Review on Perovskite Light Emitting Diodes in Nature Electronics
This review written and coordinated by Azhar Fakharuddin (University of Konstanz) with contributions by leading scientists from the field describes the developments and key challenges of perovskite LEDs.
Light-emitting diodes based on halide perovskites have undergone rapid development in recent years and can now offer external quantum efficiencies of over 23%. However, the practical application of such devices is still limited by a number of factors, including the poor efficiency of blue-emitting devices, difficulty in accessing emission wavelengths above 800 nm, a decrease in external quantum efficiency at high current density, a lack of understanding of the effect of the electric field on mobile ions present in the perovskite materials, and short device lifetimes. This review describes the development of perovskite light-emitting diodes. It examines the key challenges involved in creating efficient and stable devices, and considers methods to alleviate the poor efficiency of blue-emitting devices, leverage emission in the long infrared region and create spin-polarized light-emitting diodes. We contributed a section on mobile ions in perovskite LEDs.
Fakharuddin, A., Gangishetty, M.K., Abdi-Jalebi, M. et al. Perovskite light-emitting diodes. Nat Electron (2022). https://doi.org/10.1038/s41928-022-00745-7