Nanocomposites of carbon nanotubes and silicone-containing polyelectrolyte as a candidate for construction of humidity sensor

被引：29
作者：
Li, Y [1 ]
Yang, MJ [1 ]
Chen, Y [1 ]
机构：
[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 01期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1007/s10853-005-5719-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The synthesis of nanocomposites of carbon nanotubes and a silicone-containing polyelectrolyte, to prepare humidity sensors, was investigated. The humidity responses of the sensors were measured using an in-house built electric circuit at f = 1 kHz, and constant humidities were provided by using different saturated salt solution. The sensor based on the polyelectrolyte exhibited a linear response towards humidity change in semi-logarithmic scale, but the impedance was observed to be about 2.2×107 ω at a low humidity of 33%RH. The results show that formation of nanocomposites of carbon nanotubes with polymer humidity sensitive materials can effectively decrease the impedance of the resistive-type humidity sensors.
引用
收藏
页码：245 / 247
页数：3
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