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Azaacene Dimers: Acceptor Materials with a Twist.

ABSTRACT: 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?%.

SUBMITTER: Ahrens L 

PROVIDER: S-EPMC6973103 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Azaacene Dimers: Acceptor Materials with a Twist.

Ahrens Lukas L   Butscher Julian J   Brosius Victor V   Rominger Frank F   Freudenberg Jan J   Vaynzof Yana Y   Bunz Uwe H F UHF  

Chemistry (Weinheim an der Bergstrasse, Germany) 20191219 2

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 %. ...[more]

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