In situ synthesis and nonlinear optical properties of Ag nanocomposite polymer films

被引：24

作者：

Deng, Yan ^{[1
]}

Sun, Youyi ^{[2
,3
]}

Wang, Pei ^{[1
]}

Zhang, Douguo ^{[1
]}

Ming, Hai ^{[1
]}

Zhang, Qijing ^{[2
]}

机构：

[1] Univ Sci & Technol China, Dept Phys, Anhua 230026, Hefei, Peoples R China

[2] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Peoples R China

[3] N Univ China, Coll Mat Sci & Engn, Taiyuan 030051, Peoples R China

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 04期

关键词：

nanocomposites; thin films; silver nanoparticle; nonlinear optical properties;

D O I：

10.1016/j.physe.2007.11.018

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Ag nanocomposite polymer films were prepared by in situ synthesis. The presence of silver nanoparticles is confirmed by transmission electron microscopy (TEM) and electron diffraction (ED), which show that the particles' average sizes are about 10 nm and the particles can be dispersed in a polymer matrix. Nonlinear optical measurements, performed by Z-scan techniques, are further presented. The addition of silver nanoparticles to the polymer film leads to the enhancement of nonlinear optical properties. The nonlinear refractive index and nonlinear absorption coefficient are measured to be 3.708 x 10(-11) m(2)/W and 1.221 x 10(-8) m/W, respectively. The enhanced nonlinear optical properties are due to the surface plasmon resonance of silver nanoparticles. The Ag nonlinear polymer film shows promise for practical use in all optical devices. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：911 / 914

页数：4

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