Abstract
Abstract In this work, we report the optical properties of bulk Se 93− X Zn 2 Te 5 In X ( X =0, 2, 4, 6 and 10) chalcogenide glasses. Refractive index, extinction coefficient, real dielectric constant ( e ′), imaginary dielectric constant ( e ″), absorption coefficient ( α ) and energy band gap were obtained from analysis of common range (250–1100 nm) UV/Visible transmittance spectrum. Besides, transmission percentages were obtained from FTIR spectra in wave number range 4000–400 cm −1 .The concentration dependence structural phenomena have been explained with help of average coordination 〈 z 〉.
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