NJGC  Vol.7 No.4 , October 2017
Structural, Morphology and Some Optical Properties of Chalcogenide Ga80-xSexTe20 (Where x = 10%, 15% and 20%) Glassy Material
ABSTRACT
Ga80-xSexTe20 amorphous system was prepared by conventional technique. Structural, morphology and optical properties have been investigated. X-ray diffraction (XRD) patterns reveal the non-crystalline nature of the prepared sample. Differential thermal analysis (DTA) traces indicate the presence glass transition temperature Tfor all samples below 500°C. Addition Tg values increases by increasing Se content. Energy dispersive X-ray spectroscopy (EDX) data shows good agreement with actual composition. Moreover, surface characterization was achieved by scanning electron microscope (SEM). The patterns confirmed the non-crystalline nature. In order to analyze the data, the cohesive energy C.E was calculated by all three composition optical properties that have been investigated in the wavelength range 500 - 2500 nm. Reflectivity R and transmitivity T spectrum were used to estimate the band gap energy using UV-Visible absorption spectrum. It is worthy mention that the optical band gap follows the Tg and cohesive energy behavior, where it increases by increasing Se content.
Cite this paper
Al Mokhtar, K. and Alsobhi, B. (2017) Structural, Morphology and Some Optical Properties of Chalcogenide Ga80-xSexTe20 (Where x = 10%, 15% and 20%) Glassy Material. New Journal of Glass and Ceramics, 7, 91-99. doi: 10.4236/njgc.2017.74008.
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