Characteristics of Micro-Size Light-Emitting Diode With Pentagon-Type Structure
- 13 August 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 33 (19), 1077-1080
- https://doi.org/10.1109/lpt.2021.3104645
Abstract
We systemically investigated the effect of chip structures on the optical characteristics of micro-size LEDs. The total internal reflection (TIR) can be improved by selecting a suitable chip structure, thereby increasing the light efficiency. The saturation light output power (LOP) of the micro-size LED using pentagon-type structure is 44.78 mW, an increase of 6.08% compared with that of micro-size LED using circular-type structure. Simulation and experimental results indicate that chip structure of pentagon-type can effectively enhance the light extraction from the top or side of the micro-size LED.Keywords
Funding Information
- Science and Technologies plan Projects of Guangdong Province (2020B010171001, 2017B010112003)
- Guangzhou Provincial Science and Technology Plan Project (201905010001, 201604046021)
- Science and Technology Development Plan Projects of Zhongshan City (2019AG014, 2019AG042, 2020AG023)
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