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New D-π-A-conjugated organic sensitizers based on α-pyranylidene donors for dye-sensitized solar cells |
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| Authors: | Emilie Ferreira Pascal Le Poul Nolwenn Cabon Bertrand Caro Françoise Robin-Le Guen Yann Pellegrin Aurélien Planchat Fabrice Odobel |
| Institution: | 1. Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, IUT de Lannion, Rue Edouard Branly, BP 30219, F22302 Lannion Cedex, France;2. Université LUNAM, Université de Nantes, CNRS, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR 6230, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France |
| Abstract: | A series of new push-pull organic dyes incorporating a cyanoacrylic acid group as electron acceptor unit and α-chalcogenopyranylidene group (X = S; O) as electron donor unit has been synthesized, characterized and used as sensitizer for dye-sensitized solar cells (DSSCs). For the first time, α-pyranylidene and thiopyranylidene groups, have been evaluated in DSSC. To obtain the thermodynamic values of the solar cell, an investigation of their electrochemical (CV) and optical properties (UV–vis absorption spectroscopy) is also reported. |
| Keywords: | D-π-A molecules α-Pyranylidene α-Thiopyranylidene Dye-sensitized solar cell |
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