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A donor-acceptor-donor (D-A-D) molecule based on 3-alkoxy-4-cyanothiophene and dithienopyrrole units as active material for organic solar cells

Abstract :

A symmetrical donor-acceptor-donor D-A-D system built by connecting two dithienopyrrole donor blocks to a central electron acceptor obtained by dimerization of 3-alkoxy-4-cyanothiophene has been synthesized and characterized. The compound combines a high photoluminescence efficiency with a broad absorption spectrum in the solid state and a band gap of 1.70 eV. A preliminary evaluation of the potentialities of this type of compound as donor material in bulk heterojunction solar cells using PC61BM as electron acceptor is presented.

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https://hal.univ-angers.fr/hal-03344596
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Soumis le : mercredi 15 septembre 2021 - 10:26:17
Dernière modification le : vendredi 4 février 2022 - 16:16:07

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Ali Yassin, Gurunathan Savitha, Philippe Leriche, Pierre Frère, Jean Roncali. A donor-acceptor-donor (D-A-D) molecule based on 3-alkoxy-4-cyanothiophene and dithienopyrrole units as active material for organic solar cells. New Journal of Chemistry, Royal Society of Chemistry, 2012, 36 (11), pp.2412-2416. ⟨10.1039/c2nj40513j⟩. ⟨hal-03344596⟩

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