Liquid-petroleum-gas sensor based on a spinel semiconductor, ZnGa2O4

被引：70

作者：

Satyanarayana, L ^{[1
]}

Reddy, CPG ^{[1
]}

Manorama, SV ^{[1
]}

Rao, VJ ^{[1
]}

机构：

[1] Indian Inst Chem Technol, Mat Sci Grp, Hyderabad 500007, Andhra Pradesh, India

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 46卷 / 01期

关键词：

ZnGa2O4; palladium; LPG; sensitivity; selectivity;

D O I：

10.1016/S0925-4005(97)00313-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A liquid-petroleum gas sensor has been developed with high selectivity and sensitivity based on an oxygen deficient spinel semiconductor, ZnGa2O4. The operating temperature of the sensor element has been optimised under different operating conditions. Palladium doped zinc gallate sensor, on exposure to LPG at about 320 degrees C showed a change of 4-5 orders in the resistance. The response time also decreases from about 20 min in virgin ZnGa2O4 to less than 1 min in the palladium doped element. The electronic interaction between additive and semiconductor is proposed to account for the sensitisation effects in the sensor element. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：1 / 7

页数：7

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