Skip to main content Accessibility help
×
Home

Inhomogeneous Electric Potential Distributions Induced by in Clusters Grown on P-WSE2 (0001) Surfaces

  • R. Schlaf (a1), H. Sehnert (a1), C. Pettenkofer (a1) and W. Jaegermann (a1)

Abstract

In deposited on UHV cleaved p-WSe2 (0001) is investigated by photoelectron spectroscopy (XPS, UPS), low energy electron diffraction (LEED), scanning electron microscopy (SEM), and surface photovoltage (SPV) experiments. In forms an atomically abrupt, non-reactive metallic overlayer on the substrate. It grows in threedimensional clusters (Volmer-Weber growth mode). The experimentally observed band bending induced by In at RT is smaller than expected by the Schottky limit. Photoemission source induced SPV values at 100 K are saturated and different for the substrate and In overlayer emission lines. The results are explained by laterally inhomogeneous electric potential distributions due to the In clustering on the semiconductor surface.

Copyright

References

Hide All
1 Rhoderick, E. H. and Williams, R. H., Metal-Semiconductor Contacts, 2nd ed. (Oxford SciencePublishers, Oxford, 1988)
2 Metal Semiconductor Schottky Barrier Junctions and Their Applications, ed. by Sharma, B. L. (Plenum, N.Y., 1984)
3 Brillson, L. J., Surf.Sci.Rep. 2,1 (1982)
4 Mönch, W., Festkorperprobleme (Advances in Solid State Physics), ed. by Grosse, P. (Pergamon, Braunschweig, 1986), Vol. XXVl, 1. 67
5 Spicer, W. E., Kendelewicz, T., Newman, N., Cao, R., McCants, C., Miyano, K., Lindau, I., Liliental-Weber, Z. and Weber, E. R., Appl.Surf.Sci 33/34, 10091029, (1988)
6 Bardeen, J., Phys.Rev. 71,717, (1947)
7 Schottky, W., Z.Phys 113,367, (1939)
8 Jaegermann, W. and Tributsch, H.: Interfacial Properties of Semiconducting Transition Metal Dichalcogenides
9 Takayanagi, K., Shinozawa, H., Yagi, K. and Honjo, G., Surf. Sci. 41, 581583, (1974)
10 Jaegermann, W., Pettenkofer, C. and Parkinson, B. A., Phys. Rev. B 42(12), 74877496, (1990)
1lKennou, S., Ladas, S. and Papageorgopoulos, C. A., Surf. Sci. 164, 290, (1985)
12 Ladas, S., Kennou, S., Karamatos, M., Foulias, S. D. and Papageorgopoulos, C. A., Surf. Sci. 189/190, 261 (1987)
13 Spicer, W. E., Chye, P. W., Skeath, P. R., Su, C. Y. and Lindau, I., J. Vac. Sci. Technol. 16(5), 1422, (1979)

Inhomogeneous Electric Potential Distributions Induced by in Clusters Grown on P-WSE2 (0001) Surfaces

  • R. Schlaf (a1), H. Sehnert (a1), C. Pettenkofer (a1) and W. Jaegermann (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed