摘要
Graded-composition multiple quantum barriers (GQB) were designed and incorporated in c-plane InGaN/GaN light-emitting diodes (LEDs) grown on c-plane sapphire substrate to improve hole transport and efficiency droop. The simulation of GQB LED design predicts enhancement of the hole transport in the active region at both low and high current densities. The fabricated LED with GQB structure exhibits lower series resistance and substantially reduced droop behavior of only 6 in comparison with 34 for conventional LED, supporting the improvement of hole transport in our design.
原文 | English |
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文章編號 | 171106 |
頁(從 - 到) | 1-3 |
頁數 | 3 |
期刊 | Applied Physics Letters |
卷 | 99 |
發行號 | 17 |
DOIs | |
出版狀態 | Published - 24 10月 2011 |