Abstract
The composition of polar {0001} surfaces of CdS was investigated by Auger electron spectroscopy. Both the A (0001) or cadmium face and the B (000¯1) or sulphur face showed sulphur enrichment. This enrichment is attributed to the forward scattering of sulphur below the surface and the subsequent exposure of these atoms through continued sputtering. The effect of carbon contamination on the S/Cd ratio on both faces was investigated. The decrease of this ratio with increased carbon contamination is explained in terms of differences in the escape depths of the sulphur and cadmium Auger electrons.
Similar content being viewed by others
References
W. L. Roth, “Physics and Chemistry of II–VI Compounds”, edited by M. Aven and J. S. Prenner (John Wiley, New York, 1967) p. 117.
E. P. Warekois, M. C. Lavine, A. N. Mariano and H. C. Gatos, J. Appl. Phys. 33 (1962) 690.
R. B. Leonard and A. W. Searcy, ibid. 42 (1971) 4047.
S. T. Lam and Z. A. Munir, High Temp. Sci. 12 (1980) 249.
N. Miya, Jpn J. Appl. Phys. 9 (1970) 768.
L. J. Brillson, Surf. Sci. 168 (1986) 260.
J. Morimoto, Jpn Mem. Nat. Def. Acad. 20 (1980) 97.
L. J. Brillson, J. Vac. Sci Technol. 12 (1975) 249.
R. Kelly, Nucl. Instrum. Meth. 149 (1978) 553.
R. E. Honig in “The Characterization of High Temperature Vapors”, edited by J. L. Margrave, (John Wiley, New York, 1967) p. 475.
J. Lagowski, C. L. Balestra and H. C. Gatos, Surf. Sci. 29 (1972) 213.
P. Sigmund, J. Appl. Phys. 50 (1979) 7261.
L. J. Brillson, Surf. Sci. 51 (1975) 45.
C. C. Chang in “Characterization of Solid Surfaces”, edited by P. F. Kane and G. B. Larrabee, (Plenum, New York, 1974) p. 538.
L. J. Brillson and M. L. Slade, Appl. Phys. Lett. 44 (1984) 110.
B. D. Campbell and H. E. Farnsworth, Surf. Sci. 10 (1968) 197.
M. Yamaguchi and K. Ngai, Jpn J. Appl. Phys. 13 (1974) 1897.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chieh, E.K., Munir, Z.A. AES investigation of the composition of polar {0001} surfaces of CdS. J Mater Sci 26, 4268–4272 (1991). https://doi.org/10.1007/BF00543635
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00543635