename: Hae Jin
authors.initials: HJ
authors.lastname: Kim
keywords: Pd-doped vanadium pentoxide nanowire; electrical quadruple hysteresis; water adsorption