静电纺丝制备有机盐类非线性光学材料纳米纤维

采用静电纺丝技术制备的有机非线性光学材料纳米纤维可有效控制非线性光学材料的分子取向,其生色团可实现与有机单晶类似的优化排列结构,表现出了与纯生色团分子相近的宏观二阶非线性光学性质。本文将有机盐类非线性光学材料掺杂在聚乙烯吡咯烷酮中制备出了具有各向异性结构且表面光滑、排列有序的纳米纤维薄膜,Kurtz非线性测试结果表明,随着薄膜厚度增加,其二次谐波信号强度成正比增大。

Electrospinning Preparation of Organic Salt Nonlinear Optical Material Nanofibers

The use of electrospinning technology to prepare organic nonlinear optical nanofibers can effectively control the molecular orientation of nonlinear optical materials, the chromophores can achieve optimized arrangement similar to that of the organic single crystal showing macroscopic second-order nonlinear optics similar to pure chromophore molecules quality. In this paper, nonlinear optical organic salts were doped in polyvinylpyrrolidone to prepare nanofiber films with anisotropic structure, smooth surface and orderly arrangement. Kurtz nonlinear tests reflect that the second harmonic signal intensities are enhanced in a proportional manner with the increase of film thickness.