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Structural Rigidity, Percolation and Transition-Temperature Study of the Ge19Se81-xSbx System

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Abstract:

Selenium-based glasses are attractive candidate materials because of their low transmission losses and other optical properties. In the present paper, samples of Ge19Se81-xSbx (x = 0, 4, 8, 12, 16, 17.2, 20) were prepared by using the melt-quench technique, and their X-ray diffraction spectra were studied. Some of the physical parameters were calculated theoretically. It was observed that the glass transition temperature increased up to x = 17.2 and then decreased whereas the theoretically calculated band-gap decreased with increasing Sb content.

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Defects and Diffusion in Ceramics XII View Preview

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Periodical:

Defect and Diffusion Forum (Volumes 316-317)

Pages:

37-44

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.316-317.37

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Online since:

May 2011

Authors:

Neha Sharma, Sunanda Sharda, Vineet Sharma, Pankaj Sharma

Keywords:

Energy Gap, Rigidity, Structure, Transition Temperature

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