Effect of Sensitizers on H2S Sensing Properties of ZnO Nanowires

被引：0

作者：

Sharma, Preetam K. ^{[1
]}

Ramgir, Niranjan S. ^{[1
]}

Goyal, C. P. ^{[1
]}

Datta, N. ^{[1
]}

Srivastava, S. ^{[2
]}

Kaur, M. ^{[1
]}

Debnath, A. K. ^{[1
]}

Aswal, D. K. ^{[1
]}

Vijay, Y. K. ^{[2
]}

Gupta, S. K. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Tech Phys Div, Bombay 400085, Maharashtra, India

[2] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India

来源：

2013 INTERNATIONAL CONFERENCE ON ADVANCED NANOMATERIALS AND EMERGING ENGINEERING TECHNOLOGIES (ICANMEET) | 2013年

关键词：

ZnO nanowires; surface modification; multiple sensor array; H2S gas; graphical pattern;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Gas sensing properties of pure and surface modified ZnO nanowires towards H2S gas have been investigated. The hydrothermally grown ZnO nanowires network has been selectively modified with various sensitizers using RF sputtering to generate a 2X7 sensor array. After fabrication, the sensor array device has been investigated for its gas sensing properties. The optimal temperature for H2S sensing has been observed to be 300 degrees C. The maximum sensor response of S=52 was obtained for Au-5.7at% modified ZnO NWs with response and recovery times of 22 sec and 52 min, respectively. Concentration profile at 300 degrees C revealed the same pattern with change in amplitude by changing H2S concentration. The sensor array was able to detect H2S both qualitatively and quantitatively based on the graphical pattern and position of the pattern, respectively.

引用

页码：215 / 217

页数：3

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