Experimental Investigation into the Effect of Long Term Thermal Anneals on the Thermoelectric Properties of Silicon Germanium-Gallium Phosphide

Abstract

In this report is embodied the result of an experimental investigation into the effect of thermal anneals on the thermoelectric properties of n-type silicon germanium-gallium phosphide material. The construction of apparatus for measuring the electrical conductivity, Seebeck coefficient and thermal diffusivity is described and their performance assessed. A variety of techniques are employed in an attempt to identify the mechanisms/agencies responsible for the reported enhanced thermoelectric properties of these materials after they have been subjected to high temperature thermal anneals. The results confirm that improvements in the electrical power factor of silicon germanium-gallium phosphide accompanies high temperature thermal annealing.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1991
Accession Number
ADA240806

Entities

People

  • D. M. Rowe

Organizations

  • University of Wales

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Blood Coagulation Factors
  • Charge Carriers
  • Conductivity
  • Electrical Conductivity
  • Electrical Properties
  • Electron Scattering
  • Figure Of Merit
  • Germanium
  • Heat Treatment
  • High Temperature
  • Jet Propulsion
  • Materials
  • Measurement
  • Scattering
  • Thermal Conductivity
  • Thermal Diffusivity
  • Transport Properties

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Solar Photovoltaics and Thermoelectric Devices.
  • Systems Analysis and Design

Technology Areas

  • Microelectronics