Structural Properties of Amorphous Semiconductors by Mossbauer Spectroscopy

Abstract

The amorphous to crystalline transition in vacuum deposited tellurium films has been observed using Mossbauer spectroscopy. Although the work is still preliminary, a large difference between the amorphous and crystalline forms of tellurium has been observed in the recoil free fraction as well as a smaller, but measurable, difference between the magnitudes of the quadrupole interactions. The samples studied contain 50% enriched tellurium-125 and are about 2 microns thick. Attempts to form thicker films have met with difficulties which may be overcome in further experiments. Thicker or higher enrichment films will result in better quality spectra which will be easier to analyze and interpret.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1973
Accession Number
AD0763408

Entities

People

  • Norman Blum

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Spectra
  • Asymmetry
  • Calibration
  • Covalent Bonds
  • Films
  • Materials
  • Measurement
  • Mossbauer Effect
  • Phase
  • Physics
  • Physics Laboratories
  • Scattering
  • Semiconductors
  • Spectra
  • Spectroscopy
  • Structural Properties
  • Transitions

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Materials Science and Engineering.
  • Solar Physics

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene