title: 5d-4f transition in new phosphate-based phosphors.
abstract: The preparation of Ce(3+)-doped Sr(6) AlP(5) O(20) and Ba(6) AlP(5) O(20) by a combustion method is described. Formation of compounds was confirmed by X-ray diffraction (XRD) analysis. The photoluminescence (PL) emission spectra were observed at 355 nm when excited at 307 nm for the various concentrations. The PL emission spectra of phosphors showed strong Ce(3+) emission due to the 5 d → 4f transition of Ce(3+) ions. The Ce(3+) emission intensity in Sr(6) AlP(5)O(20):Ce phosphor was higher than that in Ba(6) AlP(5)O(20):Ce and it may be useful for scintillation applications.
authors.affiliation: Department of Physics, N. S. Science and Arts College, Bhadrawati District, Chandrapur, 442902, India. kartik_shinde@rediffmail.com
authors.forename: K N
authors.initials: KN
authors.lastname: Shinde
authors.forename: S J
authors.initials: SJ
authors.lastname: Dhoble
mesh_terms: D002563:Cerium / Q000737:chemistry*; D004583:Electrons; D049408:Luminescent Agents / Q000737:chemistry*; D010710:Phosphates / Q000737:chemistry*; D012588:Scintillation Counting; D013057:Spectrum Analysis
chemical_list: D049408:Luminescent Agents; D010710:Phosphates; D002563:Cerium