Novel Anthrathiophene-Based Small Molecules as Donor Material for Organic Photovoltaics: Synthesis and Light-Induced EPR Study

Alexandra A. Shatrova, Denis S. Baranov, Mikhail N. Uvarov, Maxim S. Kazantsev, Evgeni M. Glebov, Dmitry S. Fadeev, Leonid V. Kulik

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

A novel anthrathiophene-based compound, 1,4-bis((5-(6,11-dioxoanthra[2,1-b]thiophene-2-yl)thien-2-yl)ethynyl)-2,5-bis(octyloxy)benzene, was synthesized and characterized. The optical absorption spectrum of the synthesized compound in film is strongly red-shifted as compared to the solution spectrum. The energies of frontier orbitals measured by cyclic voltammetry show that this compound can act as electron donor in a composite with the widely used fullerene derivative PCBM. This is confirmed by light-induced electron transfer from it to PCBM evidenced from light-induced EPR spectroscopy. The spectroscopic data suggest that anthrathiophene is a promising platform for synthesis of small-molecular electron donors for organic solar cells.

Original languageEnglish
Pages (from-to)425-438
Number of pages14
JournalZeitschrift fur Physikalische Chemie
Volume231
Issue number2
DOIs
Publication statusPublished - 1 Feb 2017

Keywords

  • anthrathiophene
  • charge transfer
  • electrochemistry
  • EPR
  • luminescence
  • organic photovoltaics
  • synthesis

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