POLARIZATION EFFECTS IN SNO2 THICK-FILM SINTERED SENSORS

被引：4

作者：

IONESCU, R

VANCU, A

机构：

[1] Institute of Physics and Technology of Materials, Bucharest

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1995年 / 151卷 / 01期

关键词：

D O I：

10.1002/pssa.2211510116

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conductance measurements in thick-film sintered SnO2 samples with Au electrodes show that, besides temperature and the composition of the surrounding atmosphere, the applied de voltage also influences the conductance, both in steady-state and in transient conditions. This is interpreted in terms of the accumulation of a negative space charge (electrons trapped on levels distributed over an energy range in the forbidden gap) at the cathode interface.

引用

页码：135 / 142

页数：8

共 8 条

[1]

BARSAN N, 1994, SENSOR ACTUAT B-CHEM, V18, P466

[2]

GOPEL W, 1994, EUROSENSORS 8

[3] CONDUCTION CONCENTRATION RELATIONSHIP IN CHEMORESISTIVE THICK-FILM SNO2 GAS SENSORS [J].