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JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 49, Issue 4, Pages -Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.49.040206
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We report on the first demonstration of a semipolar AlGaN based deep ultraviolet (UV) light emitting diode (LED), with a peak emission wavelength of 307 nm. The LED structure was grown on an m-plane sapphire substrate using metal organic chemical vapor deposition (MOCVD). A combination of pulsed MOCVD (PMOCVD) grown AlN and a short period AlN/AlGaN superlattice structure was found to be instrumental in achieving singular semipolar structural phase of (11 (2) over bar2) with a defect density low enough to fabricate the light emitting device. The on-wafer optical output power of the fabricated LED was similar to 20 mu W at a dc pump current of 20 mA. (C) 2010 The Japan Society of Applied Physics
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