Synthesis and properties of fluorene-based polyheteroarylenes for photovoltaic devices

Raja Ashraf*, Harald Hoppe, Munazza Shahid, Gerhard Gobsch, Steffi Sensfuss, Elisabeth Klemm

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Novel copolymers consisting of the alternating push-pull comonomers fluorene and thieno[3,4-b]pyrazine/quinoxaline were synthesized by a palladium-catalyzed Suzuki cross-coupling reaction in 60-80% yields. The structure of the deeply colored copolymers was confirmed with 1H and 13C NMR. All the new materials were characterized with spectroscopic and electrochemical methods. Bulk heterojunction organic solar cells based on some of the novel polymers in combination with the well-known fullerene acceptor [6,6]-phenyl C61-butyric acid methyl ester were fabricated, and their photovoltaic parameters were measured.

Original languageEnglish (US)
Pages (from-to)6952-6961
Number of pages10
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume44
Issue number24
DOIs
StatePublished - Dec 15 2006

Keywords

  • Conjugated polymers
  • Heteroatom-containing polymers
  • Low-band-gap polymers
  • Organic solar cells
  • Polycondensation

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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