Effects of thermal treatments on the conductance of tin oxide

被引：14

作者：

Castro, MS ^{[1
]}

Aldao, CM ^{[1
]}

机构：

[1] Univ Mar del Plata, Inst Mat Sci & Technol, CONICET, INTEMA, RA-7600 Mar Del Plata, Argentina

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2000年 / 20卷 / 03期

关键词：

electrical conductivity; grain boundaries; sensors; SnO2;

D O I：

10.1016/S0955-2219(99)00167-3

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Temperature dependence of electrical conductivity during heating and cooling under different atmospheres and resistivity transients at step isothermal changes in oxygen pressure of SnO2 sintered pellets are investigated. It is found that different thermal treatments in sample preparation give rise to diverse conductivity behaviors as a function of temperature and transient responses. These results indicate that grain sizes and widths of the depletion layers are responsible for the observed results. Also, oxygen diffusion into the tin oxide grain plays a significant role accounting for the observed conductance changes. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：303 / 307

页数：5

共 14 条

[1] Influence of frozen distributions of oxygen vacancies on tin oxide conductance [J].

Blaustein, G ;

Castro, MS ;

Aldao, CM .

SENSORS AND ACTUATORS B-CHEMICAL, 1999, 55 (01) :33-37

[2] INFLUENCE OF MICROSTRUCTURES ON THE FUNCTIONAL-PROPERTIES OF TIN OXIDE-BASED GAS SENSORS [J].

BOTTER, R ;

ASTE, T ;

BERUTO, D .

SENSORS AND ACTUATORS B-CHEMICAL, 1994, 22 (01) :27-35

[3] COOLING RATE EFFECTS IN ZNO VARISTORS [J].

CASTRO, MS ;

PERISSINOTTI, L ;

ALDAO, CM .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 1992, 3 (04) :218-221

[4] SURFACE-CHEMISTRY OF TIN OXIDE-BASED GAS SENSORS [J].

GAGGIOTTI, G ;

GALDIKAS, A ;

KACIULIS, S ;

MATTOGNO, G ;

SETKUS, A .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (08) :4467-4471

[5] ARE MODULATIONS OF THE SCHOTTKY SURFACE-BARRIER THE ONLY EXPLANATION FOR THE GAS-SENSING EFFECTS IN SINTERED SNO2 [J].

IONESCU, R ;

MOISE, C ;

VANCU, A .

APPLIED SURFACE SCIENCE, 1995, 84 (03) :291-297

[6] Application of nano-crystalline porous tin oxide thin film for CO sensing [J].

Jin, ZH ;

Zhou, HJ ;

Jin, ZL ;

Savinell, RF ;

Liu, CC .

SENSORS AND ACTUATORS B-CHEMICAL, 1998, 52 (1-2) :188-194

[7]

KANAMORI M, 1995, NIPPON SERAM KYO GAK, V103, P113, DOI 10.2109/jcersj.103.113

[8] ANALYSIS OF THE CHANGE IN THE CARRIER CONCENTRATION OF SAO(2) THIN-FILM GAS SENSOR [J].

KANAMORI, M ;

SUZUKI, E ;

OHYA, Y ;

TAKAHASHI, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1994, 33 (12A) :6680-6683

[9]

MADOU MJ, 1989, CHEM SENSING SOLID S, P6

[10] Solid state gas sensors [J].

Moseley, PT .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1997, 8 (03) :223-237

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