INVESTIGATION OF CARRIER INJECTION ELECTROLUMINESCENCE

Abstract

The use of a new, fast-responding control system in combination with a new setup for the vertical Bridgman method with RF heating under high pressure, effected a marked improvement in the quality of ZnSe crystals. The microscopic observations in single electroluminescent particles were continued. Preparation and properties of the new embedding media with matched indices of refraction are described in detail. Interpretation of the findings permits the elimination of a number of current hypotheses on the mechanism of electroluminescence. The results are in qualitative agreement with a model based on transient alternatspace-charge-limited injection of holes and electrons from imperfection lines which are decorated with precipated conducting CuS, into insulating, compensated ZnS. The injected holes are stored in deep activator centers for half a cycle and recombine with electrons in the next half cycle. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1961
Accession Number
AD0270128

Entities

Organizations

  • Sarnoff Corporation

Tags

DTIC Thesaurus Topics

  • Agreements
  • Control Systems
  • Electroluminescence
  • Electrons
  • Elimination
  • Embedding
  • High Pressure
  • Hypotheses
  • Observation
  • Particles
  • Refraction

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Microelectronics