纳米晶/聚合物太阳能电池

纳米晶/聚合物太阳能电池作为一种新型光伏器件成为近年来的研究热点。通过改变纳米晶的形貌及尺寸来调节材料本身的带隙从而改善光吸收特性,并且无机半导体材料本身具有高的电子迁移率和良好的热稳定性,以上特性使该类电池具有巨大的发展潜力。本文从纳米晶的种类、形状和尺寸、表面配体及纳米晶与聚合物界面性能等方面综述了纳米晶/聚合物太阳能电池的研究现状。纳米晶形貌、太阳光利用率和载流子传输效率是影响电池效率的主要因素。文中指出开展窄带隙纳米晶的合成、优化纳米晶/聚合物电池结构、解析纳米晶与聚合物界面激子传输机理等改善该类电池性能的途径,旨在为提高纳米晶/聚合物太阳能电池的效率提供借鉴经验。

Nanocrystal/Polymer Solar Cell

Hybrid solar cells based on nanocrystals and conjugated polymer are emerging as a suitable alternative to classical solar cells.This kind of solar cell has attracted great attentions,because of the absorption spectra tunable by the size,shape and composition of nanocrystals,and their higher electron transfer velocity than that of polymer.This article reviews the status of the nanocrystal / polymer hybrid solar cells.The factors affecting the solar cell performance are critically examined including the size and morphology of nanocrystals,the capping ligand,and the interfacial charge transportations between nanocrystals and polymer.Several strategies for increasing the overall efficiency of this hybrid solar cell are discussed.Narrow band gap nanocrystals,structure optimizations and analysis of the mechanism of charge transportations are expected as the routes for future development of this solar cell.