TY - JOUR T1 - Low dark current metal-semiconductor-metal photodiodes based on semi-insulating GaN A1 - Butun, S. A1 - Gokkavas, M. A1 - Yu, H. A1 - Ozbay, E. JA - Applied Physics Letters Y1 - 2006 VL - 89 SP - 073503-1 EP - 3 ER -