Searching proper oligothiophene segment as centre donor moiety for isoindigo-based small molecular photovoltaic materials

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• 作者：Long Liang^a ; ^b ; Xue-Qiang Chen^b ; ^c ; Xuan Xiang^b ; ^c ; Jun Ling^d ; Wei Shao^b ; ^c ; Zhengquan Lu^a ; ; Jingjing Li^a ; Wenwu Wang^a ; Wei-Shi Li^a ; ^b ; ^c ; ^{liws@mail.sioc.ac.cn}
• 关键词：Organic solar cell ; Small photovoltaic molecule ; Isoindigo ; Donor-acceptor conjugated polymer ; Structure-property relationship
• 刊名：Organic Electronics
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：42
• 期：Complete
• 页码：93-101
• 全文大小：1546 K
• 卷排序：42

文摘

A series of D2-A-D1-A-D2 small molecules with isoindigo as A, oligothiophene as D1, and 5-hexyl thiophene as D2 were studied. The number of thiophene units in oligothiophene segment was systematically investigated. An unusual odd-even phenomenon has been observed on their photovoltaic performances.