Perovskite LEDs a thousand times brighter than OLEDs
https://phys.org/news/2024-01-perovskite-thousand-brighter-oleds.html
"imec enhanced amplified spontaneous emission with optical pumping electrical assist high-power thin-film laser diodes... demonstrating electrical injection contributing 13% to stimulated emission... excellent optoelectrical properties, low-cost processability, efficient charge transport... low optical losses enable pumped PeLEDs to current densities supporting stimulated emission of light... transport layers, transparent electrodes and perovskite semiconductor enable electrical current densities tens of 1,000X higher"
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