本项目研究纳米金属的表面等离子体（SPR）效应增强有机稀土发光或敏化共轭高分子光电转换，分别获得高效发光或光电转换的高分子基复合材料。经对无机包覆纳米金属的核壳结构的结构参数调控，实现两个最佳敏化：（1）核壳纳米金属SPR效应敏化其表面键合的有机稀土络合物（OLC）高效发光，并经对纳米结构外表面修饰，获得核壳纳米金属与基体高分子易于相容的界面结构和对基体高分子形态结构诱变（成核添加效应）的规律；（2）核壳纳米金属敏化其近域的共轭高分子光电转换性最佳，获得光电活性高分子π电子激发和空穴-电子分离的高效性。本项目以考察纳米材料结构与复合材料性能为主要关注。创新点在于通过纳米金属复合结构的设计和调控，将SPR效应用于提高固体发光和光电转换复合材料的性能，其中发光材料具有光谱敏锐性和多色谱性，光电转换具有高效性。从而，为高效柔性发光和光电材料面向柔性光致发光和柔性太阳能电池等领域提供依据。

This proposal suggests to sensitize (1) the luminescence property of organic lanthanide complexes (OLC) and their related polymer-based compostes and (2) photoelectrical conversion of conjugate polymers by surface plasmon resornance (SPR) effect of nano metals. Firstly, we will investigate the luminescence enhancement of a composite nanostructure, in which nanoAg is as the central core, SiO2 as spacer shell, as well as the luminescence organic lanthanide complexes (OLC) as the outest sheath of the composite nanoparticle. The energy generated from surface plasmonic resornance (SPR) effect of nanometal particle from incident light transfers to OLC via the spaer layer of SiO2 and the emisssion intensity of OLC will be enhanced. Adjusting the structural factors, such as the size of nanometal particles, thickness of SiO2 spacer, the content of OLC at the surfce of SiO2, and the OLC components, the maximum emission intensity of OLC will be gained through the optimization. Because different lanthanide ions (Ln3+) can emit different light at different wavelength, we can get seerial composite nanoparticles emitting different wavelength lights from visible to infrared. This is very easy with the composite nanoparticles just by changing different lanthanide ions in OLC emission dots and also we can get compounding color via using two or more kinds of lanthanide ions. Additionally,covlently or physically modifying the surface of the composite nanoparticles, we can impart the additional surface functions including nucleation effect on host polymers, such as iPP, PE, PET and so on, to form clearer optical materials. Secondly, the purpose of this proposal is to sensitize the conjugate polymers to obtain the high photoelectrical conversion efficiency by using this highly efficient SPR nanostructure of metal@SiO2 through the embedment of this metal@SiO2 into conjugate polmymer film. In this specially designed metal@SiO2-in-film (MIF) structure, the SPR energy transfers directly to conjugate polymer matrix in its vicinity, and thus the induced light absorption of the composite film makes the high photoelectrical conversiton. Our data gained from the experiments have confirmed this enhanced photo absorption and the increase of convesion efficiency.