Nature of gas sensitivity in nanocrystalline metal oxides

被引：57

作者：

Gas'kov, AM ^{[1
]}

Rumyantseva, MN ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2001年 / 74卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1023/A:1012793527799

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Problems associated with developing gas-sensitive inorganic materials are discussed. The principle of operation of a semiconductor gas sensor of resistive type is considered, and main band structure parameters sensitive to the gas phase composition are determined. Ways to solve the problem of selectivity of semiconducting oxides are discussed. The influence of microstructure, dopants, and analysis temperature is looked into on the basis of experimental results obtained in studying nanocrystalline tin dioxide and zinc oxide. Prospects for use of systems based on two or more nanocrystalline oxides (nanocomposites) are considered.

引用

页码：440 / 444

页数：5

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