630-nm red InGaN micro-light-emitting diodes (<20 μm × 20 μm) exceeding 1 mW/mm2 for full-color micro-displays
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
KAUST Grant NumberBAS/1/1676-01-01
Online Publication Date2021-08-23
Print Publication Date2021-09-01
Embargo End Date2022-08-23
Permanent link to this recordhttp://hdl.handle.net/10754/670734
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AbstractWe demonstrated 10 × 10 arrays of InGaN 17 μm × 17 μm micro-light-emitting diodes (μLEDs) with a peak wavelength from 662 to 630 nm at 10–50 A∕cm2. The on-wafer external quantum efficiency reached 0.18% at 50 A∕cm2. The output power density of the red μLEDs was obtained as 1.76 mW∕mm2, which was estimated to be higher than that of 20 μm × 20 μm AlInGaP red μLEDs (∼630 nm). Finally, we demonstrate that InGaN red/green/blue μLEDs could exhibit a wide color gamut covering 81.3% and 79.1% of the Rec. 2020 color space in CIE 1931 and 1976 diagrams, respectively.
CitationZhuang, Z., Iida, D., Velazquez-Rizo, M., & Ohkawa, K. (2021). 630-nm red InGaN micro-light-emitting diodes (
SponsorsThe fabrication processes in this work were supported by Nanofabrication Core Labs in KAUST.
King Abdullah University of Science and Technology (BAS/1/1676-01-01).
PublisherThe Optical Society