Dispersion Analysis of SnS and SnSe

Authors: HALUK ŞAFAK, MUSTAFA MERDAN, Ö. FARUK YÜKSEL

Abstract: The reflectance spectra of single crystals of SnS and SnSe were measured at normal incidence by unpolarized light. The refractive indices of speciemens were calculated by Kramers-Kronig Analysis. On the basis of the Wemple diDomenico single oscillator model, the dispersion parameters were determined. It is found that the parameters obtained by unpolarized light are, in general close to those reported for polarized cases. Morever, a close similarity were observed with E//b polarization for SnS.

Keywords: semiconductors, optical constant, dispersion analysis

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