Latest performance of GaN-based nonpolar/semipolar emitting devices

摘要

High Efficient GaN-based blue &green nonpolar/semipolar LEDs and laser diodes were developed with an advantage of much smaller piezoelectric field, and non-isotropic strain to change the energy band structures. (20-2-1) semipolar LEDs were fabricated. The spectrum width of those LEDs is much narrower than that of conventional c-pain and other semipolar/nonpolar LEDs. The blue-shift of the peak emission wavelength of (20-2-1) LEDs is almost negligible in comparison with that of the conventional c-plain and other semipolar/nonpolar LEDs. (20-2-1), (20-21) and nonpolar blue&green laser diodes were fabricated.