Luminescence and energy transfer of white emitting phosphor Ba3Ce(PO4)3: Dy3+

A series of white emitting phosphors Ba3Ce(PO4)(3):Dy3+ were synthesized by a solidstate method, and the luminescent property and energy transfer were explored in detail. Ba3Ce(PO4)(3):Dy3+ shows three emission peaks, the blue emission band is associated to the 4f degrees 5d(1) -> 4f(1) transition of Ce3+ ions, and the two narrow peaks are assigned to the F-4(9/2) -> H-6(15/2) (490 nm) and F-4(9/2) -> 6H(13/2) (580 nm) transitions of Dy3+ ions, respectively. There are an efficient energy transfer from Ce3+ to Dy3+ ions in Ba3Ce(PO4)(3):Dy3+, which can be proved by the decay curves. Importantly, Ba3Ce(PO4)(3):Dy3+ can produce white emission with the CIE coordinates (0.3294, 0.3376). The results show that Ba3Ce(PO4)(3):Dy3+ may be a potential application in white light emitting diodes. (C) 2018 Elsevier GmbH. All rights reserved.