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Bridged Phthalocyanine Systems for Sensitization of Nanocrystalline TiO2 Films

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Author(s): Gloria Zanotti | Nicola Angelini | Sara Notarantonio | Anna Maria Paoletti | Giovanna Pennesi | Gentilina Rossi | Angelo Lembo | Daniele Colonna | Aldo Di Carlo | Andrea Reale | Thomas M. Brown | Giuseppe Calogero

Journal: International Journal of Photoenergy
ISSN 1110-662X

Volume: 2010;
Date: 2010;
Original page

ABSTRACT
Phthalocyanines based-dyes represent attractive alternatives to the expensive and polluting pyridyl based Ru complexes because of their photochemical and thermal stability, they do show in fact intense absorption in the UV/blue (Soret band) and the red/near IR (Q band) spectral regions and appear very promising as sensitizer dyes for DSSC. In this contribution we review the state of the art and the recent progress in the application of these materials as dyes for DSSC and present three new dyes which are bridged derivatives of Iron phthalocyanine. Synthesis, optical properties, electrochemical characterization and device performances are discussed with regard to the different substitution degree of the macrocycle.
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