Investigations on the Sensing Mechanism of Humidity Sensors Based on Poly(4-vinylpyridine)/carbon Black Composite by AC Impedance Spectra

作     者：Hong Li-jie, Li Yang, Yang Mu-jie(Department of Polymer Science and Engineering, Zhejiang University,Hangzhou 310027, China) 

作者机构：Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 

出 版 物：《复旦学报（自然科学版）》 (Journal of Fudan University：Natural Science)

年 卷 期：2007年第46卷第5期

页      面：796-页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 

主　　题：sensing mechanism poly(4-vinylpyridine) carbon black AC impedance spectra 

摘      要：1 Results Investigations on the sensing mechanism is important for understanding the electrical responses of humidity sensors to humidity change,and could provide guidelines for the design and synthesis of humidity sensitive materials with desirable *** this work,the sensing mechanism of humidity sensors based on quaternized poly(4-vinylpyridine) (PVP)/carbon black (CB) composite[1] was studied by measuring their AC impedance spectra at various humidities at room *** low humidity...