Preparation and Characterization of Cu2ZnGeS4-ySey

Abstract

Cu2ZnGeS4 can be prepared in both tetragonal stannite and orthorhombic wurtz-stannite phases, whereas Cu2ZnGeSe4 only exists in the tetragonal phase. Selenium can be substituted for sulfur up to 100% in the tetragonal structure of Cu2ZnGeS(4-y)Se(y) prepared at 700 C, and up to 75% in the orthorhombic structure prepared ad 900 C. The temperature at which the phase transformation takes place was found to increase with higher selenium concentration. Iron was substituted into both forms of Cu2Zn(1-x)Fe(x)GeS(4-y) Se(y) and the same in both structures. Keywords: Germanium; Copper; Zinc; Iron; Selenium; Chalcogenides; Optical properties; Semiconducting properties; Non linear optics; Antiferromagnetic interactions.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1990
Accession Number
ADA217571

Entities

People

  • Aaron Wold
  • K. Doverspike
  • Kirby Dwight

Organizations

  • Brown University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Chemistry
  • Elements
  • High Temperature
  • Low Temperature
  • Magnetic Moments
  • Magnetic Properties
  • Materials
  • Phase
  • Phase Transformations
  • Procurement
  • Rhode Island
  • Security
  • Solid Solutions
  • Transition Temperature
  • Transitions
  • Universities
  • X Rays

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.