Structural and electronic properties of the Zn0.5Cd0.5Se(100) surface

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)350-356
Journal / PublicationSurface Science
Volume373
Issue number2-3
Publication statusPublished - 1 Mar 1997
Externally publishedYes

Abstract

The chemical composition, atomic structure and electron affinity of Zn0.5Cd0.5Se(100) grown by molecular beam epitaxy and prepared by Se-decapping are investigated. The Se-terminated surface exhibits a (2 × 1) reconstruction which corresponds to a complete monolayer of Se dimers. The cation-terminated surface exhibits a (1 × 1) structure tentatively attributed to a vacancy structure similar to that of the c(2 × 2) Zn-terminated ZnSe surface, but randomized by the non-periodic distribution of Zn and Cd. The evolution of the electron affinity of the surface is consistent with the formation of a surface dipole induced by a cation-to-anion charge transfer which fills (empties) all anion (cation) dangling bonds. Finally, preferential desorption of Cd is observed for temperatures in excess of 370°C. © 1997 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Surface reconstruction, Ultra-violet photoemission spectroscopy, Work function measurements, Zinc-cadmium selenide

Citation Format(s)

Structural and electronic properties of the Zn0.5Cd0.5Se(100) surface. / Yu, D. Y W; Kahn, A.; Cavus, A.; Tamargo, M. C.

In: Surface Science, Vol. 373, No. 2-3, 01.03.1997, p. 350-356.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review