New Synthetic Routes towards Soluble and Dissymmetric Triphenodioxazine Dyes Designed for Dye‐Sensitized Solar Cells |
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Authors: | Dr Yohann Nicolas Fouzia Allama Dr Marc Lepeltier Dr Julien Massin Dr Frédéric Castet Dr Laurent Ducasse Dr Lionel Hirsch Dr Zahia Boubegtiten Dr Gediminas Jonusauskas Dr Céline Olivier Prof Thierry Toupance |
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Affiliation: | 1. University of Bordeaux, Institut des Sciences Moléculaires, UMR 5255 CNRS, 351 cours de la Libération, 33405 Talence (France), Fax: (+33)?5‐40‐00‐69‐94;2. University of Bordeaux, Intégration des Matériaux aux Systèmes, UMR 5218 CNRS, 16 avenue Pey Berland, 33607 Pessac Cedex (France);3. University of Bordeaux, Laboratoire Ondes et Matière d'Aquitaine, UMR 5796 CNRS, 351 cours de la Libération, 33405 Talence (France) |
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Abstract: | New π‐conjugated structures are constantly the subject of research in dyes and pigments industry and electronic organic field. In this context, the triphenodioxazine (TPDO) core has often been used as efficient photostable pigments and once integrated in air stable n‐type organic field‐effect transistor (OFET). However, little attention has been paid to the TPDO core as soluble materials for optoelectronic devices, possibly due to the harsh synthetic conditions and the insolubility of many compounds. To benefit from the photostability of TPDO in dye‐sensitized solar cells (DSCs), an original synthetic pathway has been established to provide soluble and dissymmetric molecules applied to a suitable design for the sensitizers of DSC. The study has been pursued by the theoretical modeling of opto‐electronic properties, the optical and electronic characterizations of dyes and elaboration of efficient devices. The discovery of new synthetic pathways opens the way to innovative designs of TPDO for materials used in organic electronics. |
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Keywords: | dyes/pigments donor– acceptor systems photostability solar cells synthetic methods |
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