首页 > 论文 > 激光与光电子学进展 > 55卷 > 8期(pp:82302--1)

光栅形状对发光二极管光提取效率的影响

Influence of Grating Shape on LED Light Extraction Efficiency

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

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%。

Abstract

In order to enhance the light-emitting diode (LED) light extraction efficiency, the influences of grating shapes (rectangle, isosceles trapezoid and isosceles triangle) on the extraction efficiency are analyzed. The LED integrated with different shaped gratings is optimized based on the equivalent medium theory and the rigorous coupled-wave analysis method. The light extraction efficiencies for three LEDs with different optimal structures are simulated by the finite difference time domain method. The research results show that, when the wavelength is within the range of 0.4-0.5 μm, the light extraction efficiency of a flip-chip LED with an isosceles triangle shaped grating is larger than 70%, and the maximum is up to 77.75%, while that of a flip-chip LED with a trapezoid shaped grating is the lowest and its maximum is only 58%.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TN383

DOI:10.3788/lop55.082302

所属栏目:光学器件

基金项目:国家自然科学基金(61650404)、浙江省教育厅科研项目(Y201738091)、衢州市科技计划项目(2014Y017,2015Y018,2017G16)、新苗人才计划校级项目(QZY17X013)

收稿日期:2018-02-05

修改稿日期:2018-03-05

网络出版日期:2018-03-16

作者单位    点击查看

方晓敏:衢州职业技术学院信息工程学院, 浙江 衢州 324000
江孝伟:衢州职业技术学院信息工程学院, 浙江 衢州 324000北京工业大学电子信息与控制工程学院光电子技术实验室, 北京 100124
赵建伟:衢州职业技术学院信息工程学院, 浙江 衢州 324000

联系人作者:江孝伟(JosephJiangquzhi@126.com); 方晓敏(zhjfangxiaomin@163.com);

【1】Jeon K S, Yuh H K, Choi Y H, et al. Comparison of the optimum number of quantum wells in GaN-based blue light-emitting diodes grown on sapphire and Si(111) substrates[J]. Journal of Nanoscience and Nanotechnology, 2017, 17(6): 4235-4238.

【2】Seok M S, Yoo S J, Choe J H, et al. Light extraction efficiency enhancement using surface-structured light-emitting diodes with a subwavelength coating[J]. Journal of the Korean Physical Society, 2016, 68(3): 462-466.

【3】Lu L F , Ye Z C. Extraction efficiency and polarization induced by photonic crystal structure on GaN-based blue LED[J]. Acta Photonica Sinica, 2016, 45(11): 1113001.
陆李峰, 叶志成. GaN基蓝光LED中光子晶体对提取效率及发光偏振态的影响[J]. 光子学报, 2016, 45(11): 1113001.

【4】Chen E G, Zhou X Y, Guo T L. LED intelligent lighting system based on multi-channel real-time dynamic feedback[J]. Laser & Optoelectronics Progress, 2017, 54(1): 012301.
陈恩果, 周心禺, 郭太良. 基于多通道实时动态反馈的LED智能照明系统[J]. 激光与光电子学进展, 2017, 54(1): 012301.

【5】Xiong Y, Tan J, Fang S W, et al. A LED-based fiber-optic sensor integrated with lab-on-valve manifold for colorimetric determination of free chlorine in water[J]. Talanta, 2017, 167: 103-110.

【6】Zhang S, Zhang Y H, Yang T T, et al. Research on LED filament spot welding robot based on machine vision[C]. IEEE International Conference on Information and Automation, 2017: 1510-1514.

【7】Hong Y, Lee B, Byun J, et al. Key enabling technology for stretchable LED display and electronic system[J]. Sid Symposium Digest of Technical Papers, 2017, 48(1): 253-256.

【8】Matioli E, Rangle E, Iza M, et al. High extraction efficiency light-emitting diodes based on embedded air-gap photonic-crystals[J]. Applied Physics Letters, 2010, 96(3): 031108.

【9】Yeh W L, Fang C M, Chiou Y P. Enhancing LED light extraction by optimizing cavity and waveguide modes in grating structures[J]. Journal of Display Technology, 2013, 9(5): 359-364.

【10】Huang H W, Kao C C, Chu J T, et al. Improvement of InGaN-GaN light-emitting diode performance with a nano-roughened p-GaN surface[J]. IEEE Photonics Technology Letters, 2005, 17(5): 983-985.

【11】Song Y M, Park G C, Jang S J, et al. Multifunctional light escaping architecture inspired by compound eye surface structures: From understanding to experimental demonstration[J]. Optics Express, 2011, 19(S2): A157.

【12】Wierer J J, Steigerwald D A, Krames M R, et al. High-power AlGaInN flip-chip light-emitting diodes[J]. Applied Physics Letters, 2001, 78(22): 3379-3381.

【13】Li W, Yue Q Y, Kong F M, et al. Influence of surface ZnO nano-structures on the light emitting efficiency of GaN-based LED[J]. Acta Photonica Sinica, 2013, 42(4): 409-416.
李伟, 岳庆炀, 孔繁敏, 等. 顶端ZnO纳米结构对GaN基LED光提取效率的影响[J]. 光子学报, 2013, 42(4): 409-416.

【14】Liu S R, Wang L, Sun Y J, et al. Enhancement of light extraction efficiency for LED by bionic moth-eye structure with frustum of a cone[J]. Acta Optica Sinica, 2018, 38(1): 0122001.
刘顺瑞, 王丽, 孙艳军, 等. 利用截头圆锥形仿生蛾眼结构提高LED光提取效率[J]. 光学学报, 2018, 38(1): 0122001.

【15】Liu S R, Wang L, Zhang M L, et al. Study of light extraction efficiency for LED with square aperture nano-hemisphere array[J]. Chinese Journal of Luminescence, 2017, 38(12): 1668-1674.
刘顺瑞, 王丽, 张明磊, 等. 正方形孔径纳米半球阵列提高 LED 光提取效率研究[J]. 发光学报, 2017, 38(12): 1668-1674.

【16】Liu H. Study on enhancing the light extraction efficiency of GaN-based light emitting diodes by photonic crystal and one-dimensional grating structure[D]. Wuhan: Huazhong University of Science and Technology, 2014.
刘会. 利用光子晶体与一维光栅结构提高GaN基LED光取出效率的研究[D]. 武汉: 华中科技大学, 2014.

【17】Yin Z M. Improving light extraction efficiency of GaN-based LEDs by oxide micro&nano structures[D]. Jinan: Shandong University, 2014.
尹正茂. 氧化物微纳米结构提高GaN基LED光提取效率的研究[D]. 济南: 山东大学, 2014.

【18】Liu Y. Study of diffraction characteristics of triangular surface-relief subwavelength grating[D]. Chengdu: Sichuan University, 2004.
刘洋. 三角形面形亚波长光栅的衍射特性研究[D]. 成都: 四川大学, 2014.

【19】Jiang X W, Guan B L, Liu X, et al. The influence of sub-wavelength grating on wavelength tuning range in VCSEL[C]. IEEE International Conference on Optoelectronics and Microelectronics, 2016: 43-46.

引用该论文

Fang Xiaomin,Jiang Xiaowei,Zhao Jianwei. Influence of Grating Shape on LED Light Extraction Efficiency[J]. Laser & Optoelectronics Progress, 2018, 55(8): 082302

方晓敏,江孝伟,赵建伟. 光栅形状对发光二极管光提取效率的影响[J]. 激光与光电子学进展, 2018, 55(8): 082302

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF