Photoluminescence properties of Ca2Al2O5:RE3+ (RE = Eu, Dy and Tb) phosphors for solid state lighting
Citations Over Time
Abstract
Ca2 Al2 O5 :Eu3+ , Ca2 Al2 O5 :Dy3+ and Ca2 Al2 O5 :Tb3+ phosphors were synthesized using a combustion synthesis method. The prepared phosphors were characterized by X-ray powder diffraction for phase purity, by scanning electron microscopy for morphology, and by photoluminescence for emission and excitation measurements. The Ca2 Al2 O5 :Eu3+ phosphors could be efficiently excited at 396 nm and showed red emission at 594 nm and 616 nm due to 5 D0 → 7 F1 and 5 D0 → 7 F2 transitions. Dy3+ -doped phosphors showed blue emission at 482 nm and yellow emission at 573 nm. Ca2 Al2 O5 :Tb3+ phosphors showed emission at 545 nm when excited at 352 nm. Concentration quenching occurred in both Eu3+ and Dy3+ phosphors at 0.5 mol%. Photoluminescence results suggested that the aluminate-based phosphor could be a potential candidate for application in environmentally friendly based lighting technologies.
Related Papers
- → Efficient and Color‐Tunable Oxyfluoride Solid Solution Phosphors for Solid‐State White Lighting(2011)331 cited
- → Photoluminescence properties of Ca3B2O6:RE3+ (RE = Dy and Eu) phosphors for ecofrindly solid state lighting(2018)47 cited
- → Electronic structure and luminescence characteristics of rare earth free self-activated Ca2Sb2O7 blue emitting phosphor(2022)14 cited
- Nano phosphors for light emitting diodes (LEDs) Syntheses and Characterization(2012)
- → Synthesis and luminescence properties of Ca5(PO4)3Cl:Eu2+ phosphor for solid state lighting(2016)2 cited