Acceptor鈥揇onor鈥揂cceptor Oligomers Containing Dithieno[3,2-b:2鈥?3鈥?d]pyrrole and Thieno[2,3-c]pyrrole-4,6-dione Units for Solution-Processed Organic Solar Cells

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• 作者：Lauren G. Mercier ; Amaresh Mishra ; Yusuke Ishigaki ; Florian Henne ; Gisela Schulz ; Peter B盲uerle
• 刊名：Organic Letters
• 出版年：2014
• 出版时间：May 16, 2014
• 年：2014
• 卷：16
• 期：10
• 页码：2642-2645
• 全文大小：267K
• 年卷期：v.16,no.10(May 16, 2014)
• ISSN：1523-7052

文摘

New acceptor鈥揹onor鈥揳cceptor (A鈥揇鈥揂) oligomers (1 and 2) containing a central dithieno[3,2-b:2鈥?3鈥?d]pyrrole unit and end-capping thieno[2,3-c]pyrrole-4,6-dione groups have been synthesized and characterized. Bulk heterojunction solar cells were prepared together with PC₆₁BM and PC₇₁BM, and the best results were obtained for the latter acceptor using 1,8-diiodooctane as an additive. Photovoltaic devices containing these oligomers achieved high external quantum efficiencies up to 50%.