p+* cap (500 A) p-GaN (1000 Al p-A)GaN (300 A) InGaN/GaN MOW
n-GaN (2000 A)-—(I
tunoeł junction — p-GaN (1000 A) -p-AIGaN (300 A) -InGaN/GaN MQW
Ti/AI/Ti/Au
sapphire