Effects of Fe2+ on Moisture Resistance of Fluoride Red Phosphors

摘要

Nowadays, K2SiF6:Mn4+ has been made extensive use of in technologies available, applied to LCD (Liquid crystal display) and pc-WLEDs (Phosphor-converted white light-emitting diodes). Nevertheless, there are still some significant problems needing solved, one of which is the poor moisture resistance. To expand its application in optical devices, this paper proposes a green and simple strategy on the basis of Fe2+, which effectively achieves a reduction of the reaction between water and luminescence center.