Accession Number : ADA308784

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

Corporate Author : OREGON STATE UNIV CORVALLIS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING

Personal Author(s) : Keir, P. D. ; Ang, W. M. ; Wager, J. F.

PDF Url : ADA308784

Report Date : 20 JUN 1995

Pagination or Media Count : 15

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.

Descriptors :   *ELECTROLUMINESCENCE, *SPACE CHARGE, SPATIAL DISTRIBUTION, REPRINTS, LAYERS, VOLTAGE, FIELD EMISSION, SHEETS, IONIZATION, CAPACITANCE, ELECTRIC CHARGE, PHOSPHORS.

Subject Categories : Electricity and Magnetism
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Distribution Statement : APPROVED FOR PUBLIC RELEASE