Red MicroLEDs Three Orders of Magnitude Smaller in Surface Area


A technical paper titled “N-polar InGaN/GaN nanowires: overcoming the efficiency cliff of red-emitting micro-LEDs” was published by researchers at University of Michigan.

The researchers created “red-microLEDs that are nearly three orders of magnitude smaller in surface area than previously reported devices while exhibiting external quantum efficiency of ~1.2%,” according to the University of Michigan’s article. The research “provides a path to overcome the efficiency cliff of deep visible micro-LEDs, which are relevant for a broad range of applications including mobile displays and virtual/augmented reality devices and systems,” according to the paper.

Find the technical paper here. Published 2022.

A. Pandey, Y. Malhotra, P. Wang, K. Sun, X. Liu, and Z. Mi, “N-polar InGaN/GaN nanowires: overcoming the efficiency cliff of red-emitting micro-LEDs,” Photon. Res. 10, 1107-1116 (2022).

Related Reading
Yield Is Top Issue For MicroLEDs
Methods for boosting efficiency, testing thousands of pixels, and identifying known good emitters still in development.
MicroLEDs Move Toward Commercialization
But as tools and processes advance, there’s still room for breakthrough technologies.

Leave a Reply

(Note: This name will be displayed publicly)