Azaacene Dimers: Acceptor Materials with a Twist

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Lukas Ahrens - , Heidelberg University  (Author)
  • Julian Butscher - , Heidelberg University  (Author)
  • Victor Brosius - , Heidelberg University  (Author)
  • Frank Rominger - , Heidelberg University  (Author)
  • Jan Freudenberg - , Heidelberg University  (Author)
  • Yana Vaynzof - , Heidelberg University  (Author)
  • Uwe H.F. Bunz - , Heidelberg University  (Author)

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 %.

Details

Original languageEnglish
Pages (from-to)412-418
Number of pages7
JournalChemistry - A European Journal
Volume26
Issue number2
Publication statusPublished - 7 Jan 2020
Peer-reviewedYes
Externally publishedYes

External IDs

PubMed 31657859

Keywords

Sustainable Development Goals

ASJC Scopus subject areas

Keywords

  • azaacenes, electron acceptors, organic photovoltaics, semiconductors, spiro compounds

Library keywords