title: Electron transport in high-resistance semiconductor nanowires through two-probe measurements.
abstract: Since the successful fabrication of semiconductor nanowires, various techniques have been developed to contact these nanowires and to probe their intrinsic electrical properties. Although many novel quasi one-dimensional materials such as Pb(1 - x)Mn(x)Se nanoarrays were recently produced, their intrinsic electron transport properties have not been extensively studied so far. In this work, we demonstrate that an ordinary source-drain configuration of field-effect transistors or the two-probe measurement can be applied to the exploration of the intrinsic properties of nanowires. This two-probe measurement approach also works on highly resistive nanowires without an Ohmic contact issue. By using this method, electron transport behavior, resistivity, and carrier concentrations of ZnO, InP, GaP, and Pb(1 - x)Mn(x)Se semiconductor nanowires have been investigated. Due to the tiny cross-section and few conducting channels, a nanomaterial usually reveals an ultra high resistance. This technique demonstrates a two-probe characterization of nanostructures, paving the simplest way toward electrical characterizations of all high-resistance nanomaterials such as deoxyribonucleic acid (DNA), molecules and organics.
authors.affiliation: Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan.
authors.forename: Yen-Fu
authors.initials: YF
authors.lastname: Lin
authors.forename: Tzu-Han
authors.initials: TH
authors.lastname: Chen
authors.forename: Chia-Hung
authors.initials: CH
authors.lastname: Chang
authors.forename: Yu-Wei
authors.initials: YW
authors.lastname: Chang
authors.forename: Yi-Cheng
authors.initials: YC
authors.lastname: Chiu
authors.forename: Hsiang-Chih
authors.initials: HC
authors.lastname: Hung
authors.forename: Ji-Jung
authors.initials: JJ
authors.lastname: Kai
authors.forename: Zhaoping
authors.initials: Z
authors.lastname: Liu
authors.forename: Jiye
authors.initials: J
authors.lastname: Fang
authors.forename: Wen-Bin
authors.initials: WB
authors.lastname: Jian