Infrared Sensitizers in Titania-Based Dye-Sensitized Solar Cells using a Dimethylferrocene Electrolyte

Titelangaben

Daeneke, Torben ; Gräf, Katja ; Watkins, Scott E. ; Thelakkat, Mukundan ; Bach, Udo:
Infrared Sensitizers in Titania-Based Dye-Sensitized Solar Cells using a Dimethylferrocene Electrolyte.
In: ChemSusChem. Bd. 6 (2013) Heft 11 . - S. 2056-2060.
ISSN 1864-564X
DOI: https://doi.org/10.1002/CSSC.201300582

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Abstract

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.