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High-efficiency semiconductor resonant-cavity light-emitting diodes: a review

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5 Author(s)
Delbeke, D. ; IMEC, Ghent Univ., Gent, Belgium ; Bockstaele, R. ; Bienstman, P. ; Baets, R.
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An overview of highly efficient resonant-cavity light-emitting diodes is presented. First, the basics of dipole emission in planar cavities are reviewed. From these, a number of design rules are derived. We point out some guidelines for comparison of high-efficiency light-emitting diodes, and use these to review the state-of-the-art devices in different material systems and at different wavelengths. We also discuss some advanced techniques based on gratings or photonic crystals to improve the efficiency of these devices

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:8 ,  Issue: 2 )