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

60 Citations (Scopus)

Abstract

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
Volume51
Issue number40
DOIs
Publication statusPublished - 2012 Oct 1

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Electrolytes
Electrons
Reaction rates
Oxidation-Reduction
Dye-sensitized solar cells
nitroxyl

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

Cite this

Nitroxide radicals as highly reactive redox mediators in dye-sensitized solar cells. / Kato, Fumiaki; Kikuchi, Akitomo; Okuyama, Takumi; Oyaizu, Kenichi; Nishide, Hiroyuki.

In: Angewandte Chemie - International Edition, Vol. 51, No. 40, 01.10.2012, p. 10177-10180.

Research output: Contribution to journalArticle

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