Development of La3+ Doped CeO2 Thick Film Humidity Sensors
Development of La3+ Doped CeO2 Thick Film Humidity Sensors
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La3掺杂CeO2厚膜湿度传感器的研制
DOI：
10.1155/2014/297632
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发表时间：
2014-03
影响因子：
--
通讯作者：
Karimi, Hamid Reza
中科院分区：
文献类型：
--
作者：
Wang, Chunjie;Zhang, Aihua;Karimi, Hamid Reza
The humidity sensitive characteristics of the sensor fabricated from 10 mol% La2O3doped CeO2nanopowders 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 La2O3doped CeO2powder has potential application as high-performance humidity sensor.
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