title: Controllable assembly of aligned ZnO nanowires/belts arrays.
abstract: We describe a simple method to assemble ZnO nanowires/belts into highly ordered arrays. ZnCu(2) alloy was used as the Zn source, which reacted with water vapor to generate ZnO nanocrystals. The reaction was performed in a mild way, which facilitated the easy control of the reaction conditions. By simply controlling the water bath temperature and carrier gas flux in our experiments, we obtained ZnO nanowires/belts aligned to form ordered arrays. The highly ordered nature of the ZnO arrays is suggested to be related both with the polarities of the H(2)O molecule and the ZnO (0001) surface. Photoluminescence (PL) microscopy revealed that the comblike structures had waveguide properties, where green light enhancement was observed at the tips of the branches. The light enhancement property reveals their promising applications as light source arrays.
authors.affiliation: National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Hongbo
authors.initials: H
authors.lastname: Huang
authors.forename: Shaoguang
authors.initials: S
authors.lastname: Yang
authors.forename: Jiangfeng
authors.initials: J
authors.lastname: Gong
authors.forename: Hongwei
authors.initials: H
authors.lastname: Liu
authors.forename: Junhong
authors.initials: J
authors.lastname: Duan
authors.forename: Xiaoning
authors.initials: X
authors.lastname: Zhao
authors.forename: Rong
authors.initials: R
authors.lastname: Zhang
authors.forename: Yinglin
authors.initials: Y
authors.lastname: Liu
authors.forename: Yichun
authors.initials: Y
authors.lastname: Liu