期刊
RSC ADVANCES
卷 4, 期 66, 页码 35084-35088出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra06143h
关键词
-
资金
- grant (TRF-CHE-KU Research Grant for New Scholar) from Thailand Research Fund, Commission on Higher Education
- Kasetsart University Research and Development Institute [MRG 5580229]
A novel fabrication of microelectronic nose based on ZnO nanowires and ZnO surface modifications including ZnO-ZnAl2O4 core-shell nanowires and ZnO-Zn2TiO4 core-shell nanowires gas-sensing elements operated at room temperature is reported. By combining vapor-phase transport processes and atomic layer deposition techniques, highly homogeneous core-shell nanowires structures can be successfully obtained on large scale areas. Under ultraviolet illumination of the specific oxide surfaces, photo-stimulated oxygen species (O-2(-) (ads)) respond to and dominate the gas sensing mechanism of the core-shell nanowires at room temperature. Principal component analysis results show the perfect discrimination of gases including toxic gases and non-toxic gases. This novel device can be used to identify both gas types with concentrations in the ppb level at room temperature.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据