Hydrogen bonding effects on the surface structure and photoelectrochemical properties of nanostructured SnO2 electrodes modified with porphyrin and fullerene composites

Hiroshi Imahori, Jia Cheng Liu, Hiroki Hotta, Aiko Kira, Tomokazu Umeyama, Yoshihiro Matano, Guifeng Li, Shen Ye, Marja Isosomppi, Nikolai V. Tkachenko, Helge Lemmetyinen

研究成果: Article査読

32 被引用数 (Scopus)

抄録

Hydrogen bonding effects on surface structure, photophysical properties, and photoelectrochemistry have been examined in a mixed film of porphyrin and fullerene composites with and without hydrogen bonding on indium tin oxide and nanostructured SnO2 electrodes. The nanostructured SnO2 electrodes modified with the mixed films of porphyrin and fullerene composites with hydrogen bonding exhibited efficient photocurrent generation compared to the reference systems without hydrogen bonding. Atomic force microscopy, infrared reflection absorption, and ultraviolet-visible absorption spectroscopies and time-resolved fluorescence lifetime and transient absorption spectroscopic measurements disclosed the relationship between the surface structure and photophysical and photoelectrochemical properties relating to the formation of hydrogen bonding between the porphyrins and/or the C60 moieties in the films on the electrode surface. These results show that hydrogen bonding is a highly promising methodology for the fabrication of donor and acceptor composites on nanostructured semiconducting electrodes, which exhibit high photoelectrochemical properties.

本文言語English
ページ(範囲)18465-18474
ページ数10
ジャーナルJournal of Physical Chemistry B
109
39
DOI
出版ステータスPublished - 2005 10 6
外部発表はい

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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