ACTA

Structure, Surface Morphology and Optical Properties of Thin Films of ZnS and CdS Grown by Atomic Layer Epitaxy

A. Szczerbakow^a, M. Godlewski^a, E. Dynowska^a, V.Yu. Ivanov^a, K. Świątek^a, E.M. Goldys^b and M.R. Phillips^c
^aInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
^bSemicond. Sci. & Technol. Lab., Macquarie Univ., North Ryde, 2109 NSW, Australia
^cMicrostructural Analysis Unit, University of Technology, Sydney, Australia

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In this communication we report successful growth of monocrystalline cubic ZnS and monocrystalline and polycrystalline cubic and wurtzite films of CdS by atomic layer epitaxy. Structural and optical properties of these films are analysed. ZnS (and CdS/ZnS) films grown on GaAs substrate are cubic. Atomic layer epitaxy grown films provide several advantages over ZnS and CdS materials grown by other techniques, especially compared to bulk material, which is grown at higher temperatures. First results for ZnS/CdS/ZnS quantum well structures are also discussed.

DOI: 10.12693/APhysPolA.94.579
PACS numbers: 68.55.Jk, 68.60.-p, 81.15.Gh