title: Spectroscopic properties of Eu3+ doped RbLaP4O12 powders.
abstract: Monophasic RbLaP4O12 possessing monoclinic symmetry with varied Eu(3+) concentrations was synthesized by flux method. The obtained cyclotetraphosphate exhibits very small crystals and the dopant Eu(3+) ions were successfully incorporated into the sites of La(3+) ions of the host lattice. These compounds were characterized by infrared and Raman spectroscopy, X-ray diffraction (XRD) and luminescence spectroscopy. The spectroscopy properties confirm the potentiality of present RbLaP4O12 doped with Eu(3+) ions as luminophore host materials to produce an intense red luminescence at 616 nm corresponding to (5)D0→(7)F2 emission level and have significant importance in the development of emission optical systems.
authors.affiliation: Laboratoire de Chimie Inorganique, Université de Sfax, Faculté des Sciences de Sfax, Sfax, Tunisia. mesfar_mouna@yahoo.fr
authors.forename: M
authors.initials: M
authors.lastname: Mesfar
authors.forename: K
authors.initials: K
authors.lastname: Horchani-Naifer
authors.forename: M
authors.initials: M
authors.lastname: Abdelhedi
authors.forename: M
authors.initials: M
authors.lastname: Dammak
authors.forename: M
authors.initials: M
authors.lastname: Ferid
mesh_terms: D005063:Europium / Q000737:chemistry*; D007811:Lanthanum / Q000737:chemistry*; D049449:Luminescence; D008163:Luminescent Measurements; D011122:Polyphosphates / Q000737:chemistry*; D012413:Rubidium / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction
chemical_list: D011122:Polyphosphates; D005063:Europium; D007811:Lanthanum; C022074:sodium tetrametaphosphate; D012413:Rubidium
keywords: Cyclotetraphosphate; Infrared; Luminescence; Raman; X-ray diffraction