Dual substitution at 4,9-positions of carbazole in donor-π-acceptor copolymer enhances performance of bulk-heterojunction organic solar cells

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• 作者：Kosuke Shibasaki^a ; ^b ; Takeshi Yasuda^b ; ^c ; Yohei Yamamoto^b ; ^d ; Masashi Kijima^b ; ^d ; ^{kijima@ims.tsukuba.ac.jp}
• 关键词：Carbazole ; Benzothiadiazole ; Donor-π-acceptor conjugated polymer ; Self-organization ; Organic photovoltaics
• 刊名：Polymer
• 出版年：2017
• 出版时间：13 January 2017
• 年：2017
• 卷：108
• 期：Complete
• 页码：305-312
• 全文大小：1453 K
• 卷排序：108

文摘

Carbazole based D-π-A narrow bandgap copolymers were newly synthesized. 4,9-Disubstituents at the carbazole unit can arbitrarily be chosen to control and modify solubility and crystallinity of the copolymers. Substitutions on both sides of polymer backbone enhance the BHJ photovoltaic performance of the copolymer-PC70BM.