期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 26, 期 2, 页码 412-418出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201904683
关键词
azaacenes; electron acceptors; organic photovoltaics; semiconductors; spiro compounds
资金
- Studienstiftung des deutschen Volkes
- DFG [SFB 1249]
The synthesis of five spiro-linked azaacene dimers is reported and their properties are compared to that of their monomers. Dimerization quenches emission of the longer (>=(hetero)tetracenes) derivatives and furnishes amorphous thin-films, the absorption is not affected. The larger derivatives were tested as acceptors in bulk-heterojunction photovoltaic devices with a maximum power conversion efficiency of up to 1.6 %.
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