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Optical Properties of Amorphous Semiconductors

Abstract

The sharp structure observed in the fundamental optical spectra of crystals, both vibrational and electronic, can be classified and interpreted by symmetry arguments based explicitly on the existence of long-range order. Indeed, this is one of the few properties of crystals which cannot be accounted for on the basis of short-range order alone: If the long-range order is destroyed, the sharp structural detail, which is typical for crystals, disappears. However, the broad features of the spectra are similar if the short-range order is similar.

Keywords

Absorption Edge Chalcogenide Glass Amorphous Semiconductor Internal Electric Field Urbach Tail 
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

© Plenum Publishing Company Ltd 1974

Authors and Affiliations

  • J. Tauc
    • 1
  1. 1.Division of Engineering and Department of PhysicsBrown UniversityProvidenceUSA

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