Germaindacenodithiophene based low band gap polymers for organic solar cells

Zhuping Fei, Raja Shahid Ashraf, Zhenggang Huang, Jeremy Smith, R. Joseph Kline, Pasquale D’angelo, Thomas D. Anthopoulos, James R. Durrant, Iain McCulloch, Martin Heeney

Research output: Contribution to journalArticlepeer-review

55 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 P70CBM afford solar cells with efficiencies of 5.02%. © 2012 Royal Society of Chemistry.
Original languageEnglish (US)
Pages (from-to)2955-2957
Number of pages3
JournalChemical Communications
Issue number24
StatePublished - Feb 22 2012
Externally publishedYes


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