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Nitroxide Radicals as Highly Reactive Redox Mediators in Dye‐Sensitized Solar Cells
Author(s) -
Kato Fumiaki,
Kikuchi Akitomo,
Okuyama Takumi,
Oyaizu Kenichi,
Nishide Hiroyuki
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201205036
Subject(s) - dye sensitized solar cell , redox , radical , nitroxide mediated radical polymerization , electrolyte , chemistry , electron transfer , photochemistry , combinatorial chemistry , chemical engineering , inorganic chemistry , organic chemistry , polymer , radical polymerization , electrode , polymerization , engineering
Exchanged : The organic radical 2‐azaadamantan‐ N ‐oxyl (AZA; see picture) is found to be a stable and highly reactive redox mediator in dye‐sensitized solar cell (DSSC) electrolytes. This radical has an appropriate redox potential and significantly high values for the diffusivity, heterogeneous electron‐transfer rate, and electron self‐exchange reaction rate. In a DSSC the AZA‐based electrolyte achieves an excellent photovoltaic performance.