Hydrothermal Synthesis and Field Enhancement Behavior of ZnO Nanorods Pattern

作     者：汤儆 杜琳 庞文辉 郑晶晶 田小春 庄金亮 

作者机构：福州大学化学化工学院教育部暨福建省食品安全和分析检测重点实验室福州350108 法兰克福大学无机及分析化学研究所法兰克福60325 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2011年第24卷第6期

页      面：753-758,I0004页

核心收录：

学科分类：07[理学] 

基　　金：National Natural Science Foundation of China [20873112  21073038] 

主　　题：Heterogeneous nucleation ZnO nanorods pattern Selective growth Field enhancement 

摘      要：We provide a new way to prepare ZnO nanorods pattern from the solution composed of hexamethylenetetramine （HMT） and Zn（NO3）2. The substrate is ITO substrate covered by well ordered Au islands. Since Au and the underneath ITO substrate have two different nucleation rates in the initial stage of heterogeneous nucleation process, the subsequent ZnO growth on the quick nucleating area takes place under diffusion control and is able to confine the synthesis of ZnO nanorods to specific locations. The concentrations of zinc nitrate and HMT are well adjusted to show the possibility of the new route for the patterning of the ZnO nanorods. Furthermore, the nanorods pattern was characterized by X-ray diffraction and photoluminescence and the performance of field emission property from ZnO nanorod patterns was investigated. The ZnO nanorods pattern with a good alignment also shows a good field enhancement behavior with a high value of the field enhancement factor.