Physics
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984git..rept.....s&link_type=abstract
Final Report, 1980 - 1983 Georgia Inst. of Tech., Atlanta. Engineering Experiment Station.
Physics
Crystal Surfaces, Mercury Cadmium Tellurides, Molecular Beam Epitaxy, Reflectance, Reflection, Substrates, X Ray Diffraction, Crystal Growth, Electron Diffraction, Surface Layers
Scientific paper
The design of a molecular beam epitaxial growth system for HgCdTe alloys is described and has been used to grow CdTe and HgCdTe layers. Investigations of the properties of these layers by reflection electron diffraction, u.v. reflectivity and X-ray diffraction measurements show that at present the quality of CdTe substrates and/or surface preparation procedures cause an initial degradation of the quality of the layer, but that these defects can be grown out. For CdTe layers thicker than 5 microns, good quality surfaces are obtained. Epitaxial deposited CdTe has been shown to be remarkably adaptable and (111) orientated CdTe layers have been grown on (100) orientated GaAs and InP substrates. Mercury cadmium telluride layers with x-values between 0.9 and 0.17 were grown on these CdTe buffer layers and demonstrated good crystal quality with spectral response characteristics extending out to 10 microns at 300K.
Cox N. W.
Meeks E. L.
Summers Christopher J.
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