title: An aqueous solution-based doping strategy for large-scale synthesis of Sb-doped ZnO nanowires.
abstract: An aqueous solution-based doping strategy was developed for controlled doping impurity atoms into a ZnO nanowire (NW) lattice. Through this approach, antimony-doped ZnO NWs were successfully synthesized in an aqueous solution containing zinc nitrate and hexamethylenetetramine with antimony acetate as the dopant source. By introducing glycolate ions into the solution, a soluble antimony precursor (antimony glycolate) was formed and a good NW morphology with a controlled antimony doping concentration was successfully achieved. A doping concentration study suggested an antimony glycolate absorption doping mechanism. By fabricating and characterizing NW-based field effect transistors (FETs), stable p-type conductivity was observed. A field effect mobility of 1.2 cm(2) V(-1) s(-1) and a carrier concentration of 6 × 10(17) cm(-3) were achieved. Electrostatic force microscopy (EFM) characterization on doped and undoped ZnO NWs further illustrated the shift of the metal-semiconductor barrier due to Sb doping. This work provided an effective large-scale synthesis strategy for doping ZnO NWs in aqueous solution.
authors: Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin, USA.
authors: Fei
authors: F
authors: Wang
authors: Jung-Hun
authors: JH
authors: Seo
authors: Dylan
authors: D
authors: Bayerl
authors: Jian
authors: J
authors: Shi
authors: Hongyi
authors: H
authors: Mi
authors: Zhenqiang
authors: Z
authors: Ma
authors: Deyin
authors: D
authors: Zhao
authors: Yichen
authors: Y
authors: Shuai
authors: Weidong
authors: W
authors: Zhou
authors: Xudong
authors: X
authors: Wang