Enhanced Light Output of Vertical GaN-Based Light-Emitting Diodes with a Distributed Bragg Reflector and a Roughened GaO<sub>x</sub> Surface Film

[D-3-2] Enhanced Light Output of Vertical GaN-Based Light-Emitting Diodes with a Distributed Bragg Reflector and a Roughened GaO_x Surface Film

W. C. Lee¹、K. M. Uang²、T. M. Chen²、D. M. Kuo¹、P. R. Wang¹、P. H. Wang¹、S. J. Wang¹ (1.National Cheng Kung Univ.、2.Wufeng Inst. of Tech. , Taiwan)