取向氧化锌纳米线/带阵列的可控组装

Controllable assembly of aligned ZnO nanowires/belts arrays.

作者信息

Huang Hongbo, Yang Shaoguang, Gong Jiangfeng, Liu Hongwei, Duan Junhong, Zhao Xiaoning, Zhang Rong, Liu Yinglin, Liu Yichun

机构信息

National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China.

出版信息

J Phys Chem B. 2005 Nov 10;109(44):20746-50. doi: 10.1021/jp054239j.

DOI:10.1021/jp054239j

PMID:16853689

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.

摘要

我们描述了一种将氧化锌纳米线/纳米带组装成高度有序阵列的简单方法。使用ZnCu₂合金作为锌源，其与水蒸气反应生成氧化锌纳米晶体。该反应以温和的方式进行，便于轻松控制反应条件。通过在我们的实验中简单地控制水浴温度和载气通量，我们获得了排列成有序阵列的氧化锌纳米线/纳米带。氧化锌阵列的高度有序性质被认为与水分子和氧化锌（0001）表面的极性都有关。光致发光（PL）显微镜显示，梳状结构具有波导特性，在分支的尖端观察到绿光增强。光增强特性揭示了它们作为光源阵列的潜在应用前景。