聚合物与纳米晶的杂化及性能优化

聚合物-纳米晶杂化材料因结合了有机和无机材料的优点而逐渐地受到了人们普遍的关注,聚合物为纳米晶的形成与生长提供了优良的环境,纳米晶的引入同样也增加和强化了聚合物的功能特性.如聚硫代氨基甲酸酯与TiO2杂化的高折射率薄膜,该薄膜不仅保持了原有的性能,而且有较高的折射率.此外,还有许多不同纳米粒子与不同聚合物的杂化体系.如...

POLYMER-NANOCRYSTALS COMPOSITE MATERIALS AND PERFORMANCE OPTIMIZATION

Polymer-nanocrystals composite materials have attracted much attention for combining the advantage of both the organic and inorganic materials,the polymer provides an inert environment for the formation and growth of the nanocrystals,and nanocrystals in return enhance the performance of the polymer.Such as the TiO2-triethoxysilanecapped polythiourethane(TCPTU) composite optical films,the films not only retained the origin properties but also achieved a high refractive index.Besides,there are lots of different polymer-nanocrystals composite materials such as PDMAA/ZnS,PbS/PTU nanocomposites.The organic-inorganic materials could also be used to prepare the high performance photoluminescence materials besides the high refractive optical films.CdTe nanocrystals covered with negative charge could be transferred from water to organic solvent through the electrostatic force.At last,through radical polymerization,the bulk materials with a uniform distribution of the nanocrystals could be obtained.In turn,polymer could be used as a friend media to control the growth of the CdTe nanocrystals and realize the precise control and the performance optimization.The luminescent color under the UV light could be controlled by changing the size of the nanocrystals.What's more,as a kind of functional polymer,PPV precursor could be combined with CdTe nanocrystals to prepare pure white-light composite materials and also high performance photovoltaic devices.