Development of La3+ Doped CeOthick film humidity sensors
Journal article, Peer reviewed
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Original versionWang, C., Zhang, A., & Karimi, H. R. (2014). Development of La3+ Doped CeOthick film humidity sensors. Abstract and Applied Analysis, 2014, 1-6. doi: 10.1155/2014/297632 10.1155/2014/297632
The humidity sensitive characteristics of the sensor fabricated from 10 mol% Ladoped CeOnanopowders 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 Ladoped CeOpowder has potential application as high-performance humidity sensor.
Published version of an article in the journal: Abstract and Applied Analysis. Also available from the publisher at: http://dx.doi.org/10.1155/2014/297632 Open Access