Compositional dependence of refractive index and oscillator parameters in T1GaS(2x)Se(2(1-x)) layered mixed crystals (0 <= x <= 1)


HASANLI N.

MATERIALS CHEMISTRY AND PHYSICS, cilt.136, ss.259-263, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 136 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.matchemphys.2012.06.064
  • Dergi Adı: MATERIALS CHEMISTRY AND PHYSICS
  • Sayfa Sayıları: ss.259-263

Özet

Optical characterization of TIGaS2xSe2(1-x) mixed crystals have been carried out at room temperature using the transmission and reflection measurements in the wavelength range of 400-1100 nm. The spectral dependence of the refractive index for all compositions of studied crystals were obtained. The dispersion of the refractive index is discussed in terms of the Wemple-DiDomenico single-effective-oscillator model. The compositional dependencies of refractive index dispersion parameters: oscillator energy, dispersion energy and zero-frequency refractive index were revealed. (c) 2012 Elsevier B.V. All rights reserved.