The diffusivity and solubility of Cu in CdTe has been measured between 97° and 300°C using radiotracer techniques. The system studied involved chemically formed Cu2Te films on undoped zone-purified CdTe single crystals. The solubility was found to vary from approximately 3×1016 to 2×1018 cm−3 in the temperature range studied. The diffusivity corresponding to these solubilities is given by D(cm2·sec−1) =3.7× 10−4 exp (−0.67 eV/kT). A much faster diffusing ``tail'' involving about 1015 cm−3 Cu is also observed.
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Woodbury et al. (1968) studied this question.
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