Response speed of SnO2-based H2S gas sensors with CuO nanoparticles

被引：307

作者：

Chowdhuri, A ^{[1
]}

Gupta, V

Sreenivas, K

Kumar, R

Mozumdar, S

Patanjali, PK

机构：

[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India

[2] Univ Delhi, Dept Chem, Delhi 110007, India

[3] IPFT, Gurgaon, Haryana, India

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 07期

关键词：

D O I：

10.1063/1.1646760

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

CuO nanoparticles on sputtered SnO2 thin-film surface exhibit a fast response speed (14 s) and recovery time (61 s) for trace level (20 ppm) H2S gas detection. The sensitivity of the sensor (Ssimilar to2.06x10(3)) is noted to be high at a low operating temperature of 130degreesC. CuO nanoparticles on SnO2 allow effective removal of excess adsorbed oxygen from the uncovered SnO2 surface due to spillover of hydrogen dissociated from the H2S-CuO interaction. (C) 2004 American Institute of Physics.

引用

页码：1180 / 1182

页数：3

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