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Substituted carboxyphthalocyanines (I), wherein both the tert-butyl and carboxyl groups located in the four isoindole rings are located independently in any of the four positions of the corresponding benzene ring of each isoindole ring, its regioisomers and mixtures thereof, can be used in the manufacture of organic and hybrid solar cells or as a photoactive dyes for molecular photovoltaic devices.
Christophe Ballif, Aïcha Hessler-Wyser, Antonin Faes, Umang Bhupatrai Desai, Kléber Nicolet-dit-Félix
Michael Graetzel, Shaik Mohammed Zakeeruddin, Felix Thomas Eickemeyer