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

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32 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)18465-18474
Number of pages10
JournalJournal of Physical Chemistry B
Volume109
Issue number39
DOIs
Publication statusPublished - 2005 Oct 6
Externally publishedYes

ASJC Scopus subject areas

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

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    Imahori, H., Liu, J. C., Hotta, H., Kira, A., Umeyama, T., Matano, Y., Li, G., Ye, S., Isosomppi, M., Tkachenko, N. V., & Lemmetyinen, H. (2005). Hydrogen bonding effects on the surface structure and photoelectrochemical properties of nanostructured SnO2 electrodes modified with porphyrin and fullerene composites. Journal of Physical Chemistry B, 109(39), 18465-18474. https://doi.org/10.1021/jp0537409