有机太阳能电池用聚合物给体材料的研究进展

Progress in Polymeric Electron-Donating Materials for Organic Solar Cells

有机太阳能电池由于质轻、价廉、柔性,受到人们的广泛关注.开发性能优异的聚合物给体材料,是近期有机太阳能电池研究的主流方向之一.迄今为止,已经成功开发出各种各样具有优秀的给体性质的共轭聚合物.基于这些材料制备的有机太阳能电池器件,已经突破9%的光电转换效率.按照聚合物给体材料的主链结构分类,综述了近年来这方面的研究进展.对一些受到普遍关注的材料,从设计思想、性能剖析到器件制备和性能,做了详细的介绍,以期能够深层次理解材料的化学结构-凝聚态结构-性能间的基本规律,为今后的材料研发提供有价值的参考.

Organic solar cells（OSCs） have attracted an extensive attention due to their light-weight,low cost and flexible features.Exploitation of novel polymeric donating materials is one of the mainstreams in the field.To date,a variety of conju-gated polymers with excellent electron-donating properties have been developed.Based on these materials,power conversion efficiency of OSCs has reached to 9%.This review classifies these materials based on the chemical structures of the repeating units,and summarizes their progress accordingly.A number of representative materials,which have received much attention,are highlighted from the aspects of designing strategy,properties,device fabrication and performance.It is anticipated to penetrate more deeply the basic relationships among the chemical structure-packing structure-property,which could provide valuable information for the future materials exploitation.