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The present invention relates to novel pyridine compounds that can be used as anchoring ligands in metal-based sensitizing dyes of dye sensitized solar cells (DSCs). The dyes comprising the polypyridine compounds exhibit improved light harvesting ability and lead to increased conversion efficiencies, in particular in thin TiO2 film devices.
Michael Graetzel, Shaik Mohammed Zakeeruddin, Felix Thomas Eickemeyer
Christophe Ballif, Aïcha Hessler-Wyser, Antonin Faes, Umang Bhupatrai Desai, Kléber Nicolet-dit-Félix