The Unusual Effect of Bandgap Lowering by C 60  on a Conjugated Polymer | Zendy

Sonmez G. | Zendy; Shen C. K. F. | Zendy; Rubin Y. | Zendy; Wudl F. | Zendy

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The Unusual Effect of Bandgap Lowering by C 60 on a Conjugated Polymer

Author(s) -

Sonmez G.,

Shen C. K. F.,

Rubin Y.,

Wudl F.

Publication year - 2005

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200306494

Subject(s) - materials science , thiophene , pyrazine , conjugated system , polymer , covalent bond , band gap , monomer , fullerene , organic solar cell , photochemistry , electron acceptor , acceptor , photovoltaics , fabrication , polymer chemistry , nanotechnology , optoelectronics , organic chemistry , photovoltaic system , chemistry , ecology , physics , composite material , biology , condensed matter physics , medicine , alternative medicine , pathology

Polymers with lowered bandgaps (see Figure) are produced from monomers containing a bisfulleroid as an electron‐acceptor and thiophene as an electron‐donor, fused by a thieno[3,4‐b]pyrazine bridge. The bandgaps could reach as low as 0.25 eV. Electron flow from the poly(thiophene) backbone to the fullerene through the covalently bound thieno[3,4‐b]pyrazine unit in the ground state makes this polymer a good candidate for the fabrication of photovoltaics and photoconductors.

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