| 提高OLED光导出效率的异形金属光栅的设计与优化 |
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| 引用本文： | 罗跃川,张志友,石莎,杜惊雷.提高OLED光导出效率的异形金属光栅的设计与优化[J].发光学报,2010,31(6):784-790. |
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| 作者姓名： | 罗跃川 张志友 石莎 杜惊雷 |
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| 作者单位： | 四川大学 物理科学与技术学院 纳光子技术研究所, 四川 成都 610064 |
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| 基金项目： | 国家自然科学基金(61078047,60676024); 国家"973"项目(2006CB302902); 教育部博士点基金(20060610006)资助项目 |
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| 摘 要： | 提出一种用于有机电致发光器件(OLED)的双面对称矩形金属光栅电极,采用时域有限差分方法(FDTD)模拟研究了OLED中表面等离子体激元的激发和耦合传输的物理规律和物理机制,详细计算和分析了该光栅结构的周期、槽宽、光栅高度、槽底厚度、入射光的入射角与电极透射效率的关系,并由此优化了结构的几何参数,使金属电极的光导出效率相对于通常的金属银层电极增强了1.77倍,为基于表面等离子体激元的高效光导出器件的优化设计提供了理论依据。
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| 关 键 词： | 光导出效率 金属光栅 时域有限差分法(FDTD) 表面等离子激元(SPPs) |
| 收稿时间： | 2009-11-20 |
| 修稿时间： | 2010-01-24 |
Design and Optimizing of An Abnormal Metal Grating Used to Enhance The Light-output Efficiency of Organic Light-emitting Diode |
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| LUO Yue-chuan,ZHANG Zhi-you,SHI Sha,DU Jing-lei.Design and Optimizing of An Abnormal Metal Grating Used to Enhance The Light-output Efficiency of Organic Light-emitting Diode[J].Chinese Journal of Luminescence,2010,31(6):784-790. |
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| Authors: | LUO Yue-chuan ZHANG Zhi-you SHI Sha DU Jing-lei |
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| Institution: | Institute of Physics Science and Technology, Sichuan University, Chengdu 610065, China |
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| Abstract: | A kind of two-sided symmetrical rectangular metal gratings used in OLED structures as electrode is proposed. The exciting, coupling and transmiting of Surface plasmon polaritons are similated and analyzed with Finite-difference Time-domain(FDTD) method. Particularly the relation of light-output efficiency and periods, the groove width, the grating height, the thickness of the metal film, the angel of incident light are analyzed, respectively. By optimizing this gratings parameters,its transmissivity can be 1.77 times of traditional metal electrode.Providing technical and theoretic support to the desigh of high efficiency light out-coupling devices based on surface plasmon polaritons. |
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| Keywords: | light-output efficiency metal grating finite difference time domain(FDTD) surface plasmon polaritons(SPPs) |
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