Flexible, all-organic ammonia sensor based on dodecylbenzene sulfonic acid-doped polyaniline films

被引：41

作者：

Rizzo, G. ^{[1
]}

Arena, A. ^{[2
]}

Donato, N. ^{[2
]}

Latino, M. ^{[2
]}

Saitta, G. ^{[2
]}

Bonavita, A. ^{[1
]}

Neri, G. ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Ind & Ingn Mat, I-98100 Messina, Italy

[2] Univ Messina, Dipartimento Fis Mat & Ingn Elettron, I-98100 Messina, Italy

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 23期

关键词：

Organic sensors; Gas sensors; Ammonia; Conducting polyaniline; Flexible substrate; THIN-FILMS; FABRICATION; ISSUES;

D O I：

10.1016/j.tsf.2010.07.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A stable chlorobenzene dispersion of conducting polyaniline (PANI) has been obtained by doping emeraldine base with dodecylbenzene sulfonic acid (DBSA) and studied by spectrophotometric measurements in the UV-vis-IR range. The electrical properties of PANI: DBSA films obtained from the above dispersion have been investigated under different temperature and relative humidity conditions. All-organic chemoresistive devices have been developed by spin-coating the PANI: DBSA dispersion on flexible substrates, and then by depositing electrodes on the top, from a carbon nanotube conducting ink. Sensing tests performed under exposition to calibrated amounts of ammonia reveal that these simple and inexpensive sensors are able to detect ammonia at room temperature in a reliable way, with a sensitivity linearly related to concentration in the range between 5 ppm and 70 ppm. (C) 2010 Elsevier B.V. All rights reserved.

引用

收藏

页码：7133 / 7137

页数：5

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