Germaindacenodithiophene based low band gap polymers for organic solar cells

Zhuping Fei, Raja Ashraf, Zhenggang Huang, Jeremy Smith, R. Joseph Kline, Pasquale D'Angelo, Thomas Anthopoulos, James R. Durrant, Iain Mcculloch, Martin Heeney*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


We report the first synthesis of a fused germaindacenodithiophene monomer and its polymerisation with 2,1,3-benzothiadiazole by Suzuki polycondensation. The resulting polymer, PGeTPTBT, is semicrystalline, despite the presence of four bulky 2-ethylhexyl groups. Blends with P 70CBM afford solar cells with efficiencies of 5.02%.

Original languageEnglish (US)
Pages (from-to)2955-2957
Number of pages3
JournalChemical Communications
Issue number24
StatePublished - Mar 21 2012

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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