Design, Synthesis and Properties of Low Band Gap Polyfluorenes for Photovoltaic Devices
Paper in proceedings, 2005

Two alternating polyfluorene-polythiophene copolymers contg. different low band gap 4,7-di-2-thienyl-2,1,3-benzothiadiazole-5,6-diamine segments were designed and synthesized for use in optoelectronic devices. The low band gap segments consist of electron donating and accepting moieties which induce a partial charge transfer in the polymer backbone and thereby, a lower band gap. The obtained polyfluorenes, APFO-Green1 and APFO-Green2, were studied by measuring optical absorption and emission at extended wavelengths. Blends of the polyfluorenes with fullerene derivs. exhibit unprecedented photovoltaic response at long wavelengths. [on SciFinder (R)]


Erik Per Perzon

Chalmers, Chemical and Biological Engineering, Polymer Technology

Xiangjun Wang

Fengling Zhang

Wendimagegn Mammo

Juan Luis Delgado

Pilar de la Cruz

Olle Inganaes

Fernando Langa

Mats Andersson

Chalmers, Chemical and Biological Engineering, Polymer Technology

Synthetic Metals

Vol. 154 1-3 53-56

Subject Categories

Polymer Chemistry

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