Journal
POLYMER CHEMISTRY
Volume 6, Issue 9, Pages 1613-1618Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4py01276c
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Funding
- NSF of China [51003006, 21161160443]
- 973 Programs [2011CB935702]
- Fundamental Research Funds for the Central Universities [2011CB935702]
- Fundamental Research Funds for the Central Universities
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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 x 10(-2) cm(2) 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 (V-oc) of 0.74 V, a short circuit current (J(sc) o)f 12.50 mA cm(-2), and a fill factor (FF) of 0.65.
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