Preparation of Compounds with the Tetrahedral Structure Which Transmit in the Far Infrared

Abstract

A number of chalcogenides and phosphides crystallize with the tetrahedral structure in which the cations and anions are in tetrahedral positions. The II-VI compounds such as ZnS, ZnSe, Cds and CdSe are known to transmit in the far infrared. However, they are soft and decompose in air at relatively low temperatures. Efforts have been made at Brown University to improve the properties of these compounds, either by alloying them with III-V semiconductors, or by substituting transition metals such as nickel for the divalent specie.

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Document Details

Document Type
Technical Report
Publication Date
May 30, 1989
Accession Number
ADA208697

Entities

People

  • Aaron Wold
  • Kirby Dwight
  • P. W. Kershaw
  • Y. M. Gao

Organizations

  • Brown University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Chemistry
  • Compound Semiconductors
  • Crystal Growth
  • Crystals
  • Diffraction
  • Hardness
  • Long Wavelengths
  • Materials
  • Measurement
  • Mechanical Properties
  • Metals
  • Military Research
  • Optical Properties
  • Rhode Island
  • Single Crystals
  • Temperature Gradients
  • United States

Readers

  • Materials Science and Engineering.

Technology Areas

  • Microelectronics