Modeling of Wide-Band-Gap Semiconductor Alloys and Related Topics

Abstract

This year's work was concerned with the electronic structure of ZnO and related alloys. The nature of the valence band fine structure was studied and progress made in identifying the problems underlying its identification by experimental optical studies. Valence band effective mass parameters were determined. The electronic structure of Mg(x)Zn(1-x)O alloys were studied, their bandgap bowing determined and their band offsets to ZnO and other related materials were investigated. The stability of MgO in the wurtzite structure relative to the rocksalt structure was investigated. A continuous transformation from rocksalt to wurtzite was discovered and applied both to MgO and to GaN.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1999
Accession Number
ADA370335

Entities

People

  • Walter R. Lambrecht

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Gaps
  • Band Structures
  • Conduction Bands
  • Crystals
  • D Band
  • Electrons
  • Energy Bands
  • Excitons
  • Magnetic Fields
  • Materials
  • Quantum Properties
  • Semiconductors
  • Silicon Carbide
  • Spectra
  • Valence
  • Valence Bands
  • Wide Bandgap Semiconductors

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Semiconductor Device Technology
  • Systems Analysis and Design

Technology Areas

  • Microelectronics