Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 116, Issue 40, Pages 21190-21200Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp305884u
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Funding
- CNR-Regione Lombardia Mind in Italy project
- Secretaria de Ciencia y Tecnica, Universidad Nacional de Rio Cuarto (Secyt-UNRC)
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCYT) of Argentina
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A series of structurally related sensitizers containing fluorene as a pi-conjugated central core have been synthesized, characterized, and applied in the development of dye-sensitized solar cells (DSSCs). The new electron donor (diphenylamine)-acceptor (cyanoacrylic acid) D-pi-A molecular structures hold perfluoro-tert-butyl substituents in different positions. It is demonstrated that the fluorous substitution pattern remarkably affects the behavior of dyes as photosensitizers in DSSCs, leading to an improvement in the power conversion efficiencies with respect to analogous nonfluorous molecules.
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