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In2O3 nanowire mat devices as high performance NO2 gas sensors

Published online by Cambridge University Press:  01 February 2011

Daihua Zhang ,
Zuqin Liu  and
Chongwu Zhou
Daihua Zhang
Affiliation:
Department of Electrical Engineering - Electrophysics, University of Southern California, Los Angeles, California 90089, U. S. A
Zuqin Liu
Affiliation:
Department of Electrical Engineering - Electrophysics, University of Southern California, Los Angeles, California 90089, U. S. A
Chongwu Zhou
Affiliation:
Department of Electrical Engineering - Electrophysics, University of Southern California, Los Angeles, California 90089, U. S. A
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Abstract

A high sensitive and reliable In2O3 nanowire mat devices are fabricated. Detection of NO2 gas down to ppb levels was achieved. This represents orders-of-magnitude improvement over previously reported metal oxide film or nanowire/nanobelt sensors. Furthermore, this simple device shows certain selectivity to NO2 with other common chemicals such as NH3, O2, CO and H2 around.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 828: Symposium A – Semiconductor Materials for Sensing , 2004 , A2.7
Copyright
Copyright © Materials Research Society 2005

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References

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