title: Photoluminescence properties of a novel red emitting Ba₁₀F₂(PO ₄)₆:Eu³⁺ phosphor.
abstract: A novel red-emitting phosphor Ba10F2(PO4)6:Eu(3+) is synthesized by a high-temperature solid-state reaction. X-ray powder diffraction (XRD) analysis confirms the phase formation of Ba10F2(PO4)6:Eu(3+) materials. The photoluminescence excitation (PLE) and emission (PL) spectra, the concentration dependence of the emission intensity, decay curves and Commission International de I'Eclairage (CIE) of the phosphors are investigated. It is observed that Ba10F2(PO4)6:Eu(3+) phosphors exhibit two dominating bands situated at 591 and 616 nm, originating from the (5)D0→(7)F1 and (5)D0→(7)F2 transition of the Eu(3+) ion, respectively. The decay time is also determined for various concentrations of Eu(3+) in Ba10F2(PO4)6:Eu(3+). Crystal lattice, PL spectra and decay time analysis indicate there exist two isolated Eu(3+) crystallography sites in Ba10F2(PO4)6. The calculated color coordinates lie in the red region. Therefore, Ba10F2(PO4)6:Eu(3+) phosphors may be good candidates for red components in near-UV (NUV) white LEDs.
authors.affiliation: Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China.
authors.forename: You-Shun
authors.initials: YS
authors.lastname: Peng
authors.affiliation: Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China.
authors.forename: Wei-Wei
authors.initials: WW
authors.lastname: Shi
authors.affiliation: Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China.
authors.forename: Cong-Lin
authors.initials: CL
authors.lastname: Han
authors.affiliation: Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China.
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Kang
authors.affiliation: Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China.
authors.forename: Yan-Su
authors.initials: YS
authors.lastname: Wang
authors.affiliation: Chemical Engineering College, Hebei Normal University of Science and Technology, Qinhuangdao, 066600, China. Electronic address: zhangzhiweia@163.com.
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Zhang
mesh_terms: D017609:Barium Compounds / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D008958:Models, Molecular; D010710:Phosphates / Q000737:chemistry*; D011789:Quantum Theory; D013997:Time Factors; D014961:X-Ray Diffraction
chemical_list: D017609:Barium Compounds; D049408:Luminescent Agents; D010710:Phosphates; D005063:Europium
keywords: Ba(10)F(2)(PO(4))(6):Eu(3+); Luminescence; Phosphors; Red-emitting phosphor