6533b7dbfe1ef96bd1271230

RESEARCH PRODUCT

Development of La3+ Doped CeOthick film humidity sensors

Chunjie WangAihua ZhangHamid Reza Karimi

subject

Applied MathematicsVDP::Mathematics and natural science: 400::Chemistry: 440::Theoretical chemistry quantum chemistry: 444Analysis; Applied MathematicsVDP::Mathematics and natural science: 400::Mathematics: 410::Analysis: 411Analysis

description

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 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.

10.1155/2014/297632http://hdl.handle.net/11250/227802