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Optical Properties of the Chalcogenide Glasses

  • P. C. Taylor
  • M. L. Theye
  • J. Orenstein
  • S. R. Elliott
  • B. Golding
  • D. L. Fox

Abstract

Glasses containing group VI elements, other than oxygen, are essentially covalent and exhibit thermally-activated electrical conductivities which are analogous to those observed in intrinsic crystalline semiconductors. In these so-called chalcogenide glasses the optical properties are dominated by strong electron-lattice interactions. Experimental examples of this coupling include a strongly Stokes-shifted photoluminescence (PL) peak and an optically-induced absorption which is nearly independent of energy and extends well below the band edge. Other absorption mechanisms common to all of the chalcogenide glasses include an Urbach tail to the band edge absorption and an optically-induced transient absorption which extends well into the gap. In addition, some of the more highly conducting chalcogenide glasses exhibit a free carrier absorption below the band edge which is thermally activated. Other PL processes observed in the chalcogenide glasses include several transient PL peaks which appear in all glasses studied to date.

Keywords

Chalcogenide Glass Small Polaron Amorphous Semiconductor Band Tail Bonding Configuration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • P. C. Taylor
    • 1
  • M. L. Theye
  • J. Orenstein
  • S. R. Elliott
    • 2
  • B. Golding
    • 3
  • D. L. Fox
    • 3
  1. 1.Department of PhysicsUniversity of UtahSalt Lake CityUSA
  2. 2.Dept. of Physical ChemistryUniversity of CambridgeCambridgeEngland
  3. 3.Bell LaboratoriesMurray HillUSA

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