A novel highly reversible humidity sensor based on poly(2-propyn-2-furoate)

被引：43
作者：
Li, Y [1 ]
Yang, MJ [1 ]
机构：
[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2002年 / 86卷 / 2-3期
关键词：
humidity sensor; poly(2-propyn-2-furoate); hysteresis; humidity sensitive property;
D O I：
10.1016/S0925-4005(02)00159-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Thin film humidity sensors were prepared with salt-doped poly(2-propyn-2-furoate) (PPF). The humidity sensitive properties of the sensors have been investigated by measuring the complex impedance spectroscopy at different relative humidities (RHs). Both impedance and capacitance of the sensors change 3-4 orders of magnitude from 33 to 97% RH, and no hysteresis is observed. In addition, the capacitance responses exhibit good linearity for PPF doped with LiCl (R-2 = 0.9995) and FeCl3 (R-2 = 0.9996) over a wide humidity range. It is proposed that the highly reversible impedance and capacitance responses are related to the furan ring in PPF. (C) 2002 Elsevier Science B.V. All rights reserved.
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收藏
页码：155 / 159
页数：5
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