High-Efficiency Linearly Polarized Organic Light-Emitting Diodes
Qi Dong, Liping Zhu, Shichen Yin, Lei Lei, Kenan Gundogdu, and Franky So
ACS Photonics 2023 10 (9), 3342-3349
DOI: 10.1021/acsphotonics.3c00812
Researchers have developed a highly efficient linearly polarized organic LED, capitalizing on the inherent polarization properties of the transverse electric waveguide mode within the device. Utilizing a linear grating, they achieved 67.6% light confinement in this mode, resulting in a polarized LED with a current efficiency of 136 cd/A and a polarization ratio exceeding 30. Further enhancements to current efficiency are possible, making this architecture adaptable for various thin-film LED applications in photonics.
How Setfos was used
The researchers used Setfos for optical simulations to analyze the spatial distribution of different modes in the top-emitting OLED device, determine the optimized device geometry, and simulate the dissipated power versus the effective refractive index in the optimized condition to enhance the efficiency of polarized emission.