Corrugated organic light-emitting diodes to effectively extract internal modes
Corrugated organic light-emitting diodes to effectively extract internal modes
复制标题
波纹有机发光二极管有效提取内模
DOI：
10.1364/oe.27.00a372
复制
发表时间：
2019-04-15
期刊：
影响因子：
3.8
通讯作者：
Wang, Jiahui
中科院分区：
文献类型：
--
作者：
Liang, Haowen;Hsu, Hao-Chun;Wang, Jiahui
提出了一种有效提取有机电致发光器件（OLED）中表面等离子激元（SPP）和波导模的波纹结构。这种结构是通过闪耀光栅的纳米压印形成的。为了研究光栅间距的最佳提取条件，我们比较了三种间距的波纹OLED的光提取效率，显示了42.00%的外部量子效率（EQE）的增强比与这种内部结构。由于SPP和波导模式转换成衬底模式，EQE的增强比可以进一步推到103.02%，通过附加的宏透镜。模拟结果验证了实验结果，并显示了波纹结构对横向电磁波（TE）和横向磁场（TM）的提取机制。我们预见，这种方法能够以具有成本效益的方式提高大规模生产OLED照明和显示设备的光学效率。(c)根据OSA开放获取出版协议的条款，2019年美国光学学会
We report a corrugated structure to effectively extract the surface plasmon polaritons (SPP) and waveguiding modes in organic light-emitting diodes (OLEDs). This structure is formed by nano-imprint of blazed gratings. To study the optimum extraction condition in terms of grating pitches, we compare the light extraction efficiency of corrugated OLEDs with three kinds of pitches, showing a 42.00% external quantum efficiency (EQE) enhancement ratio with this internal structure. Due to the transfer of SPP and waveguiding modes into substrate mode, the EQE enhancement ratio can be further pushed to 103.02% by attaching a macrolens. The simulation verifies the experimental results and shows the extraction mechanism of the corrugated structure towards transverse electric (TE) and transverse magnetic (TM) waves. We foresee that this method is able to enhance the optical efficiency of devices for both mass-production OLED lighting and display in a cost-effective way. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement