Graphene transparent electrode for enhanced optical power and thermal stability in GaN light-emitting diodes
作者： Doo-Hyeb Youn , Young-Jun Yu , HongKyw Choi , Suck-Hwan Kim , Sung-Yool Choi
DOI: 10.1088/0957-4484/24/7/075202
关键词:
摘要: We report an improvement of the optical power and thermal stability GaN LEDs using a chemically doped graphene transparent conducting layer (TCL) low-resistance contact structure. In order to obtain low resistance between TCL p-GaN surface, patterned with Cr/Au electrodes is suggested. A bi-layer patterning method was utilized prevent from peeling off surface. To improve work function sheet graphene, CVD (chemical vapor deposition) by chemical treatment HNO3 solution. The effect on degradation at high injection current level investigated. addition, enhancement via increase in spreading decrease potential barrier
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