Perylene diimide-benzodithiophene D-A copolymers as acceptor in all-polymer solar cells

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• 作者：Youdi Zhang^a ; Xia Guo^a ; ^{guoxia@suda.edu.cn} ; Wenyan Su^a ; Bing Guo^a ; Zhuo Xu^a ; Maojie Zhang^a ; ^{mjzhang@suda.edu.cn} ; Yongfang Li^a ; ^b ; ^{liyf@iccas.ac.cn}
• 关键词：Perylene diimide ; n-type conjugated polymers ; Polymer acceptors ; All-polymer solar cells
• 刊名：Organic Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：41
• 期：Complete
• 页码：49-55
• 全文大小：1633 K
• 卷排序：41

文摘

Two n-type polymers P(PDI-BDT-Ph) and P(PDI-BDT-Th) with PDI as acceptor unit and BDT as donor unit were synthesized. The two polymer films possess the same LUMO level of −3.89 eV, and low bandgaps of 1.65 and 1.55 eV respectively. The all-PSCs based on PTB7-Th:P(PDI-BDT-Ph) showed a PCE of 4.31% with a Jsc of 11.94 mA cm−2 and a Voc of 0.81 V.