Synthesis and properties of multipod-shaped ZnO nanorods for gas-sensor applications

被引：305
|
作者：
Gao, T [1 ]
Wang, TH [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2005年 / 80卷 / 07期
关键词：
D O I：
10.1007/s00339-004-3075-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We reported the synthesis and optical properties of ZnO nanorods with multipod shapes, and their applications as gas sensors. The multipod-shaped ZnO (M-ZnO ) nanorods, having tens of needle-like nanorods united at a common junction, exhibited different structural and optical characters from those of the tetrapod-shaped ZnO (T-ZnO) nanorods. Employing the M-ZnO and the T-ZnO nanorods, respectively, gas sensors were prepared and tested for the detection of ethanol in air. It was found that the M-ZnO devices had an improved sensing performance in comparison with that of the T-ZnO sensors, of which a possible sensing mechanism related to a surface reaction process was discussed.
引用
收藏
页码：1451 / 1454
页数：4
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