Recycling of guided mode light emission in planar microcavity light emitting diodes

Results are presented on planar microcavity light emitting diodes with different device diameters. A record external quantum efficiency of 20% is achieved for a 1.5 mm light emitting diode. The strong dependence of the quantum efficiency on current density and device size are compared with theoretic...

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Bibliographic Details
Published in:Applied physics letters 1997-02, Vol.70 (7), p.799-801
Main Authors: De Neve, H., Blondelle, J., Van Daele, P., Demeester, P., Baets, R., Borghs, G.
Format: Article
Language:English
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Summary:Results are presented on planar microcavity light emitting diodes with different device diameters. A record external quantum efficiency of 20% is achieved for a 1.5 mm light emitting diode. The strong dependence of the quantum efficiency on current density and device size are compared with theoretical results. A good correspondence is obtained when spectral broadening and photon recycling are taken into account.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.118226