title: Theoretical insights on the electronic properties of eosin Y, an organic dye for photovoltaic applications.
abstract: A theoretical analysis, based on density functional theory, has been carried out on the electronic properties of eosin yellowish (2',4',5',7'-tetrabromofluorescein), a dye used for photovoltaic applications. In particular different oxidation states of the bare molecule as well as its complexes with a Zn dication have been considered, with the aim to gain some insights on its electro- and photochemical behavior. The calculations have been carried out both in the gas phase and in solution, this last modeled by a continuum model. Besides the agreement with the experimental data, our results allow for a better interpretation of the spectroscopic properties of this dye and their tuning by interaction with the solvent or metal atom in aqueous solution.
authors.affiliation: Laboratoire d'Electrochimie et de Chimie Analytique, CNRS-UMR 7575, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
authors.forename: Sandrine
authors.initials: S
authors.lastname: Hazebroucq
authors.forename: Frédéric
authors.initials: F
authors.lastname: Labat
authors.forename: Daniel
authors.initials: D
authors.lastname: Lincot
authors.forename: Carlo
authors.initials: C
authors.lastname: Adamo