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Effect of Doping with Praseodymium on the Crystal Structure and Optical Absorption Edge of the TlGaS2 Compound

  • P. G. Ismailova,
  • N. Z. Gasanov,
  • A. A. Gajieva,
  • K. M. Guseinova

摘要

Abstract—

We have grown single crystals of solid solutions based on the layered compound semiconductor TlGaS2 containing up to 2 mol % praseodymium and characterized them by X-ray diffraction. The optical absorption edge of the TlGaS2〈Pr〉 solid solutions has been studied in the temperature range 100–200 K, and the edge exciton peak position has been determined as a function of temperature for all of the TlGaS2〈Pr〉 compositions studied.