“Highly Efficient Millimeter-Sized K(2)MnF(6):Si(4+), NH(4)(+) Crystals for Red-Luminescent Applications Outperform Other Mn4+ Activated Fluoride Phosphors”

https://pubmed.ncbi.nlm.nih.gov/38115192

Scientists have developed and grown millimeter-sized K(2)MnF(6):Si(4+), NH(4)(+) crystals with high absorption efficiency and external quantum efficiency for red-luminescent applications, outperforming many Mn4+ activated fluoride red phosphors.