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Preparation of cadmium telluride single crystals for nuclear detectors

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Czechoslovak Journal of Physics B Aims and scope

Abstract

Cadmium telluride single crystals, both undoped and doped with chlorine, bromine and iodine, were grown from tellurium melt. The electrical conductivity, Hall effect and photo-Hall effect were investigated. Acceptor levels located at 0·15 eV, 0·5 eV and 0·9 eV above the top of the valence band were found in samples of this semi-insulating material. A model is proposed which describes the compensation of cadmium vacancies and complexes by chlorine atoms. Chlorinedoped CdTe single crystals have proved suitable for preparation of the detectors of gammaradiation.

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Authors and Affiliations

  1. Institute of Physics, Charles University, Prague

    P. Höschl, P. Polívka, V. Prosser & A. Sakalas

  2. Kapsukas State University, Vilnius, USSR

    A. Sakalas

Authors
  1. P. Höschl
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  2. P. Polívka
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  3. V. Prosser
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  4. A. Sakalas
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Additional information

We would like to express our thanks to V.Kubla for his experimental assistance in growing the crystals and to S.Kubalkova, and K.Smakal for their help in electrical measurements.

This work was supported by Czechoslovak Atomic Energy Commission.

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Höschl, P., Polívka, P., Prosser, V. et al. Preparation of cadmium telluride single crystals for nuclear detectors. Czech J Phys 25, 585–596 (1975). https://doi.org/10.1007/BF01589432

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  • DOI: https://doi.org/10.1007/BF01589432

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