The side chain effect on difluoro-substituted dibenzo[a,c]phenazine based conjugated polymers as donor materials for high efficiency polymer solar cells
Literature Information
Publication Date
2014-12-05
DOI
10.1039/C4PY01276C
Impact Factor
5.582
Authors
Guangwu Li, Zhen Lu, Cuihong Li, Zhishan Bo
View Original
Abstract
Two conjugated polymers with benzodithiophene derivatives as the donor unit and planar difluoro-substituted dibenzo[a,c]phenazine as the acceptor unit P1, P2-L and P2-H were designed, synthesized, and used as the donor material in polymer solar cells. P2-H exhibits the highest hole mobility of 1.54 × 10−2 cm2 V−1 s−1. Polymer solar cells (PSCs) with a blend of P1:PC71BM (1 : 1.5, by weight) as the active layer show the highest power conversion efficiency (PCE) of 6.0% with an open circuit voltage (Voc) of 0.74 V, a short circuit current (Jsc) of 12.50 mA cm−2, and a fill factor (FF) of 0.65.
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Polymer Chemistry
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