Supramolecular architectures featuring the antenna effect in solid state DSSCs

Literature Information

Publication Date 2017-01-18
DOI 10.1039/C6SE00051G
Impact Factor 6.367
Authors

Georgios Charalambidis, Kostas Karikis, Evangelos Georgilis, Bilel Louahem M'Sabah, Yann Pellegrin, Aurélien Planchat, Bruno Lucas, Anna Mitraki, Johann Bouclé, Fabrice Odobel, Athanassios G. Coutsolelos


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Abstract

Hybrid artificial antenna systems, with implementation of nature's basic concept of self-organization of chromophores, attract vast interest due to their potential application in solar cells. Herein, we report a new supramolecular system comprising two porphyrins, a free base and its zinc analogue, bearing diphenylalanine units. The first is grafted on the TiO2 surface and plays the role of an initiator in the self-assembly of the second, inducing the formation of multi-molecular self-assembled spherical nanostructures. The achieved assemblies display an antenna effect and are used as biomimetic chromophore systems for dye-sensitized solar cells (DSSCs). This self-assembled antenna system gives a proof of concept that multichromophoric supramolecular assemblies based on hydrogen bonds can be of practical use for photovoltaic applications.

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