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近年来,GaN基光子晶体发光二极管(light emitting diode,LED)的研究已经取得了一定的进展,利用光子晶体的光子带隙效应和光栅衍射原理,在LED上制作光子晶体结构将会提高出光效率.本文为了提高AlGaInP系LED的光提取效率,分析了常规LED光提取效率受到限制的原因,将光子晶体结构引入了AlGaInP系LED的器件结构设计,通过理论分析与实验验证,结果显示:光子晶体结构对于提高AlGaInP系LED的光提取效率同样起到了明显的效果,引入光子晶体后,LED的输出光强比常规结构LED平均
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关键词:
- AlGaInP系LED /
- 光子晶体 /
- 光提取效率 /
- 光强
Some progress in the research of GaN based LED with photonic crystal structure has been made recently. Based on the photonic crystals photonic band gap effect and photon grating diffraction principle,the extraction efficiency of LED with photonic crystal can be improved. In this paper,the restriction on AlGaInP LEDs extraction efficiency is analyzed,and the photonic crystal is introduced in to the AlGaInP LED to improve the extraction efficiency. The theoretical analyses and the experiment results show that the output luminous intensity of LED with photonic crystal is improved by 16%,which results from some effect of the GaN based LED with photonic crystal.-
Keywords:
- AlGaInP LED /
- photonic crystal /
- light extraction efficiency /
- luminous intensity
[1] Yen C H,Liu Y J,Huang N Y,Yu K H,Chen T P,Chen L Y,Tsai T H,Lee C Y,Liu W C 2008 IEEE Photonics Technology Letters 1923
[2] Kim D H,Cho C O,Roh Y G,Heonsu Jeon,Yoon Soo Park,Jaehee Cho,Jin Seo Im,Cheolsoo Sone,Yongjo Park,Won Jun Choi,Park Q H 2005 Appl. Phys. Lett. 87 203508.1-3
[3] Ryu H Y,Hwang J K,Lee Y J,Lee Y H 2002 IEEE J. Quantum Electron 8 231
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[5] Fan S,Villeneuve P R,Joannopoulos J D 2000 IEEE J. Quantum Electron 36 1123
[6] Lin H,Liu S,Zhang X S,Liu B L,Ren X C 2009 Acta Phys. Sin. 58 959 (in Chinese) [林 瀚、刘 守、张向苏、刘宝林、任雪畅 2009 58 959]
[7] Sajeev J 1987 Phys. Rev. Lett. 58 2486
[8] Bifeng Rong,Huub W M,Salemink,Roeling E M,Rob van der Heijden,Fouad Karouta,Emile van der Drift 2007 J. Vac. Sci. Technol. B 25 2632
[9] Hyun Kyong Cho,Junho Jang,Jeong-Hyeon Choi,Jaewan Choi,Jongwook Kim,Jeong Soo Lee,Beomseok Lee,Sun-Kyung Kim 2006 Optics Express 14 8654
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[1] Yen C H,Liu Y J,Huang N Y,Yu K H,Chen T P,Chen L Y,Tsai T H,Lee C Y,Liu W C 2008 IEEE Photonics Technology Letters 1923
[2] Kim D H,Cho C O,Roh Y G,Heonsu Jeon,Yoon Soo Park,Jaehee Cho,Jin Seo Im,Cheolsoo Sone,Yongjo Park,Won Jun Choi,Park Q H 2005 Appl. Phys. Lett. 87 203508.1-3
[3] Ryu H Y,Hwang J K,Lee Y J,Lee Y H 2002 IEEE J. Quantum Electron 8 231
[4] Luo S J 2009 Science Union forum 7 84 (in Chinese) [罗世俊 2009 科协论坛 7 84]
[5] Fan S,Villeneuve P R,Joannopoulos J D 2000 IEEE J. Quantum Electron 36 1123
[6] Lin H,Liu S,Zhang X S,Liu B L,Ren X C 2009 Acta Phys. Sin. 58 959 (in Chinese) [林 瀚、刘 守、张向苏、刘宝林、任雪畅 2009 58 959]
[7] Sajeev J 1987 Phys. Rev. Lett. 58 2486
[8] Bifeng Rong,Huub W M,Salemink,Roeling E M,Rob van der Heijden,Fouad Karouta,Emile van der Drift 2007 J. Vac. Sci. Technol. B 25 2632
[9] Hyun Kyong Cho,Junho Jang,Jeong-Hyeon Choi,Jaewan Choi,Jongwook Kim,Jeong Soo Lee,Beomseok Lee,Sun-Kyung Kim 2006 Optics Express 14 8654
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