Do We Need "Ionosorbed" Oxygen Species? (Or, "A Surface Conductivity Model of Gas Sensitivity in Metal Oxides Based on Variable Surface Oxygen Vacancy Concentration")

被引：32

作者：

Blackman, Christopher ^{[1
]}

机构：

[1] UCL, Dept Chem, London WC1H 0AJ, England

来源：

ACS SENSORS | 2021年 / 6卷 / 10期

关键词：

Ionosorption; vacancies; mechanism; chemoresistive; surface conductivity; THIN-FILM; SNO2; CO; CONDUCTANCE; SNO2(110);

D O I：

10.1021/acssensors.1c01727

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The author provides an opinion on direct experimental evidence available to support the "ionosorption theory" often employed to interpret "electrophysical" measurements made during a gas sensing experiment. This article then aims to provide an alternative framework of a "surface conductivity" model based on recent advances in theoretical and experimental investigations in solid state physics, and to use this framework as a guide toward design rules for future improvement of gas sensor performance.

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收藏

页码：3509 / 3516

页数：8

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