Research teams develops large-area perovskite light-emitting diodes for next-generation display technology

A research team at Seoul National University developed highly efficient large-area perovskite light-emitting diodes (PeLEDs) with an external quantum efficiency (EQE) of 22.5% and pixel size of 102 mm2.

Metal halide perovskites have very narrow spectral emission, excellent color purity, low material cost, and wide and easy color-tunability. Based on these advantages, perovskites are considered as a promising high color purity light emitter which can replace the conventional organic and inorganic quantum dot (QD) light emitters in displays and solid-state lighting technologies.

Especially, perovskite is the ever-reported only one emitter which can meet the standard of REC.2020. Therefore, perovskite is expected to contribute to the future ultra-high-definition television (UHD-TV) technology.

The research results were published in Nature Nanotechnology, which is the world-renowned international academic journal, on May 4th.