High brightness green light emitting diodes with charge asymmetric resonance tunneling structure

被引:53
作者
Chen, CH [1 ]
Su, YK
Chang, SJ
Chi, GC
Sheu, JK
Chen, JF
Liu, CH
Liaw, YH
机构
[1] Natl Cheng Kung Univ, Inst Microelect, Tainan 70101, Taiwan
[2] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan
[3] Natl Cent Univ, Dept Phys, Chungli 320, Taiwan
[4] Nan Jeon Jr Coll Technol & Commerce, Dept Elect Engn, Yan Hsui 737, Taiwan
[5] Chin Min Coll, Dept Elect Engn, To Fen 351, Taiwan
关键词
GaN; green light emitting diode (LED); charge asymmetric resonance tunneling (CART); MQW;
D O I
10.1109/55.988814
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this work, we have applied the so called charge asymmetric resonance tunneling (CART) structure to nitride-based green light emitting diode (LED). From our CART LED, we observed an abrupt turn-on voltage near 2.2 V, and the forward voltage is around 3.2 V at 20 mA injection current. At 20 mA, the output power, and external quantum efficiency of the CART LED are about 4 mW, and 6.25%, respectively. The high brightness and efficiency green LED can be obtained by using the CART structure.
引用
收藏
页码:130 / 132
页数:3
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