Correlation between physical, optical and structural properties of sulfide glasses in the system Ge-Sb-S

    Authors

    L. Petit; N. Carlie; F. Adamietz; M. Couzi; V. Rodriguez;K. C. Richardson

    Comments

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    Abbreviated Journal Title

    Mater. Chem. Phys.

    Keywords

    germanium-based sulfide glass; IR and Raman spectroscopy; linear; refractive index; CHALCOGENIDE GLASSES; AMORPHOUS-SEMICONDUCTORS; SPECTRA; ABSORPTION; PHOSPHATE; REGION; Materials Science, Multidisciplinary

    Abstract

    Germanium-based sulfide glasses in the Ge-Sb-S system have been elaborated and studied. A relationship between the structure, the composition and the linear optical properties of the glass has been established. The effects of the introduction of Sb on the structure using IR and Raman spectroscopies and on the linear refractive index have been discussed. We have shown that the progressive introduction of Sb2S3 in the glass system (1 - x)GeS2-xSb(2)S(3) (with x = 0.10, 0.20, 0.40, 0.62 and 0.80) decreases the number of GeS4 units in the glass network. As results, the glass transition temperature, the Vicker's microhardness and the stability of the glass against crystallization decrease dramatically. An increase in the density and the linear refractive index as well as shift of the absorption bandgap to infrared have also been observed. Similar behavior has been observed for the glasses of composition Ge0.23SbyS0.77-y with an increase of y, except in the material's Vicker's microhardness, which increases with an increasing Sb content. This latter result indicates that the microhardness also depends on Sb2S3 content but seems to be more sensitive to GeS2 content variation. (c) 2005 Elsevier B.V. All rights reserved.

    Journal Title

    Materials Chemistry and Physics

    Volume

    97

    Issue/Number

    1

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    64

    Last Page

    70

    WOS Identifier

    WOS:000236458400011

    ISSN

    0254-0584

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