Optical properties of ZnO/silica nanocomposites prepared by sol-gel method and deposited by dip-coating technique

被引:21
|
作者
Djouadi, D. [1 ]
Chelouche, A. [1 ]
Aksas, A. [1 ]
Sebais, M. [2 ]
机构
[1] Univ Bejaia, Lab Genie Environm, Route Targa Ouzemmour 06000, Bejaia, Algeria
[2] Univ Constantine, Crystallog Lab, Constantine, Algeria
来源
PROCEEDINGS OF THE JMSM 2008 CONFERENCE | 2009年 / 2卷 / 03期
关键词
Nanocomposites; ZnO; sol-gel; dip-coating; photoluminescence; TIO2; NANOPARTICLES; ZNO NANOCRYSTALS; SILICA; PHOTOLUMINESCENCE; GROWTH; MECHANISM;
D O I
10.1016/j.phpro.2009.11.013
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
ZnO/silica nanocomposites films were prepared by sol-gel method and deposited by dip- coating technique. Fourier Transform Infrared (FTIR) spectroscopy revealed the inclusion of ZnO crystallites in silica thin films. The presence of excitonic peaks in optical absorption spectrum confirms the introduction of ZnO crystallites in silica matrix. The photoluminescence spectrum of studied nanocomposite shows a large luminescence (from 1.8 eV to 3.2 eV). This broad luminescence can be considered as a superposition of 4 bands centered on 2.93, 2.57, 2.22 and 2.03 eV. This result shows that the elaborated samples can be used for different technological applications. (C) 2009 Elsevier B.V. All rights reserved
引用
收藏
页码:701 / 705
页数:5
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