Abstract
The Effects of Cd-atmosphere annealing and Cd-dip treatment on high purity CdTe single crystals have been studied thoroughly. It has been presented that the Cd-dip treatment could change the dominant (A 0, X) peak in PL spectrum for as-grown crystal into (D 0, X) for Cd-dipped crystal. This result shows that the conductivity of specimen has been converted from p-type into n-type. By measuring the reflective spectrum of the Cd-dipped specimen, very clear free-exciton (FE) emission peak has been detected. This observation of FE emission indicates that the CdTe single crystal is of very high purity.
Published Version
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