A humidity sensor based on KCl-doped SnO2 nanofibers

被引：157

作者：

Song, Xiaofeng ^{[1
]}

Qi, Qi ^{[2
]}

Zhang, Tong ^{[2
]}

Wang, Ce ^{[1
]}

机构：

[1] Jilin Univ, Alan G Macdiarmid Inst, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2009年 / 138卷 / 01期

关键词：

Electrospinning; KCl; SnO2; Humidity sensor; CERAMIC THIN-FILMS; TIN OXIDE; GAS SENSORS; SENSING PROPERTIES; GEL; NANOSENSORS; MECHANISM;

D O I：

10.1016/j.snb.2009.02.027

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A fast, simple and reliable humidity sensor based on ion-doped SnO2 nanofibers has been developed by screen-printing on ceramic substrates with Ag-Pd interdigital electrodes in this research. The optimized results show that the impedance of the sensor decreases by more than five orders of magnitude with increasing relative humidity (RH) from 11% to 95%, the response and recovery time of the sensor are about 5 and 6s, respectively. Compared to the previous electrical conductivity-based SnO2 humidity sensors, the proposed sensor exhibits higher humidity sensitivity, more rapid response and recovery, smaller hysteresis, and better linearity and stability. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：368 / 373

页数：6

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