控电位法制备CdSe/PANI复合薄膜及其光致发光性

摘要

采用控电位法,以PANI薄膜作为载体,成功制备出CdSe/PANI复合薄膜。采用扫描电子显微镜(SEM)、X射线衍射(XRD)、荧光光谱仪等仪器对所制备的薄膜进行比较与表征。CdSe/PANI复合薄膜中CdSe微粒粒径约为150~200 nm,且随沉积时间的延长,粒径逐渐增大。复合薄膜中含有聚苯胺和CdSe 2种成分的晶体,并且复合薄膜的晶型结构与沉积CdSe薄膜的厚度无关。与PANI薄膜和CdSe薄膜比较,CdSe/PANI复合薄膜的荧光强度明显增强,PANI增强了CdSe的光致发光性能,光致发光发射峰位置发生红移。

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	王宏智
	卢敬
	李剑
	姚素薇
	张卫国

关键词：聚苯胺 CdSe 电沉积复合薄膜光致发光

Abstract：

With PANI as the carrier,CdSe/PANI composite films were prepared by potential controlled electrodeposition method. The morphology, crystal structure and optic properties of the films were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and luminescence spectrum. SEM images show that the grain size of CdSe in CdSe/PANI composite films is 150—200 nm,and the grain size increases with the increase of electroplating time. X-ray diffraction result showed that CdSe/PANI composite films contained two kinds of crystals and the crystal structure of CdSe/PANI composite films didn't alter with the changes of its thickness. The luminescence spectrum showed that photoluminescence properties of CdSe/PANI composite films were greater than those of the CdSe films and PANI films. Compared with CdSe film,the existence of PANI in composite films had a role of the carrier and significantly enhanced the photoluminescence properties of CdSe,and led to the photoluminescence emission peak position red-shifted obviously.

Keywords： PANI； CdSe； electrodeposition； composite film； photoluminescence

Received 2014-03-14;

Corresponding Authors: 张卫国,E-mail:zwg@tju.edu.cn。 Email: zwg@tju.edu.cn

About author: 王宏智(1973-),男,博士研究生,现从事光催化和超级电容器方面的研究。

引用本文:

王宏智, 卢敬, 李剑, 姚素薇, 张卫国.控电位法制备CdSe/PANI复合薄膜及其光致发光性[J]. 化学工业与工程, 2016,33(2): 37-40

Wang Hongzhi, Lu Jing, Li Jian, Yao Suwei, Zhang Weiguo.Photoluminescence Performance and Preparation of CdSe/PANI Composite Films by Potential Controlled Electrodeposition[J]. Chemcial Industry and Engineering, 2016,33(2): 37-40

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