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2014 Development of La3+ Doped CeO2 Thick Film Humidity Sensors
Chunjie Wang, Aihua Zhang, Hamid Reza Karimi
Abstr. Appl. Anal. 2014: 1-6 (2014). DOI: 10.1155/2014/297632

Abstract

The humidity sensitive characteristics of the sensor fabricated from 10 mol% La2O3 doped CeO2 nanopowders with particle size 17.26 nm synthesized via hydrothermal method were investigated at different frequencies. It was found that the sensor shows high humidity sensitivity, rapid response-recovery characteristics, and narrow hysteresis loop at 100 Hz in the relative humidity range from 11% to 95%. The impedance of the sensor decreases by about five orders of magnitude as relative humidity increases. The maximum humidity hysteresis is about 6% RH, and the response and recovery time is 12 and 13 s, respectively. These results indicate that the nanosized La2O3 doped CeO2 powder has potential application as high-performance humidity sensor.

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Chunjie Wang. Aihua Zhang. Hamid Reza Karimi. "Development of La3+ Doped CeO2 Thick Film Humidity Sensors." Abstr. Appl. Anal. 2014 1 - 6, 2014. https://doi.org/10.1155/2014/297632

Information

Published: 2014
First available in Project Euclid: 2 October 2014

zbMATH: 07022113
Digital Object Identifier: 10.1155/2014/297632

Rights: Copyright © 2014 Hindawi

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