高折射率聚合物-无机纳米光学杂化材料的设计与制备及其应用

传统的高折射率聚合物光学材料,可以通过向聚合物中引入一些芳香环,含硫基团以及除氟以外的其他卤素原子来提高聚合物光学材料的折射率,但是就目前的研究现状来看,这类纯聚合物光学材料的折射率一般都低于1.8.而将具有高折射率的无机纳米粒子引入到聚合物中,所制备的聚合物-无机纳米光学材料的折射率能够达到1.8以上.而且这类高折射率聚合物-无机纳米光学杂化材料同时具有高分子光学材料和无机材料的双重优点,具有广泛的应用前景.鉴于当前高折射率聚合物-无机纳米光学杂化材料发展之迅速和其研究与开发的重要性,并结合目前国内外的研究现状,本文就高折射率聚合物-无机纳米光学杂化材料的设计、制备方法及其相关应用做一个比较系统的介绍,同时对这类材料在未来研究中所应注意的问题也提出了相应的看法.

DESIGN AND FABRICATION OF HIGH REFRACTIVE INDEX POLYMER-INORGANIC OPTICAL HYBIRD MATERIALS AND THEIR PRACTICAL APPLICATIONS

In the past decades,researchers fabricated high refractive index(n) polymer optical materials by introducing aromatic rings,sulfur-containing groups,halogens except uorine and organometallic moieties.However,the refractive index of these pure polymer materials is usually below 1.80.Incorporation of high-n nanoparticles into polymer matrices seems to be a more promising strategy to achieve a refractive index higher than 1.80.And these high refractive index polymer-inorganic optical hybird materials have many promising applications in optical design and advanced optoelectronic fabrication due to its excellent performance combining the properties of polymer and inorganic materials.This article summarizes the general design principles,different fabrication approaches of high RI nanocomposites and reviews recent research advances and some important optical applications of these nanocomposites.