有机发光二极管
材料科学
光电子学
电致发光
亮度
平面的
光学
发光二极管
光散射
作者
Zhi-Yu Chen,Ru-Jian Zhang,Yu-Ping Wang,Da Yin,Yue-Feng Liu,Yan-Gang Bi,Jing Feng
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-07-05
卷期号:47 (15): 3744-3744
摘要
We propose a facile, scalable strategy to introduce spontaneously formed disordered wrinkles into organic light-emitting devices (OLEDs) to enhance light extraction and realize stretchability of the devices. The luminance and current efficiency of the wrinkled OLEDs are improved by 37% and 18%, respectively, compared to the planar device. Meanwhile, broadband light scattering induced by the disordered wrinkles results in angle-stable electroluminescent spectra at wide viewing angles for the wrinkled OLEDs. The disordered wrinkles enable the OLEDs to be stretchable and withstand hundreds of stretching-releasing cycles at strain between 0% and 5%. This study provides a simple method to realize stretchable OLEDs with high efficiency.
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