Effect of Sn on sensing performance of nanostructured ZnO film

被引：3

作者：

Chang, Yongqin ^{[1
]}

Shao, Changjing ^{[1
]}

Jiang, Nan ^{[1
]}

Wang, Shiqi ^{[1
]}

Zou, Bo ^{[1
]}

Long, Yi ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 10083, Peoples R China

来源：

FUNCTIONAL MATERIALS LETTERS | 2015年 / 8卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Gas sensing; ZnO; Sn; nanostructure film;

D O I：

10.1142/S1793604715400093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured ZnO films were fabricated by chemical vapor deposition (CVD) method with different Sn source concentrations for ethanol and acetone sensing applications. The samples prepared with Sn: ZnO (weight ratio) of 0.1:1, 0.2:1 and 0.3:1 are named as S1, S2 and S3, respectively. It was found that hexagonal wurtzite structure of ZnO is maintained after Sn doping. The S1 sample shows the highest response to acetone, while the S2 sample shows the highest response to ethanol, which confines that the as-grown ZnO films with different Sn source concentrations exhibit obvious selectivity to ethanol and acetone. Working temperature can also be reduced by the increase of Sn source concentration. All the samples have very short average recovery time. Our work provides a prospective approach to obtain high performance gas sensor for ethanol and acetone.

引用

页数：5

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