The Effects of Growth Temperature on the Field-Emission Properties of ZnO Nanoneedle Arrays

被引：5
|
作者：
Park, Jae Young [1 ]
Oh, Chang Won [1 ]
Choi, Sun-Woo [1 ]
Kim, Sang Sub [1 ]
机构：
[1] Inha Univ, Sch Mat Sci & Engn, Inchon 402751, South Korea
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2009年 / 92卷 / 12期
关键词：
NANOWIRES; TRANSPORT;
D O I：
10.1111/j.1551-2916.2009.03342.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Field-emission properties of ZnO nanoneedle arrays (NNAs) grown on Pt-coated Si (001) substrates by metalorganic chemical vapor deposition at various growth temperatures were investigated. Growth temperature determines the morphology and alignment of NNAs and hence their field-emission properties. The ZnO NNAs grown at 550 degrees C demonstrated better emission properties compared with ones grown at higher temperatures. ZnO NNAs grown at higher temperatures had sharper tips but were relatively less aligned, resulted in inferior field-emission properties. Optimization of the shape and alignment of ZnO nanoneedles is important to obtain better emission properties.
引用
收藏
页码：2982 / 2986
页数：5
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