Güler, İpekGüler, İpekIşık, MesutGasanly, Nizami MamedGasanova, L. G.Babayeva, Raziye2020-02-212020-02-212019Guler, I...et al. (2019). "Structural and Optical Properties of Ga2Se3 Crystals by Spectroscopic Ellipsometry", Journal of Computatonal and Nonlinear Dynamics, Vol. 14, No. 4, pp. 2418-2422.0361-5235https://hdl.handle.net/20.500.12416/2494Optical and crystalline structure properties of Ga2Se3 crystals were analyzed utilizing ellipsometry and x-ray diffraction (XRD) experiments, respectively. Components of the complex dielectric function (epsilon=epsilon(1)+i epsilon(2)) and refractive index (N=n+ik) of Ga2Se3 crystals were spectrally plotted from ellipsometric measurements conducted from 1.2eV to 6.2eV at 300K. From the analyses of second-energy derivatives of epsilon(1) and epsilon(2), interband transition energies (critical points) were determined. Absorption coefficient-photon energy dependency allowed us to achieve a band gap energy of 2.02eV. Wemple and DiDomenico single effective oscillator and Spitzer-Fan models were accomplished and various optical parameters of the crystal were reported in the present work.eninfo:eu-repo/semantics/closedAccessSemiconductorsOptical PropertiesOptical ConstantsCritical PointsArticle1442418242210.1007/s11664-019-07000-4