Humidity sensors based on TiO2 nanoparticles/polypyrrole composite thin films

文化大學機構典藏 CCUR > 理工學院 > 理學院 > 化學系所 > 期刊論文 > Item 987654321/2687

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/2687

题名:	Humidity sensors based on TiO2 nanoparticles/polypyrrole composite thin films
作者:	Su, Pi-Guey Huang, Lin-Nan
贡献者:	化學系
关键词:	humidity sensor in situ photopolymerization composite film PPy TiO(2)NPs sensing mechanism
日期:	2007
上传时间:	2009-11-13 15:03:33 (UTC+8)
摘要:	Resistive-type humidity sensors were fabricated through in situ photopolymerization of pure polypyrrole (PPy) and TiO2 nanoparticles/polypyrrole (TiO2 NPs/PPy) composite thin films on an alumina substrate. The characterizations of the thin films were analysed by scanning electron microscopy (SEM) coupled with an energy dispersive spectrometer (EDS) and Fourier transform infrared spectroscopy (FTIR). The electronic properties of PPy and TiO2 NPs/PPy composite thin films were investigated based on the components AgNO3 and TiO2 used as electron acceptor and photoinitiator, respectively. The humidity sensing mechanism of TiO2 NPs/PPy composite thin films was investigated via the results of activation energy and impedance spectroscopy. The sensor made of TiO2 NPs/PPy composite thin films, using the added amount of TiO2 NPs as 0.0012g showed the highest sensitivity, smaller hysteresis and best linearity. Moreover, other sensing properties, such as effects of applied frequency, ambient temperature, response and recovery time and long-term stability were also investigated. (c) 2006 Elsevier B.V. All rights reserved.
關聯:	AND ACTUATORS B-CHEMICAL Volume: 123 Issue: 1 Pages: 501-507
显示于类别:	[化學系所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	Text	542	检视/开启

在CCUR中所有的数据项都受到原著作权保护.

数据加载中.....