Far infrared absorption spectra of amorphous (As2S3)−(Sb2S3) semiconductors and the spatial charge fluctuation

  • K. Matsuishi
  • T. Anzaki
  • S. Onari
  • T. Arai
Article
  • 28 Downloads

Abstract

Far infrared absorption spectra of amorphous (As2S3)1−x(Sb2S3)x system (x=0.0∼0.6) were measured in the wavenumber region 7∼25 cm−1 with Lamellar grating far infrared Fourier Transform Spectrometer, and the spatial fluctuation of charges and its correlation range were estimated with charge fluctuation model. The charge fluctuation of (As2S3)1−x(Sb2S3)x system increases with Sb2S3 concentration x. On the other hand, the correlation length of the charge fluctuation decreases from 7 A to 4.5 A with an increase in x. As a result, it can be found that the medium range order of As2S3 changes drastically with an incease in Sb2S3 concentration x.

Keywords

Fourier Fourier Transform As2S3 Correlation Length Infrared Absorption 

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Copyright information

© Plenum Publishing Corporation 1989

Authors and Affiliations

  • K. Matsuishi
    • 1
  • T. Anzaki
    • 1
  • S. Onari
    • 1
  • T. Arai
    • 1
  1. 1.Institute of Applied PhysicsUniversity of TsukubaTsukuba, IbarakiJapan

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