Application of Aligned ZnO Nanowires/Nanobelts as a Room Temperature NO Gas Sensor

被引：20

作者：

Kaur, Manmeet ^{[1
]}

Chauhan, Shiv Veer Singh ^{[2
]}

Sinha, Shivangi ^{[2
]}

Bharti, Meetu ^{[3
]}

Mohan, Rajneesh ^{[4
]}

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

Yakhmi, J. V. ^{[1
]}

机构：

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

[2] Amity Inst Nanotechnol, Noida 201301, India

[3] Chaudhry Devilal Univ, Sirsa 125055, Haryana, India

[4] Barkatullah Univ, Dept Phys, Bhopal 462026, MP, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 09期

关键词：

Gas Sensor; NO Gas; Nanowire; Dielectrophoresis; THIN-FILM; SENSITIVITY; HYDROGEN;

D O I：

10.1166/jnn.2009.1118

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gas sensing properties of devices fabricated using ZnO nanowires/nanobelts (NS) aligned between two electrodes using clielectrophoresis technique were investigated. ZnO nanostructures were synthesized by carbothermal method. The devices were characterized as gas sensors and showed high sensitivity for detection of NO gas at room temperature. Typical sensor response, defined as the relative change in resistance, due to the introduction of the gas was found to be similar to 500% for 40 ppm of NO gas. The devices showed average response and recovery times of about 30 s and 1 min respectively. The results demonstrate the potential of fabricating nanosized sensors using single nanowires/nanobelts.

引用

页码：5293 / 5297

页数：5

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