Optical properties of RE (RE = Eu3+, Dy3+, Sm3+, Ce3+)-doped BaSr2(PO4)2 phosphor

This article reported the photoluminescence properties of a rare-earth (RE; Eu3+, Dy3+, Sm3+, Ce3+)-doped BaSr2(PO4)2 phosphor. A series of rare-earth (RE; Eu3+, Dy3+, Sm3+, Ce3+)-doped BaSr2(PO4)2 has been synthesized by a wet chemical method. The SEM images indicated that the rare-earth-doped phosphate-based phosphor was well crystallized, with a homogeneous particle size distribution. Rare-earth (RE; Eu3+, Dy3+, Sm3+, Ce3+)-doped BaSr2(PO4)2 phosphor shows the characteristics optical spectra that measured under near UV and visible range. Here, PL emission spectra for Eu3+ is located at 590 and 613 nm; Dy3+ band centred at 480 and 574 nm, while Sm3+ located at 563, 601 and 642 nm, respectively, and Ce3+ also showed at 329 nm and 343 nm. All these bands were assigned due to tod-f and f-f transitions of RE ions. So, based on the properties of these reported phosphors, they may be a promising host for display applications.