Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-10T09:10:59.386Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Electrical Measurements of Photo-catalysis on Rutile TiO2(11O)

Published online by Cambridge University Press:  11 February 2011

Kiyohiro Kaisei ,
Kenji Ishida ,
Toshihisa Horiuchi  and
Kazumi Matsushige
Kiyohiro Kaisei
Affiliation:
Kyoto University, Dept of Electronic Science and Engineering, Kyoto, Japan
Kenji Ishida
Affiliation:
Kyoto University, Dept of Electronic Science and Engineering, Kyoto, Japan
Toshihisa Horiuchi
Affiliation:
Kyoto University, Dept of Electronic Science and Engineering, Kyoto, Japan
Kazumi Matsushige
Affiliation:
Kyoto University, Dept of Electronic Science and Engineering, Kyoto, Japan
Get access

Abstract

We have studied the electronic properties of single crystal rutile TiO2(110) with surface electrical techniques; impedance spectroscopy and high sensitivity DC measurements. In the impedance spectroscopy we observed a spectrum involved in the dissociation of pure water on the TiO2 surface under UV irradiation. In the high sensitivity DC measurements we observed oscillations of the surface photo-current with three different long periodicities, which might have originated from the oxidation and reduction processes of water on TiO2 via photo-catalytic reactions induced by UV irradiation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 751: Symposium Z – Structure-Property Relationships of Oxide Surfaces and Interfaces II , 2002 , Z3.49
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Wang, R., Hashimoto, K., Fujishima, A., Nature 388, 431(1997);Google Scholar
Chikuni, M., Kojima, E., Shimohigoshi, M., Watanabe, T., Adv. Mater 10, 135 (1998).Google Scholar
[2] Hirakawa, T., Kominami, H., Ohtani, B., and Nosaka, Y., J. Phys. Chem. B 105, 6993 (2001).Google Scholar
[3] Ishibashi, K., Fujishima, A., Watanabe, T., Hashimoto, K., J. Phys. Chem. B 104, 4934 (2000).Google Scholar
[4] Primet, M., Pichat, P., and Mathieu, M.-V, J. Phys. Chem. 75, 1216 (1971).Google Scholar
[5] Brookes, M., Muryn, C. A., and Thornton, G., Phys. Rev. Lett. 87, 266103 (2001).Google Scholar
[6] Sakai, N., Fujishima, A., Watanabe, T., Hashimoto, K., J. Phys. Chem. B 105, 3023 (2001).Google Scholar