Engineers use molecular additive to make new LED more efficient, but it is less stable

https://techxplore.com/news/2023-08-molecular-additive-efficient-stable.html

"semiconductor metal halide perovskite crystals grown on glass substrates, dissolve and paint onto glass so cheaper... sharpen color purity smartphone, TV displays... replace 30% perovskite's lead with manganese atoms made >2X brighter, almost 3X more efficient... not treated with phosphine TFPPO extended lifespan to 37 min... adding water to solution perovskite crystals form, PeLEDs emitted bright violet light 5X more efficiently... sterilize medical equipment, purify water, grow indoor crops"

Related: Chloride ions kill the stability of blue perovskite light-emitting diodes: Study
https://phys.org/news/2023-11-chloride-ions-stability-blue-perovskite.html