Abstract and Applied Analysis

Development of La3+ Doped CeO2 Thick Film Humidity Sensors

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.

Article information

Source
Abstr. Appl. Anal., Volume 2014 (2014), Article ID 297632, 6 pages.

Dates
First available in Project Euclid: 2 October 2014

https://projecteuclid.org/euclid.aaa/1412273215

Digital Object Identifier
doi:10.1155/2014/297632

Zentralblatt MATH identifier
07022113

Citation

Wang, Chunjie; Zhang, Aihua; Karimi, Hamid Reza. Development of La 3+ Doped CeO 2 Thick Film Humidity Sensors. Abstr. Appl. Anal. 2014 (2014), Article ID 297632, 6 pages. doi:10.1155/2014/297632. https://projecteuclid.org/euclid.aaa/1412273215

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