Grating amplitude effect on electroluminescence enhancement of corrugated organic light-emitting devices
Grating amplitude effect on electroluminescence enhancement of corrugated organic light-emitting devices
复制标题
光栅振幅对波纹有机发光器件电致发光增强的影响
DOI：
10.1364/ol.36.003915
复制
发表时间：
2011-10-01
期刊：
影响因子：
3.6
通讯作者：
Sun, Hong-Bo
中科院分区：
文献类型：
--
作者：
Zhang, Xu-Lin;Feng, Jing;Sun, Hong-Bo
本文报道了一维波纹结构有机电致发光器件的场致发光与光栅振幅的关系。我们提出的器件可以从顶部银和底部石英侧发射光，并且都表现出幅度依赖性EL增强。通过实验和数值模拟研究了光栅振幅对EL强度的影响，找出了最佳的光栅振幅，使EL增强最大。从数值模拟和实验结果可以看出，表面等离子体激元模式和波导模式在最佳振幅下有效地耦合出波纹器件，从而实现更高的光提取效率。(C)2011年美国光学学会
We report grating amplitude dependence of electroluminescence (EL) in organic light-emitting devices with one-dimensional corrugated structure. Our proposed devices can emit light from both the top silver and bottom quartz side, and both exhibit amplitude-dependence EL enhancement. The effect of grating amplitude on the EL intensity has been studied experimentally and numerically to find out the optimal grating amplitude for the greatest EL enhancement. We deduce from the numerical simulations and experimental results that surface plasmon-polariton modes and waveguide modes are coupled out of the corrugated devices efficiently at the optimal amplitude; therefore, higher efficiency of light extraction could be realized. (C) 2011 Optical Society of America