Fm STRUCTURAL INVESTIGATION OF SBGESE GLASSES BY HIGH RESOLUTION X-RAY PHOTOELECTRON SPECTROSCOPY (original) (raw)

2011

Abstract

The evolution of the structure of Sb8Ge32Se60 (Z 2.72) and Sb20Ge20Se60 (Z 2.60) chalcogenide glasses is determined by high resolution X-ray photoelectron spectroscopy. Glasses with Z 2.60 the structure consists of deformed tetrahedra and pyramids, in which at least one Se atom is substituted by Ge or Sb atom. For the Z 2.72 structure consisting of shared pyramids and tetrahedra with two or more Se atoms substituted by the cations. At the same time, Se-Se dimers are present in both compositions.

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