文献类型：期刊文献

中文题名：染料LB膜及其非线性光学效应的研究

英文题名：Langmuir-Blodgett Films of Dyes and Their Non-Linear Optical Effect

作者：钟菊花[1];张兆奎[1];王文澄[2];胡家聪[2];朱自强[3]

机构：[1]华东化工学院物理系;[2]复旦大学;[3]河南大学

年份：1992

卷号：18

期号：3

起止页码：394

中文期刊名：华东化工学院学报

收录：国家哲学社会科学学术期刊数据库;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：LB膜;非线性光学;染料

外文关键词：dyes; non-linear optics; second-harmonic scattering; Langmuir-Blodgett films; non-linear susceptibilities

摘要：合成了五种具有二嗜性、能形成单分子膜,又具有大的二阶非线性极化率β的有机染料——半花菁和苯腙衍生物。将它们制备成均一或混合的单分子层和多层LB膜。用相对法测定了它们的β值,证实了半花菁和部分苯腙衍生物具有高达3.711×10^(-49)c^3·m^3·J^(-2)的β值。用X射线小角衍射、紫外-可见吸收光谱、荧光光谱及二次光学谐波信号,对LB膜进行了表征,给出了膜中分子取向和排列情况,证实膜中分子存在J聚体形式。
Five kinds of amphiphilic hemicyanine and phenylhydrazon dyes which can from monomolecular film and have large molecular second order non-linear susceptibilities β value were synthesized. Their homogeneous or mixed monolayer and multilayer films were made up. Through the measure of the Second-Harmonic Signal with relative methods, their value were measured to 3.711×10^(-49)c^3. m^3. J^(-2). The properties of LB films were characterized by using Shallow-Angle X-Ray Diffraction, UV-Vis Light Absorption Spectrum, Fluorescence Spectrum and Second-Harmonic Signal. The orientation and arrangement of molecules in LB films were given, thus it showes to be J-Aggregation forms in LB films.