Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 19, Issue 17, Pages 5220-5230Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201204343
Keywords
all-organic dyes; dyses; pigments; dye sensitized solar cells; energy conversion; sensitizers; synthesis design
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Funding
- US Department of Energy (DoE), Office of Basic Science, as part of the Center for Solar and Thermal Energy Conversion, and Energy Frontier Research Center [DE-SC0000957]
- Energy Frontier Research Center [DE-SC0000957]
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All-organic dyes have shown promising potential as an effective sensitizer in dye-sensitized solar cells (DSSCs). The design concept of all-organic dyes to improve light-to-electric-energy conversion is discussed based on the absorption, electron injection, dye regeneration, and recombination. How the electron-donoracceptor-type framework can provide better light harvesting through bandgap-tuning and why proper arrangement of acceptor/anchoring groups within a conjugated dye frame is important in suppressing improper charge recombination in DSSCs are discussed. Separating the electron acceptor from the anchoring unit in the donoracceptor-type organic dye would be a promising strategy to reduce recombination and improve photocurrent generation.
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