Effect of Li+ doping on ZrO2-TiO2 humidity sensor

被引：92

作者：

Jain, MK ^{[1
]}

Bhatnagar, MC ^{[1
]}

Sharma, GL ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, Thin Film Lab, New Delhi 110016, India

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1999年 / 55卷 / 2-3期

关键词：

humidity sensor; zirconium titanate; salt doping;

D O I：

10.1016/S0925-4005(99)00047-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Humidity sensors are widely used in domestic and industrial environments. The authors have investigated 0.5ZrO(2)-0.5TiO(2) ceramic for its humidity sensing electrical properties at room temperature. The bulk humidity sensors were prepared by the conventional ceramic method. Salt doping with Li+ ions is found to increase the sensitivity by an order of two, and also improves the linearity. X-ray and scanning electron microscopy (SEM) investigations have established that ZrTiO4 phase grows at a sintering temperature of 1200 degrees C. The abnormal behaviour in humidity sensing characteristics for samples sintered at 1150 degrees C may be due to micropores in between the grains. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：180 / 185

页数：6

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