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Manipulation of the electronic and photovoltaic properties of materials based on small push-pull molecules by substitution of the arylamine donor block by aliphatic groups

Abstract : Push-pull molecules with an arylamine donor block connected to a dicyanovinyl acceptor via a thienyl π-conjugating spacer have been synthesized in order to analyze the effects of replacing an outer phenyl ring of the triphenylamine (TPA) block of a reference compound by methyl, hexyl, heptafluoropentyl and dioxaoctyl groups. Optical, electrochemical and X-ray diffraction data show that these substitutions have minor influence on the energy levels of the molecule but exert a considerable effect on the structure, optical, electrical and photovoltaic properties of the resulting materials.
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https://hal.univ-angers.fr/hal-02564162
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Soumis le : mardi 5 mai 2020 - 17:36:37
Dernière modification le : jeudi 9 décembre 2021 - 15:46:04

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Yue Jiang, Clément Cabanetos, Magali Allain, Siriporn Jungsuttiwong, Jean Roncali. Manipulation of the electronic and photovoltaic properties of materials based on small push-pull molecules by substitution of the arylamine donor block by aliphatic groups. Organic Electronics, Elsevier, 2016, 37, pp.294-304. ⟨10.1016/j.orgel.2016.06.035⟩. ⟨hal-02564162⟩

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