Azaacene Dimers: Acceptor Materials with a Twist

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 t...

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Detalles Bibliográficos
Autores principales: Ahrens, Lukas, Butscher, Julian, Brosius, Victor, Rominger, Frank, Freudenberg, Jan, Vaynzof, Yana, Bunz, Uwe H. F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6973103/
https://www.ncbi.nlm.nih.gov/pubmed/31657859
http://dx.doi.org/10.1002/chem.201904683
Descripción
Sumario: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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