Red-Emitting LiLa[sub 2]O[sub 2]BO[sub 3]:Sm[sup 3+],Eu[sup 3+] Phosphor for Near-Ultraviolet Light-Emitting Diodes-Based Solid-State Lighting

A red-emitting phosphor has been synthesized and characterized optically for white light-emitting diodes (LEDs). Because the oxyborate group can contain high concentration without concentration quenching, is a suitable host material for red-emitting phosphor for near-ultraviolet (n-UV) LEDs. When was co-doped with , emission intensity of was enhanced by than that of the sample without owing to the energy transfer from to . This energy transfer was confirmed by faster decay times of as energy donors. showed a relative brightness of 334.7% of that of , commercial red-emitting phosphor for n-UV LEDs.