Proceedings of the International Display Workshops Volume 31 (IDW '24)

Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center
The International Display Workshops
Proceedings of the International Display Workshops Volume 31 (IDW '24)

Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

[PH1-3]High-Durability Sulfide Red-Emitting Phosphor

*Seika Tokumitsu1, Yutaka Anzai1, Tsuneo Kusunoki1, Satoshi Makio1(1. OXIDE Corporation (Japan))
https://doi.org/10.36463/idw.2024.0518

Keywords:

Blue light excitation,Red-emitting phosphor,Humidity resistance

To produce a high-durability red-emitting phosphor, Eu doped CaS (CaS:Eu) was crystalized. Single crystals with a <100> orientation were obtained without cracks or impurities. The internal quantum efficiency was improved using annealing treatment, exceeding that of CaS:Eu powder. The single crystals had higher moisture resistance than that of CaS:Eu powder.