The sensitivity of gas sensor based on single ZnO nanowire modulated by helium ion radiation
- Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education, and Department of Physics, Wuhan University, Wuhan 430072 (China)
In this letter, we present a gas sensor using a single ZnO nanowire as a sensing unit. This ZnO nanowire-based sensor has quick and high sensitive response to H{sub 2}S in air at room temperature. It has also been found that the gas sensitivity of the ZnO nanowires could be modulated and enhanced by He{sup +} implantation at an appropriate dose. A possible explanation is given based on the modulation model of the depletion layer.
- OSTI ID:
- 21013746
- Journal Information:
- Applied Physics Letters, Vol. 91, Issue 17; Other Information: DOI: 10.1063/1.2800812; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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