High efficiency planar microcavity LED's: comparison of design and experiment

This paper describes the design of substrate emitting microcavity LED's and a comparison of experimental results with modeling results. The modeling is based on a simulation tool which accounts for guided modes, quantum well reabsorption and photon recycling. The overall quantum efficiencies of...

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Bibliographic Details
Published in:IEEE photonics technology letters 1995-03, Vol.7 (3), p.287-289
Main Authors: De Neve, H., Blondelle, J., Baets, R., Demeester, P., Van Daele, P., Borghs, G.
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Information technology
Light emitting diodes
Microcavities
Mirrors
Optical devices
Optical pumping
Optoelectronic devices
Quantum mechanics
Radiative recombination
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Semiconductor lasers
Substrates
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Summary:This paper describes the design of substrate emitting microcavity LED's and a comparison of experimental results with modeling results. The modeling is based on a simulation tool which accounts for guided modes, quantum well reabsorption and photon recycling. The overall quantum efficiencies of /spl lambda//2 and /spl lambda/ cavities both with a 60% and a 90% reflecting DBR mirror are compared and a good qualitative correspondence is found between theory and experiment. The maximum theoretical overall quantum efficiency for the considered structures is expected to be around 14%, whereas the best experimental value amounts to 10.2%.< >
ISSN:1041-1135
1941-0174
DOI:10.1109/68.372748