Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 13, Issue 8, Pages 918-923Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201800058
Keywords
crystal engineering; fused-ring systems; perylene diimides; solar cells; synthesis design
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Funding
- 973 Program [2014CB643502]
- National Natural Science Foundation of China (NSFC) [21790361]
- Chinese Academy of Sciences [XDB12010400]
- Youth Innovation Promotion Association of Chinese Academy of Sciences
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Two isomeric N-annulated perylene diimide dimers, namely, p-BDNP and m-BDNP were designed and synthesized via geometric tuning. The distinct molecular geometry and packing arrangements of isomers with almost identical optical and electrochemical properties rendered us an in-depth understanding of the molecular structure-aggregation state-photovoltaic performance relationship. Blended with the commercially available donor PCE-10, p-BDNP and m-BDNP showed distinct differences in photovoltaic performance with power conversion efficiencies (PCEs) of 5.01% and 4.15%, respectively.
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