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Highly Sensitive and Stable Low Humidity Sensors Based on Polymeric Ionic Liquid and Polybenzimidazole Composites

In this work, the polymeric ionic liquid (PIL)/ polybenzimidazole (PBI) composites (PIL/PBIs) based humidity sensors were prepared. The humidity sensing properties of the sensors were controlled by the ratio of PIL and PBI in the sensing films, and the optimized sensor performs a high response of 98...

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Bibliographic Details
Published in:IEEE electron device letters 2024-04, Vol.45 (4), p.685-688
Main Authors: Song, Yaping, Ma, Zhiyan, Cui, Yanyu, Miao, Xiaoya, Yu, Yunlong, Wu, Ke, Zhao, Hongran, Liu, Sen, Fei, Teng, Zhang, Tong
Format: Article
Language:English
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Summary:In this work, the polymeric ionic liquid (PIL)/ polybenzimidazole (PBI) composites (PIL/PBIs) based humidity sensors were prepared. The humidity sensing properties of the sensors were controlled by the ratio of PIL and PBI in the sensing films, and the optimized sensor performs a high response of 988.1 in the low humidity range (2%−35% RH). The introduction of PBI into sensing film can guarantee the stability of the humidity sensors. The as-prepared sensor can be utilized to detect the moisture in lubricating oil.
ISSN:0741-3106
1558-0563
DOI:10.1109/LED.2024.3368551