FEATURES OF CHANGE OF THE SPECTRAL DISTRIBUTION OF THE ABSORPTION COEFFICIENT OF TlGaSe2 CRYSTALS DOPED BY Cd

  • Makhnovets H.V.
  • Myronchuk G.L.
  • Piskach L.V.
DOI: https://doi.org/10.36910/6775-2313-5352-2019-14-15
Keywords: absorption coefficient, width of the band gap, Urbach energy, steepness parameter.

Abstract

In this paper, the technological conditions of crystal growth have been developed, the influence of temperature changes in the range T = 100-300 K on the change of optical properties occurring in TlGaSe2 and TlGaSe2-CdSe crystals has been studied, the width of the band gap in the direct and indirect permissible transitions is estimated, Urbach energy is calculated and the steepness parameter.

Published
2019-12-04
Issue
No 14 (2019): Perspective technologies and devices
Section
Стаття