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：31
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.
引用
收藏
页码：3509 / 3516
页数：8
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