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Optical and Electrical Characterization of Copper-and Chlorine-Doped Cadmium Zinc Telluride

  • J. E. Toney (a1), B. A. Brunett (a2), T. E. Schlesinger (a2), E. Cross (a3), F. P. Doty (a4) and R. B. James (a3)...


We have used low-temperature photoluminescence spectroscopy and photo-induced current transient spectroscopy to study the properties of copper-doped Cd1−xZnxTe with x=0.1 and chlorine-doped Cd1−xZnxTe with x=0.2, 0.35 and 0.5. The current-voltage characteristics and detector response were also measured. We observed variations in charge collection and resistivity in the Cu-doped samples which was correlated with variations in PICTS spectra. The Cl-doped material was found to have insufficient resistivity for detector operation.



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