Modeling Space Charge in Alternating -Current Thin-Film Electroluminescent Devices Using a Single-Sheet Charge Model,

Abstract

A simulation of alternating current thin film electroluminescent device operation with positive space charge present in the phosphor layer of the device is presented. The simulation is based on modeling the space charge distribution using a single sheet charge model. The simulation is performed for two cases of space charge creation: by impact ionization of deep levels in the phosphor or by field emission from traps in the phosphor. Results of the simulation show that spacecharge creation by either mechanism is capable of causing overshoot in both capacitance voltage and internal charge phosphor field (Q-Fp) Plots.

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Document Details

Document Type
Technical Report
Publication Date
Jun 20, 1995
Accession Number
ADA308784

Entities

People

  • J. F. Wager
  • P. D. Keir
  • W. M. Ang

Organizations

  • Oregon State University

Tags

DTIC Thesaurus Topics

  • Alternating Current
  • Capacitance
  • Electricity
  • Electron Emission
  • Emission
  • Field Emission
  • Films
  • Ionization
  • Phosphors
  • Simulations
  • Space Charge
  • Thin Films
  • Voltage

Readers

  • Electrical Engineering
  • Human-Computer Interaction (HCI).
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Space
  • Space - Hall-Effect Thruster