Micro-LEDs at low current densities to improve efficiency based on the considerations of carrier matching

Guang-Zhi Tang; Wei-An Lin; Shen-Fu Tseng; Zhi-Ting Ye

doi:10.1117/12.2644050

20 December 2022 Micro-LEDs at low current densities to improve efficiency based on the considerations of carrier matching

Guang-Zhi Tang, Wei-An Lin, Shen-Fu Tseng, Zhi-Ting Ye

Author Affiliations +

Proceedings Volume 12314, Optoelectronic Devices and Integration XI; 123140D (2022) https://doi.org/10.1117/12.2644050
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

In this study, a blue Micro-LED chip structure with 1-5 pairs of quantum wells was proposed, and the current-voltage (I-V) curve, electroluminescence (EL) intensity and internal quantum efficiency (IQE) were analyzed for samples with a chip size of 3.5um, respectively. The simulation results show that the IQE value is the highest when the number of pairs of quantum wells is one pair, and the IQE can reach 18% when the current density is 2A/cm².

Conference Presentation

Citation Download Citation

Guang-Zhi Tang, Wei-An Lin, Shen-Fu Tseng, and Zhi-Ting Ye "Micro-LEDs at low current densities to improve efficiency based on the considerations of carrier matching", Proc. SPIE 12314, Optoelectronic Devices and Integration XI, 123140D (20 December 2022); https://doi.org/10.1117/12.2644050

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