论文部分内容阅读
采用溶胶 凝胶法制备了一系列PPV/TiO2 纳米复合膜 ,探讨了TiO2 纳米微粒对PPV发光性能的影响 .研究发现 ,这些复合膜的发光性质依赖于TiO2 /PPV的质量比 ,.在TiO2 /PPV的质量比为 1 / 9时 ,复合膜中的TiO2 微粒对PPV的荧光具有猝灭作用 ;当TiO2 /PPV的质量比为 1 / 1时 ,复合膜中的TiO2 对PPV的荧光具有增强作用 .通过FT IR ,UV Vis,FL光谱和TEM探讨了复合膜微结构与其发光性质的关系
A series of PPV / TiO2 nanocomposite films were prepared by sol-gel method and the effects of TiO2 nanoparticles on the luminescent properties of PPV were investigated. It was found that the luminescent properties of these films depend on the mass ratio of TiO2 / PPV. When the mass ratio of PPV to PPV is 1/9, the TiO2 particles in the composite film have a quenching effect on the fluorescence of PPV. When the mass ratio of TiO2 / PPV is 1/1, TiO2 in the composite film has an enhancement effect on the fluorescence of PPV The relationship between the microstructure and the luminescent properties of the composite films was investigated by FT IR, UV Vis, FL spectra and TEM