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Kinetics of the Destriau Effect

  • E. Yu. L’vova
Conference paper
Part of the The Lebedev Physics Institute Series book series (LPIS, volume 50)

Abstract

A description is given of a general method for investigating the kinetics of the Destriau effect. This method is based on the transport equations derived for a crystal phosphor with three systems of levels in the forbidden band: levels of luminescence centers, shallow electron traps, and deep donors. These equations make allowance for all the transitions between each of the systems of levels and both allowed bands, for band — band transitions, as well as for carrier drift in an electric field. The system of transport equations is applied to a two-step model of the Destriau effect. The system of transport equations is simplified considerably by considering the high-field region separately from the recombination region. The proposed theory is used to derive an expression for the electroluminescence efficiency. The results are given of an experimental study of the dependence of the electroluminescence efficiency on the voltage applied to capacitors containing ZnS:Cu phosphors with different concentrations of copper. These experimental results are compared with the theory.

Keywords

Transport Equation Schottky Barrier Luminescence Center Crystal Phosphor Shallow Trap 
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Copyright information

© Consultants Bureau, New York 1972

Authors and Affiliations

  • E. Yu. L’vova

There are no affiliations available

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