Laser sintering ZnO thick films for gas sensor application

被引：10

作者：

Zhu, Bai Lin ^{[1
]}

Xie, Chang Sheng

Wang, Ai Hua

Wu, Jun

Wu, Run

Liu, Jing

机构：

[1] Wuhan Univ Sci & Technol, Key Lab Hubei Prov Ceram & Refractories, Wuhan 430081, Peoples R China

[2] Wuhan Univ Sci & Technol, Nanomat Ctr, Wuhan 430081, Peoples R China

[3] Huazhong Univ Sci & Technol, Dept Mat Sci & Engn, Wuhan 430074, Hubei, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2007年 / 42卷 / 14期

关键词：

D O I：

10.1007/s10853-006-0768-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thick films based on ZnO nanoparticles were prepared by laser sintering with different powers and sintering times for the first time. The microstructure of laser-sintered films was observed by SEM, and their resistance and sensitivity to VOCs as a function of temperature were measured, and compared with the unsintered thick films. The results showed that the laser-sintered ZnO thick films had higher sensitivity than that of the unsintered films. In all. the laser-sintered ZnO thick films, the films sintered at shorter sintering time had the higher sensitivity at the same power, and the sensitivity of the films could be further improved with increasing laser power from 60 to 70 W. The differences in resistance and sensitivity were probably due to the fact that the microstructure of the films and stoichiometric proportion of ZnO changed with the laser power and sintering time.

引用

页码：5416 / 5420

页数：5

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