UV-Light-Activated ZnO Fibers for Organic Gas Sensing at Room Temperature

被引：130

作者：

Gong, Jian ^{[1
,2
]}

Li, Yinhua ^{[1
]}

Chai, Xinsheng ^{[1
]}

Hu, Zeshan ^{[1
]}

Deng, Yulin ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[2] NE Normal Univ, Dept Chem, Ke Lab Polyoxometalate, Minist Educ, Changchun 130024, Jilin, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 02期

关键词：

HYDROGEN-PRODUCTION; SENSORS; PHOTODETECTORS; NANOGENERATOR; NANOPARTICLES; ENHANCEMENT; ARRAYS;

D O I：

10.1021/jp906043k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The UV irradiation enhanced ZnO fiber sensors for organic gas detection at room temperature are reported in this paper. It has been well-known that the conductivity Of ZnO fibers will increase when they are exposed to UV irradiation. However, it was found ill this Study that the trend of the conductivity increase Under UV irradiation Could be reversed if the organic gases adsorbed on the ZnO fiber Surface, It was found that a linear relationship exists between the current response and the concentration of the organic gas. The results exhibited simple maneuverability for detecting parts per million concentration of organic gases at room temperature. The possible mechanism of photoconduction Sensing for detecting an organic gas under UV light irradiation at room temperature is also discussed.

引用

页码：1293 / 1298

页数：6

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