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The European Physical Journal D

, Volume 43, Issue 1–3, pp 193–196 | Cite as

Photosensitization of oxygen molecules by surface-modified hydrophilic porous Si

  • M. FujiiEmail author
  • N. Nishimura
  • H. Fumon
  • S. Hayashi
  • K. Akamatsu
  • T. Tsuruoka
  • M. Shimada
  • H. Katayama
  • D. Kovalev
  • B. Goller
Cluster Reactivity and Nano-catalysis

Abstract.

Hydrophilic porous Si is prepared by surface modification with polyethylene oxide (PEO) molecules. The surface modification is confirmed by infrared absorption spectroscopy and photoluminescence spectroscopy. The effect of surface modification on the efficiency of photosensitization of oxygen molecules, i.e., the efficiency of singlet oxygen generation, is studied. The PEO-terminated hydrophilic porous Si is shown to hold the photosensitization ability although the efficiency is reduced by the modification.

PACS.

71.35.Gg Exciton-mediated interactions 33.50.Hv Radiationless transitions, quenching 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • M. Fujii
    • 1
    Email author
  • N. Nishimura
    • 1
  • H. Fumon
    • 1
  • S. Hayashi
    • 1
  • K. Akamatsu
    • 2
  • T. Tsuruoka
    • 2
  • M. Shimada
    • 2
  • H. Katayama
    • 3
  • D. Kovalev
    • 4
  • B. Goller
    • 4
  1. 1.Department of Electrical and Electronics EngineeringFaculty of Engineering, Kobe UniversityKobeJapan
  2. 2.Faculty of Science and Engineering, Konan UniversityKobeJapan
  3. 3.Institute for Chemical Research, Kyoto UniversityKyotoJapan
  4. 4.Department of PhysicsUniversity of BathAYUK

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