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

页码：701 / 705

页数：5

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