Enhanced output of GaN-based light-emitting diodes with stripe-contact electrodes

被引:2
作者
Zhu, Yanxu [1 ]
Xu, Chen [1 ]
Liang, Ting [1 ]
Da, Xiaoli [1 ]
Zhang, Jianming [1 ]
Chen, Libing [1 ]
Shen, Guangdi [1 ]
机构
[1] Beijing Univ Technol, Inst Elect Engn & Informat, Beijing Optoelect Technol Lab, Beijing 100022, Peoples R China
关键词
D O I
10.1063/1.2338786
中图分类号
O59 [应用物理学];
学科分类号
摘要
High brightness GaN-based light-emitting diodes(LEDs) with stripe-contact electrodes have been developed. The p-type Ohmic contact layer is composed of oxidized Ni/Au stripes and NiO stripes. A Ag (3000 A) omnidirectional reflector covers the p-type contact. The n-type contact is a Ti/Al planar film with a Ti/Al stripe. All Ni/Au, NiO, and Ti/Al stripes surround the center of the LED mesa. At 20 mA current operation, the light output power of GaN-based LEDs with the stripe-contact electrodes is 16.26%-35.37% higher than that of the conventional LEDs.
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页数:3
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