Microcavity light emitting diodes based on GaN membranes grown by molecular beam epitaxy on silicon

Resonant-cavity InGaN/GaN quantum well light emitting diodes have been fabricated. Nitride layers were grown by molecular beam epitaxy on Si (111). We fabricated the structures using a combination of Si substrate etching, GaN etching and dielectric (Ta2O5/SiO2) mirror deposition. The electroluminescence spectra show that the emission within the distributed Bragg reflector stop band is enhanced in the membrane microcavity. The cavity modes are broadened by some cavity length non-uniformity that is introduced when the GaN is back etched to adjust the cavity length. This process does not need any transfer on an intermediate host substrate and is fully compatible with large area semiconductor processing.


Published in:
Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes & Review Papers, 42, 1, 118-121
Year:
2003
ISSN:
0021-4922
Keywords:
Laboratories:




 Record created 2010-10-05, last modified 2018-03-17


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