Nitroxide radicals as highly reactive redox mediators in dye-sensitized solar cells

Fumiaki Kato, Akitomo Kikuchi, Takumi Okuyama, Kenichi Oyaizu, Hiroyuki Nishide

Research output: Contribution to journalArticle

63 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)10177-10180
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number40
Publication statusPublished - 2012 Oct 1



  • charge transfer
  • dye-sensitized solar cells
  • electrochemistry
  • phase transitions
  • radicals

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

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