Bulk heterojunction solar cells based on a low-bandgap carbazole-diketopyrrolopyrrole copolymer

Bulk heterojunction solar cells based on a low-bandgap carbazole-diketopyrrolopyrrole copolymer

Bulk heterojunction (BHJ) solar cells fabricated with a phase separated nanomaterial comprising a carbazole-diketopyrrolopyrrole copolymer ( PCBTDPP ) and [6,6]-phenyl C 70 -butyric acid methyl ester ( PC 70 BM ) are demonstrated with power conversion efficiency > 3.5 % . The P C B T D P P : PC 7...

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Veröffentlicht in:Applied physics letters 2010-11, Vol.97 (20), p.203303-203303-3
Hauptverfasser: Jo, Jang, Gendron, David, Najari, Ahmed, Moon, Ji Sun, Cho, Shinuk, Leclerc, Mario, Heeger, Alan J.
Format: Artikel
Sprache:eng
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Zusammenfassung:Bulk heterojunction (BHJ) solar cells fabricated with a phase separated nanomaterial comprising a carbazole-diketopyrrolopyrrole copolymer ( PCBTDPP ) and [6,6]-phenyl C 70 -butyric acid methyl ester ( PC 70 BM ) are demonstrated with power conversion efficiency > 3.5 % . The P C B T D P P : PC 70 BM BHJ nanomorphology was controlled by changing the length of the alkyl side-chain of the polymer and by utilizing processing additives.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3508951