栅栏
光学
时域有限差分法
材料科学
极化(电化学)
闪耀光栅
垂直的
光电子学
衍射光栅
散射
发光二极管
物理
化学
几何学
数学
物理化学
作者
Yi Li,Mei Ge,Mei-Yu Wang,Xinglong Guo,Youhua Zhu
出处
期刊:Optics Express
[The Optical Society]
日期:2022-11-09
卷期号:30 (25): 44496-44496
被引量:2
摘要
The optical properties of deep-ultraviolet (DUV) light-emitting diode (LED) with Al nanograting structure are investigated by three-dimensional (3D) finite-difference time-domain (FDTD) simulation. The peak intensity of TE and TM polarization radiation recombination rate of the grating structure is increased by 33.3% and 22.0% as compared to the control structure with Al plane. The light extraction efficiency (LEE) of the emitted light whose propagation direction is in the plane perpendicular to the Al-grating ridge is much higher than that in the plane parallel to the Al-grating ridge due to the scattering of the grating. Without considering the lateral surface extraction and packaging, the total LEE of the grating structure can be improved by 41.4% as compared to the control structure. The peak intensity of the output spectrum of the DUV LED with the grating structure can be increased by 70.3%.
科研通智能强力驱动
Strongly Powered by AbleSci AI