Humidity sensors based on cross-linked poly(ionic liquid)s for low humidity sensing

被引:10
|
作者
Yu, Yunlong [1 ]
Ma, Zhiyan [1 ]
Miao, Xiaoya [1 ]
Cui, Yanyu [1 ]
Song, Yaping [1 ]
Liu, Sen [1 ]
Fei, Teng [1 ]
Zhang, Tong [1 ]
机构
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
Low humidity detection; Humidity sensor; Polyelectrolyte; Ionic liquid; POLYELECTROLYTE; FILM;
D O I
10.1016/j.snb.2023.134840
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Low humidity detection has been a great challenge in the field of humidity sensing. In recent years, polyelectrolytes have been proven to be promising materials for highly sensitive humidity sensors. In this work, crosslinked poly(ionic liquid)s (PILs) were prepared for low humidity detection. The strong hydrophilicity of PILs contributes to humidity sensing while the cross-linked structure guarantees the stability of the sensing film. The optimized sensor shows high response (48.0) in 5-35% RH, with short response/recovery time (1 s/10 s) and a small humidity hysteresis (0.2% RH). The possible sensing mechanism of the sensors was discussed.
引用
收藏
页数:8
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