Micro-humidity sensors based on a processable polyaniline blend

被引：83

作者：

McGovern, ST ^{[1
]}

Spinks, GM ^{[1
]}

Wallace, GG ^{[1
]}

机构：

[1] Univ Wollongong, Intelligent Polymer Res Inst, Wollongong, NSW 2522, Australia

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2005年 / 107卷 / 02期

关键词：

humidity sensor; polyaniline; resistance; stability;

D O I：

10.1016/j.snb.2004.11.046

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polyaniline was blended with either polyvinyl alcohol or a butyl acrylate/vinyl acetate copolymer and used as a sensing medium in the construction of a resistance-based humidity sensor. The design utilised 125 mu m polyester-insulated platinum wire as conducting electrodes that were dip-coated in conducting polymer. The sensors had an overall final thickness of less than 150 mu m and showed high sensitivity, low resistance, and good reversibility without hysteresis. Some drift in the response was attributed to slow oxidation of the polyaniline that could be reduced by the application of appropriate barrier coatings. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：657 / 665

页数：9

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