Journal of Electronic Materials

, Volume 29, Issue 6, pp 718–722

Wurtzite CdS on CdTe grown by molecular beam epitaxy

  • P. Boieriu
  • R. Sporken
  • Yan Xin
  • N. D. Browning
  • S. Sivananthan
Special Issue Paper

Abstract

Growth of single crystal wurtzite cadmium sulfide on CdTe(111)B substrates has been achieved using molecular beam epitaxy. Reflection high-energy electron diffraction (RHEED) indicates smooth surface morphology for several hundreds of nanometers after nucleation. X-ray diffraction measurements confirm the crystalline orientation to be [0001] in the growth direction. X-ray photoelectron spectroscopy (XPS) indicates mostly stoichiometric CdS layers and the existence of a reaction at the interface. Sulfur incorporation into CdTe for various S fluxes has been investigated by Auger electron spectroscopy (AES). High-resolution TEM images of the interface between such epilayers were recorded. During the growth In was used as an in-situ dopant. The concentration and uniformity of In was determined by secondary ion mass spectrometry. Indium profiles were obtained for concentrations ranging from 5 × 1017 to 1.4 × 1021 cm−3. The experimental concentration agrees well with the variation expected from the In flux.

Key words

Cadmium sulfide Auger electron spectroscopy XPS SIMS II-VI heterostructures MBE 

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Copyright information

© TMS-The Minerals, Metals and Materials Society 2000

Authors and Affiliations

  • P. Boieriu
    • 1
  • R. Sporken
    • 1
    • 2
  • Yan Xin
    • 1
  • N. D. Browning
    • 1
  • S. Sivananthan
    • 1
  1. 1.Physics Department (M/C 273)University of Illinois at ChicagoChicago
  2. 2.Laboratoire Interdisciplinaire de Spectroscopie ElectroniqueFacultés Universitaires Notre-Dame de la PaixNamurBelgium

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