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Get Free AccessThe humidity sensitive characteristics of the sensor fabricated from 10 mol% La 2 O 3 doped CeO 2 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 La 2 O 3 doped CeO 2 powder has potential application as high-performance humidity sensor.
Chunjie Wang, Aihua Zhang, Hamid Reza Karimi (2014). Development of La 3+ Doped CeO 2 Thick Film Humidity Sensors. Abstract and Applied Analysis, 2014, pp. 1-6
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Type
Article
Year
2014
Authors
3
Datasets
0
Total Files
0
Language
English
Journal
Abstract and Applied Analysis
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