Three dimensional multi-arm acceptors based on diketopyrrolopyrrole with (hetero)aromatic cores for non-fullerene organic solar cells without additional treatment

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• 作者：Po Sun^a ; ^b ; Hua Sun^a ; ^b ; Xiangzhi Li^a ; ^b ; Yulong Wang^b ; Haiquan Shan^b ; Jiaju Xu^b ; Cong Zhang^a ; Zongxiang Xu^b ; ^{xu.zx@sustc.edu.cn} ; Zhi-Kuan Chen^a ; ^{iamzkchen@njtech.edu.cn} ; Wei Huang^a ; ^{iamwhuang@njtech.edu.cn}
• 刊名：Dyes and Pigments
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：139
• 期：Complete
• 页码：412-419
• 全文大小：2558 K
• 卷排序：139

文摘

Multi-arm acceptors based on diketopyrrolopyrrole (DPP) segments and either a tetraphenylethylene (TPE) or spirobicyclopentadithiophene (SCPDT) core were designed and synthesized as fullerene replacements for organic solar cells. The multi-arm acceptors with three dimensional structures showed uniform film morphologies of appropriate nano-phase separation when blended with a donor polymer and good charge transporting ability. Diketopyrrolopyrrole (DPP) incorporated with dicyanovinyl (DCV) is a good building block for small molecualr acceptors with high electron mobility.