周期纳米结构增强OLED光提取效率的研究

2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2006-01-01 DOI:10.1109/NEMS.2006.334879

Rong-jin Yan, Qing-kang Wang

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引用次数: 6

摘要

为了提高有机发光二极管(OLED)的光提取效率，我们在ITO层和玻璃基板的界面上引入了一种具有锥形单元胞的新型光子晶体板(PCS)结构。通过对几何参数的优化，我们证明了具有锥形单元三角形晶格的PCS结构比传统的PCS结构更有效地降低了OLED中的导波捕获能量。基于该PCS的OLED光提取效率提高了95.26%。进一步讨论了这些结构提高光萃取效率的物理机理。

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Enhancement of Light Extraction Efficiency in OLED with Periodic Nano-Structure

To improve the light-extraction-efficiency of organic light emitting diode (OLED), we introduced novel photonic crystal slab (PCS) structures with Taper unit cells into the interface of ITO layer and glass substrate. By optimizing the geometric parameters, we proved that the PCS with triangular lattice of Taper cells was more effective in reducing the energy of guided wave trapped in OLED than the traditional PCS structures. Light-extraction-efficiency of OLED based on this PCS increased by 95.26%. Physical mechanisms of light- extraction-efficiency enhancement in these structures are further discussed.

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2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems

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