Abstract
Abstract
We report a 330 ppi monolithic RGB micro light-emitting diodes (μLED) array of blue, green and red GaInN-based LEDs stacked on the same wafer. Considering it is challenging to form ohmic electrodes on the plasma-etched p-type GaN surface, GaInN-based tunnel junctions were used to connect each LED, and anode electrodes for the blue and green LEDs were formed on n-type AlGaN. The fabricated stacked monolithic μLED arrays were tested at room temperature (approximately 26 °C) and DC. Each μLED emitted blue, green and red with peak wavelengths of 486, 514 and 604 nm at a current density of 50 A cm−2.
Funder
JSPS KAKENHI
JST A-STEP Project
New Energy and Industrial Technology Development Organization
King Abdullah University of Science and Technology (KAUST) Research Funding
Subject
General Physics and Astronomy,General Engineering
Cited by
3 articles.
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