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STRUCTURAL-CHEMICAL APPROACH FOR COMPOSITIONAL DEPENDENCES OF gggg-INDUCED OPTICAL EFFECTS IN CHALCOGENIDE GLASSES OF Ge----Sb----S SYSTEM

T. S. Kavetskyy1,2, O. I. Shpotyuk3,2,* , A. P. Kovalskiy4, V. M. Tsmots1

Affiliation

  1. Solid-State Microelectronics Laboratory, Drohobych State Pedagogical University, 24, Franko str., Drohobych, 82100, Ukraine
  2. Institute of Materials, Scientific Research Company “Carat”, 202, Stryjska str., Lviv, 79031, Ukraine
  3. Institute of Physics, Jan Dlugosz University of Czestochowa, 13/15, al. Armii Krajowej, Czestochowa, 42201, Poland
  4. Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, PA 18015, USA

Abstract

Compositional dependences of g-induced optical effects in ternary chalcogenide glasses of Ge-Sb-S system within Sb2S3-GeS2 and Sb2S3-Ge2S3 cross-sections have been studied in terms of the average coordination number Z. The structural-chemical approach based upon the criterion of structural modification efficiency, covalent bond redistribution and free volume concept has been used for their interpretation. It is found that the most suitable explanation for compositional dependences of g-induced optical effects can be made in the framework of combination of covalent bond redistribution and free volume content. The microstructural features of the effects observed have been also analysed..

Keywords

Chalcogenide glasses, Radiation, Optical properties, Ge-Sb-S system.

Submitted at: Sept. 1, 2005
Accepted at: Sept. 22, 2005

Citation

T. S. Kavetskyy, O. I. Shpotyuk, A. P. Kovalskiy, V. M. Tsmots, STRUCTURAL-CHEMICAL APPROACH FOR COMPOSITIONAL DEPENDENCES OF gggg-INDUCED OPTICAL EFFECTS IN CHALCOGENIDE GLASSES OF Ge----Sb----S SYSTEM, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 5, pp. 2299-2308 (2005)