Gas sensors based on polyaniline/zinc oxide hybrid film for ammonia detection at room temperature

被引：42
作者：
Zhu, Guotao [1 ]
Zhang, Qiuping [1 ]
Xie, Guangzhong [1 ]
Su, Yuanjie [1 ]
Zhao, Kang [1 ]
Du, Hongfei [1 ]
Jiang, Yadong [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Optoelect Informat, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2016年 / 665卷
基金：
中国国家自然科学基金;
关键词：
Zinc oxide; Polyaniline; Hybrid film; Ammonia; Room temperature; THIN-FILM; ZNO; NANOFIBERS; NANORODS; NH3;
D O I：
10.1016/j.cplett.2016.10.068
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polyaniline/zinc oxide (PANI/ZnO) hybrid film based sensors have been developed for ammonia (NH3) detection at room temperature (RT). Results shows that hybrid film sensor exhibits a p-type semiconductor behavior and larger response than that of pure PANI film sensor. In the system, ZnO nanorod arrays can not only create nanoscale gap for gas diffusion but also provide abundant adsorption sites, thus leading to enhancement of response. Besides, hydrothermal time is proportional to the length of nanorods, Longer nanorods will provide efficient gap for gas diffusion, which leads to better sensitivity. This work offers a promising way to optimize sensor performance. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：147 / 152
页数：6
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