Electrical and humidity sensing properties of polyaniline/WO3 composites

被引：211
作者：
Parvatikar, N
Jain, S
Khasim, S
Revansiddappa, M
Bhoraskar, SV
Prasad, MCNA [1 ]
机构：
[1] Gulbarga Univ, Dept Mat Sci & Phys, Gulbarga 585106, Karnataka, India
[2] Gulbarga Univ, Dept Phys, Gulbarga 585106, Karnataka, India
[3] Gulbarga Univ, Dept Chem, Gulbarga 585106, Karnataka, India
[4] Univ Pune, Dept Phys, Ctr Adv Res Mat Sci & Solid State Phys, Pune, Maharashtra, India
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 114卷 / 02期
关键词：
polyaniline; tungsten oxide; humidity sensors;
D O I：
10.1016/j.snb.2005.06.057
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Conducting polyaniline/tungsten oxide (WO3) composites have been synthesized by 'in situ' deposition technique by placing fine graded WO3 in polymerization mixture of aniline. This is a single step polymerization process for the direct synthesis of emeraldine salt phase of the polymer. The results were also well supported by FTIR spectral analysis, scanning electron microscope (SEM), XRD and conductivity measurements. High temperature conductivity measurements show thermal activated behavior. The change in resistance with respect to percent relative humidity (RH) is observed. The composites in the pellet form exhibit almost linear behavior within a chosen range of humidity (ranging between 10 and 95% RH). (c) 2005 Elsevier B.V. All tights reserved.
引用
收藏
页码：599 / 603
页数：5
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