Acceptor-Donor-Acceptor Oligomers Containing Dithieno[3,2-b:2 %26apos;,3 %26apos;-d]pyrrole and Thieno[2,3-c]pyrrole-4,6-dione Units for Solution-Processed Organic Solar Cells

作者：Mercier Lauren G; Mishra Amaresh^*; Ishigaki Yusuke; Henne Florian; Schulz Gisela; Baeuerle Peter

来源：Organic Letters, 2014, 16(10): 2642-2645.

DOI：10.1021/ol500809e

New acceptor-donor-acceptor (A-D-A) oligomers (1 and 2) containing a central dithieno[3,2-b:2%26apos;,3%26apos;-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%.

• 出版日期2014-5-16