| Title |
Optical Characteristics Comparison Between a Three-striped LED and a Conventional GaN-based LED |
| Authors |
Keeyoung Kwon; Janggeun Ki |
| DOI |
https://doi.org/10.5573/IEIESPC.2019.8.4.317 |
| Keywords |
LED; Photon extraction efficiency; Mean photon path length; Striped LED |
| Abstract |
In this paper, we propose a new light-emitting diode structure with three stripes. We analyze the effect of the tapered structure of the proposed three-striped LED on photon extraction efficiency and on the mean photon path length, compared with a conventional LED structure. The effect of the absorption loss from p-metal and n-metal electrodes on photon extraction efficiency and the mean photon path length are also studied by comparing the three-striped LED with the conventional LED structure. In the three-striped LED, photon extraction efficiency is 40.7%, which is greater than the conventional gallium-nitride (GaN)-based LED, when Fresnel reflection at the semiconductor air interface is the only mechanism to prevent emitting of light. |