Basics of oxygen and SnO2 interaction;: work function change and conductivity measurements

被引：151

作者：

Sahm, T. ^{[1
]}

Gurlo, A. ^{[1
]}

Barsan, N. ^{[1
]}

Weimar, U. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys & Theoret Chem, D-72076 Tubingen, Germany

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 118卷 / 1-2期

关键词：

oxygen; SnO2; work function changes;

D O I：

10.1016/j.snb.2006.04.004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The interaction of oxygen and nanocrystalline SnO2 has been investigated by means of simultaneous work function change and resistance measurements. Various oxygen concentrations between 50 ppm and 6000 ppm have been dosed at two different temperatures. At 400 degrees C, only ionic species have been identified. However, at 200 degrees C dipolar species play the major role reflected by a massive decrease in electron affinity. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：78 / 83

页数：6

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