Fabrication of a SnO2 nanowire gas sensor and sensor performance for hydrogen

被引：400

作者：

Wang, B. ^{[1
,2
]}

Zhu, L. F. ^{[1
]}

Yang, Y. H. ^{[1
]}

Xu, N. S. ^{[1
]}

Yang, G. W. ^{[1
]}

机构：

[1] Zhongshan Univ, Sch Phys Sci & Engn, Inst Optoelect & Funct Composite Mat, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[2] Shenzhen Univ, Sch Elect Sci & Technol, Guangzhou 518060, Guangdong, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 17期

关键词：

D O I：

10.1021/jp8003147

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

SnO2 nanowire gas sensors have been fabricated on Cd-Au comb-shaped interdigitating electrodes using thermal evaporation of the mixed powders of SnO2 and active carbon. The self-assembly grown sensors have excellent performance in sensor response to hydrogen concentration in the range of 10 to 1000 ppm. This high response is attributed to the large portion of undercoordinated atoms on the surface of the SnO2 nanowires. The influence of the Debye length of the nanowires and the gap between electrodes in the gas sensor response is examined and discussed.

引用

页码：6643 / 6647

页数：5

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