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Faculty for Biology, Chemistry, and Earth Sciences

Macromolecular Chemistry I:

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Daeneke, T.; Gräf, K.; Watkins, S.E.; Thelakkat, M.; Bach, U.: Infrared Sensitizers in Titania-Based Dye-Sensitized Solar Cells using a Dimethylferrocene Electrolyte, ChemSusChem, 6(11), 2056–2060 (2013) -- DOI: 10.1002/CSSC.201300582
Two boron-dipyrromethene (BODIPY)-type infrared sensitizers are investigated for use in titania-based dye-sensitized solar cells (DSCs). The DSCs use a solution of dimethylferrocene (Me2Fc) in nitromethane as electrolyte. The titania conduction band edge is fine-tuned by adding lithium ions from LiTFSI, while the choice of dimethylferrocene as redox shuttle provides the ideal driving force for dye regeneration, allowing the BODIPY-based DSCs to reach unprecedented quantum efficiencies in the near-infrared.
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