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光子晶体结构提升发光二极管出光效率的研究 被引量:1

A Study of Enhancing the Light-Emitting Efficiency of Light Emitting Diodes by Photonic Crystal Structure
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摘要 采用有限元(FEM)算法数值仿真和比较了不同纳米结构光子晶体发光二极管(Light-emitting Diode,LED)对光的提取效率的影响。仿真结果表明光子晶体结构对器件的出光效率有明显的提升,并给出了光子晶体LED器件的相关优化参数。根据优化参数成功制备了纳米孔状、柱状结构光子晶体LED器件。器件性能表征表明相对于表面未作结构化处理的LED,纳米柱状光子晶体LED和纳米孔状光子晶体LED的光效增强倍率分别为2.03倍和1.52倍。具有纳米结构的光子晶体LED器件比平面结构的LED器件性能有了较大的提升。
作者 李泽平 魏志文 李东京 沈静 伍爱霞 LI Ze-ping;WEI Zhi-wen;LI Dong-jing;SHEN Jing;WU Ai-xia
出处 《湖北科技学院学报》 2019年第4期85-89,93,共6页 Journal of Hubei University of Science and Technology
基金 湖北科技学院博士启动基金(L07903/170335-BK201819,BK201801) 湖北省高校优秀青年科技创新团队规划项目(T201513)
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