Cerium-, terbium- and europium-activated CaScAlSiO6 as a full-color emitting phosphor

We reported a single-phased CaScAlSiO 6 :Ce 3+ , Tb 3+ , Eu 3+ as a potential full-color emitting phosphor for the application in fluorescent lamps. The CaScAlSiO 6 :Ce 3+ , Tb 3+ , Eu 3+ phosphor exhibits three bands under 254 nm excitation: one band situated at 380 nm is attributed to the 5d → 4f transitions of Ce 3+ ions, the second band with sharp lines peaked at 542 nm is assigned to the 5 D 4 → 7 F J transitions of Tb 3+ ions, the third band in the orange–red region (580–700 nm) is originated from 5 D 0 → 7 F J transitions of Eu 3+ ions. The Commission Internationale de I’Eclairage (CIE) chromaticity coordinates (0.30, 0.30) and high color rendering index (CRI=88) can be achieved upon excitation of 254 nm light. It is suggested that CaScAlSiO 6 :Ce 3+ , Tb 3+ , Eu 3+ can serve as a potential single-phased full-color emitting phosphor for phosphor-converted fluorescent lamps.