Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-02T22:25:57.222Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth and Epitaxy of Au on TiO2 (110)

Published online by Cambridge University Press:  15 February 2011

F. Cosandey ,
R. Persaud ,
L. Zhang  and
T. E. Madey
F. Cosandey
Affiliation:
Dept. of Ceramics and Rutgers University, Piscataway, NJ 08855.
R. Persaud
Affiliation:
Dept. of Physics and Astronomy Rutgers University, Piscataway, NJ 08855.
L. Zhang
Affiliation:
Dept. of Physics and Astronomy Rutgers University, Piscataway, NJ 08855.
T. E. Madey
Affiliation:
Dept. of Physics and Astronomy Rutgers University, Piscataway, NJ 08855.
Get access

Abstract

The growth of Au on TiO2 (110) has been examined by high resolution fielc emission scanning electron microscopy (HRSEM) in combination with electror backscattered diffraction (EBSD). The Au was evaporated under UHV conditions onto stoichiometric TiO2 (110) surfaces in the temperature range from 300 to 475 K. At 300 K and for low coverages (<1.5 nm), Au grows as discrete particles. For thicker coverages (>1.5 nm), the particles coalesce to form a network, but percolation is absent even aftel deposition of 5 nm Au. Upon annealing or deposition (≥ 5 nm) at 475 K, the particles, appear clearly faceted and are oriented along specific crystallographic directions. EBSE patterns taken from individual particles reveal two equivalent domain orientations rotated by 180° with epitaxial orientation relationships corresponding to (111)Au//(110)TiO and [110] // [001]TiO2 (Orientation I) and [110] // [001]TiO2.(Orientation II)

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 440: Symposia CA – Structure and Evolution of Surfaces , 1996 , 383
Copyright
Copyright © Materials Research Society 1997

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

1. Haruta, M., Yamada, N., Kobayashi, T. and Iijima, S., J. of Catalysis, 115, 301 (1989).Google Scholar
2. Funazaki, N., et al., Sensors and Actuators, B 13–14, 536 (1993).Google Scholar
3. Lin, S. D., Bollinger, M. and Vannice, M. A., Catalysis Letters, 17, 245 (1993).Google Scholar
4. Pan, J.-M., Maschhoff, B. L., Diebold, U. and Madey, T. E., J. Vac. Sci. Tech. A 10, 2470 (1992).Google Scholar
5. Diebold, U., Pan, J.-M. and Madey, T. E., Surf. Sci. 331–333, 845 (1995)Google Scholar
6. Zhang, L., Persaud, R. and Madey, T. E., (1997) (To Be Published)Google Scholar
7. Zinke-Allmang, M., Feldman, L. C. and Grabow, M. H., Surf. Science Report, 16, 377 (1992).Google Scholar
8. Lu, P. and Cosandey, F., Interface Science, 2, 169 (1994).Google Scholar