Journal
CHEMICAL COMMUNICATIONS
Volume 53, Issue 3, Pages 537-540Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc07335b
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Funding
- NSF of China [91233205, 21574013]
- Program for Changjiang Scholars and Innovative Research Team in University
- Fundamental Research Funds for the Central Universities
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For the first time, a hyperbranched polymer acceptor, HP-PDI, was designed, synthesized and applied in polymer solar cells (PSCs). Devices based on HP-PDI showed a power conversion efficiency of 2.15%, which is 14 times higher than that of devices based on the small molecular acceptor SM-PDI. The hyperbranched structure can effectively suppress the aggregation of PDI molecules preventing them from forming large domains. Our preliminary results have demonstrated that high efficiency PSCs could be achieved by using a hyperbranched polymer acceptor.
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