无机材料学报2013，Vol.28Issue(6)：659-664,6.DOI:10.3724/SP.J.1077.2013.12483
高三阶光学非线性Cd/CdS-SiO2复合薄膜的电化学-溶胶凝胶制备及表征
Preparation and Characterization of Cd/CdS-SiO2 Composite Film with High Third-order Optical Nonlinearity by Electrochemically Induced Sol-Gel Method
摘要
Abstract
The sol was prepared with cadmium nitrate,thiourea and tetraethoxysilane as precursors by Sol-Gel method.The transparent film was prepared on ITO substrate by electrochemically induced Sol-Gel method using the as-prepared sol as electrolyte.SEM results showed that the film was made up of nano beams.While EDX results showed that the component elements of the film were Si,O,Cd,S and the atom ratio of Cd to S was more than 1.It could be inferred from both the EDX and cyclic voltammetry's results that the film composite was Cd/CdS-SiO2.Z-scan test results showed that the film had third-order optical nonlinearity with self defocusing nonlinear refraction and saturated absorption properties at the wavelength of 1064 nm.The third-order nonlinear optical susceptibility of films could reach 1.18 × 10-14 (m/V)2 to 1.39 × 10-13 (m/V)2 which demonstrated that the third-order nonlinear optical properties of these films were excellent.Further analysis showed that the content of CdS in the film remarkably influenced the optical nonlinearity.关键词
三阶光学非线性/Cd/CdS-SiO2复合薄膜/电化学-溶胶凝胶/Z扫描Key words
third-order optical nonlinearity/ Cd/CdS-SiO2 composite film/ electrochemically induced Sol-Gel/Z-scan分类
数理科学引用本文复制引用
卿胜兰,甘平..高三阶光学非线性Cd/CdS-SiO2复合薄膜的电化学-溶胶凝胶制备及表征[J].无机材料学报,2013,28(6):659-664,6.基金项目
重庆市科委科技计划项目院士专项基金(2008BC4003) （2008BC4003）
Research Funds of Chongqing Science and Technology Committee (2008BC4003) （2008BC4003）
