摘要
有机发光二极管(OLED)的发光效率很大程度上受到器件中高折射率材料(ITO/有机物)对导波光能量的制约。通过使用时域有限差分(FDTD)法,对在OLED中的氧化铟与氧化锡复合透明阳极ITO结构上覆盖3种基本结构的三角排列SINX六棱柱柱状光子晶体平板(PCS)的OLED结构进行了数值模拟,并对提高束缚于高折射率材料中的光提取效率效果进行了分析,给出了优化的几何参数及最合理的基本结构,为高性能OLED结构的设计提供设计依据。
The extraction efficiency of organic light-emitting diodes(OLED) is restrained by the high fraction of energy of the guided wave in the high-index materials(ITO/organic). By using finite difference time domain(FDTD) method,we simulated three basic structures of triangle symmetry photonic crystal slab(PCS) with hexagon lattice on the ITO structure in OLED, and analyzed the improvement of these structures in the light extraction efficiency of the OLED,and provided the optimized geometric parameters and the best basic structure, which will provide the theoretical support for designing the high performance OLED.
出处
《光电子.激光》
EI
CAS
CSCD
北大核心
2006年第2期165-170,共6页
Journal of Optoelectronics·Laser
基金
上海市科委科技专项资助项目(0452NM056)