Efficient solution-processed photovoltaic cells based on an anthradithiophene/fullerene blend

Matthew T. Lloyd, Alex C. Mayer, Sankar Subramanian, Devin A. Mourey, Dave J. Herman, Amit V. Bapat, John E. Anthony, George G. Malliaras

Research output: Contribution to journalArticlepeer-review

196 Scopus citations

Abstract

We report photovoltaic cells based on solution-processed blends using a novel anthradithiophene derivative as the donor and a fullerene derivative as the acceptor. Solvent vapor annealing of these blends leads to the formation of spherulites, which consist of a network of anthradithiophene crystallites dispersed in an amorphous matrix composed primarily of fullerene. We observe a direct correlation between coverage of a device with spherulites and its performance. Devices with 82% spherulite coverage reach a power conversion efficiency of 1%, which makes them one of the highest performing solution-processed small molecule photovoltaic cells to date.

Original languageEnglish
Pages (from-to)9144-9149
Number of pages6
JournalJournal of the American Chemical Society
Volume129
Issue number29
DOIs
StatePublished - Jul 25 2007

ASJC Scopus subject areas

  • Catalysis
  • Chemistry (all)
  • Biochemistry
  • Colloid and Surface Chemistry

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