A high-performance photovoltaic small molecule developed by modifying the chemical structure and optimizing the morphology of the active layer

作者:Ni Wang; Li Miaomiao; Wan Xiangjian; Feng Huanran; Kan Bin; Zuo Yi; Chen Yongsheng*
来源:RSC Advances, 2014, 4(60): 31977-31980.
DOI:10.1039/c4ra04862h

摘要

A small molecule (DR3TDOBDT) containing 4,8-dioctyl benzo[1,2-b: 4,5-b'] dithiophene as the central block and 3-(2-ethylhexyl)-rhodanine as the end-capping groups has been designed and synthesized. A power conversion efficiency of 8.26% was achieved through the active layer morphology optimization process combining thermal annealing and solvent vapor annealing.