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Abstract:
为提高发光二极管(LED)的光提取效率,分析了光栅形状(矩形、等腰梯形、等腰三角形)对提取效率的影响;基于等效介质理论和严格耦合波法,优化了集成不同形状光栅的LED.利用有限时域差分法,模拟计算了三种不同最优结构LED的光提取效率.研究结果表明,在0.4?0.5 μm波长范围内,等腰三角形光栅倒装LED的光提取效率均在70%以上,最高可达77.75%,而梯形光栅倒装LED的光提取效率最低,最高仅能达到58%.
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激光与光电子学进展
ISSN: 1006-4125
Year: 2018
Issue: 8
Volume: 55
Page: 432-436
Cited Count:
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 1
Chinese Cited Count:
30 Days PV: 1
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