Recycling of guided mode light emission in planar microcavity light emitting diodes
- 17 February 1997
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 70 (7) , 799-801
- https://doi.org/10.1063/1.118226
Abstract
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.Keywords
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