Effect of Pre-Growth Annealing on the Properties of Nonpurified Cadmium Telluride Single Crystals Obtained by Sublimation Method

Authors

  • V.D. Popovych Ivan Franko Drogobych State Pedagogical University
  • Yu.P. Gnatenko Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • P.M. Bukivskij Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • P. Potera University of Rzeszow

DOI:

https://doi.org/10.15407/ujpe57.8.844

Keywords:

-

Abstract

The effect of high-temperature annealing of a nominally undoped CdTe charge under dynamic vacuum conditions on the electrical and optical properties of single crystals grown from this charge with the use of a modified physical vapor transport method has been examined. It is shown that the annealing results in the disappearance or an extinction of chlorine-related lines in the low-temperature photoluminescence spectra and the absorption bands in the long-wavelength absorption-edge spectra of the crystals concerned, as well as in a drastic fall of their resistivity. The observed alterations are explained by a removal of the Cl impurity during the annealing owing to a high volatility of chlorine compounds.

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Published

2012-08-30

How to Cite

Popovych В., Gnatenko Ю., Bukivskij П., & Potera П. (2012). Effect of Pre-Growth Annealing on the Properties of Nonpurified Cadmium Telluride Single Crystals Obtained by Sublimation Method. Ukrainian Journal of Physics, 57(8), 844. https://doi.org/10.15407/ujpe57.8.844

Issue

Section

Solid matter

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