摘要
An A-D-A-type small molecule, DCF-2HT, was synthesized using fluorene as the central block and 2- （2,3-dihydro-3-oxo- 1H-inden- 1-ylidene）propanedinitrile as the end groups, with one hexyl-substituted thiophene as a n bridge, for use as an acceptor material in organic solar cells. Devices based on DCF-2HT and the polymer donors PBDB-T or PTB7-Th were fabricated and optimized. Power conversion efficiencies of 5.71% and 4.83% were obtained for PBDB-T： DCF-2HT- and PTB7-Th： DCF-2HT-based devices, respectively.
本文合成了一个以芴为中心核,己基取代噻吩为桥,双氰基茚满二酮为端基的"受体-给体-受体"型小分子(DCF-2HT),并对基于给体材料为PBDB-T/PTB7-Th,受体为DCF-2HT的太阳能电池器件光伏性能进行了研究.经过一系列形貌优化,以0.5%甲基萘为添加剂,PBDB-T和PTB7-Th为给体材料的器件效率分别优化至5.71%和4.83%.
作者
Yongtao Liu
刘勇涛;张洪涛;孙延娜;万相见;陈永胜(The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento- Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering （Tianjin）, College of Chemistry, Nankai University, Tianjin 300071, China School of Materials Science and Engineering, the National Institute for Advanced Materials, Nankai University, Tianjin 300071, China)
基金
supported by the Ministry of Science and Technology(2014CB643502 and 2016YFA0200200)
the National Natural Science Foundation of China(21404060 and 91433101)
