Interstitial Formation, Non-Equilibrium and Macroscopic Processes in Mercury Cadmium Telluride

Abstract

Several issues of major importance for the crystal quality of mercury cadmium telluride and related materials (cadmium telluride and cadmium zinc telluride) have been investigated during the course of this contract. These issues are: the effects of defect interactions, including complex formation and possible changes in defect diffusion, the role of interstitial defects, and the magnitude and effects of lattice relaxation around defects. A new technique (the 'local' matrix' method) was developed to obtain estimates of point defect total energies, electronic levels, and the character of the localized states for ionic and metallic tetrahedrally bonded materials, such as mercury cadmium telluride. Preliminary work on a more accurate tight-binding supercell method has given encouraging results. Keywords: Point defects, Interstitials, Diffusion, Semiconductors (materials), Mercury tellurides, Cadmium tellurides, Zinc tellurides.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 28, 1989
Accession Number
ADA212412

Entities

People

  • C. G. Morgan-pond

Organizations

  • Wayne State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Charge Carriers
  • Classification
  • Contracts
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Diffusion
  • Electrons
  • Energy Levels
  • Materials
  • Materials Science
  • Military Research
  • Point Defects
  • Security
  • Semiconductors
  • Wave Functions

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Quantum Chemistry
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics