| 高出光率GaN基光子晶体LED的研究进展 |
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| 引用本文： | 王凡,牛萍娟,于莉媛.高出光率GaN基光子晶体LED的研究进展[J].半导体技术,2009,34(5). |
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| 作者姓名： | 王凡 牛萍娟 于莉媛 |
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| 作者单位： | 天津工业大学,信息与通信工程学院,天津,300160;天津工业大学,信息与通信工程学院,天津,300160;天津工业大学,信息与通信工程学院,天津,300160 |
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| 基金项目： | 天津市高等学校科技发展基金计划项目 |
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| 摘 要： | 在LED上制作光子晶体结构将会提高LED的出光效率,这使得LED应用范围更广.主要从不同的光子晶体加工工艺出发,总结近年来GaN基光子晶体LED的研究进展,介绍新的工艺和实验结果.通过比较发现,利用光子晶体的光子禁带效应和光栅衍射原理,都能够提高LED的出光效率,但需要和光子晶体的结构参数以及相应的加工工艺相结合,使出光效率和光场能流密度有大幅度的提高,从而实现LED出光效率的提高,使LED取代白炽灯等光源应用于生活照明成为可能.
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| 关 键 词： | 氮化镓 光子晶体 发光二极管 光栅衍射 出光效率 |
Development of GaN-Based Photonic Crystal LED of High Extraction Efficiency |
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| Wang Fan,Niu Pingjuan,Yu Liyuan.Development of GaN-Based Photonic Crystal LED of High Extraction Efficiency[J].Semiconductor Technology,2009,34(5). |
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| Authors: | Wang Fan Niu Pingjuan Yu Liyuan |
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| Affiliation: | School of Information and Communication Eng.;Tianjin Polytechnic University;Tianjin 300160;China |
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| Abstract: | Combined with the photonic crystal,the extraction efficiency of LED can be greatly enhanced,and the application of LED is wider.Based on the different process of photonic crystal,the recent progress of photonic crystal GaN LED is summarized,and the new processes and the experimental results are introduced.By comparing,the extraction efficiency of LED would be enhanced by the effects of photonic band gap and grating diffraction,combined with the structural parameters and corresponding process,and the extract... |
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| Keywords: | GaN photonic crystal light-emitting diode rating diffraction extraction efficiency |
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