Stability of SnO2/Fe2O3 multilayer thin film gas sensor

被引：26

作者：

Jiao, Z ^{[1
]}

Wang, SY ^{[1
]}

Bian, LF ^{[1
]}

Liu, JH ^{[1
]}

机构：

[1] Chinese Acad Sci, Hefei Inst Intelligent Machines, Hefei 230031, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2000年 / 35卷 / 05期

基金：

中国国家自然科学基金;

关键词：

multilayers; thin films; interfaces; sol-gel chemistry;

D O I：

10.1016/S0025-5408(00)00264-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SnO2/Fe2O3 multilayer thin film was prepared by sol-gel technique and analyzed by scanning electron microscopy (SEM), transmission electron miscroscopy (TEM), and atomic emission spectroscopy (AES), The gas-sensitive characteristics of the SnO2/Fe2O3 mull ilayer thin film was investigated. The SnO2/Fe2O3 thin film exhibited improved selectivity and stability, but slightly reduced sensitivity, compared with SnO2 and Fe2O3 thin films. The existence of an interfacial transition layer between the SnO2 layer and the Fe2O3 layer and the stabilization mechanism of the SnO2/Fe2O3 multilayer thin film are discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：741 / 745

页数：5