A study of the surface layers formed on CdTe single crystals, following immersion in a range of etchants, has been carried out using X-ray photoelectron spectroscopy. Most etchants lead to a layer of tellurium oxide on the surface and severely deplete the surface region of cadmium. The best procedures for obtaining stoichiometric surfaces are outlined.
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Patterson et al. (1978) studied this question.
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