UV treatment effect on TiO2 electrodes in dye-sensitized solar cells with N719 sensitizer investigated by infrared absorption spectroscopy

Fumihiko Hirose, Koei Kuribayashi, Takahiko Suzuki, Yuzuru Narita, Yasuo Kimura, Michio Niwano

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

cis-di(thiocyanato)bis(2, 2′ -bipyridyl- 4, 4″ -dicarboxylate)rutheniumu(II) (N719) adsorption on anatase Ti O2 electrodes in dye-sensitized solar cells has been investigated using infrared absorption spectroscopy with a multiple internal reflection technique. We have found that the N719 dye dissociatively adsorbs on OH sites to the Ti O2 surfaces with its carboxy group. The intentional generation of the OH sites on the Ti O2 electrodes with a photocatalytic reaction by UV irradiation in air prior to the N719 dye adsorption is effective in increasing the short-circuit current of the dye-sensitized solar cells.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume11
Issue number7
DOIs
Publication statusPublished - 2008 May 26

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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