Structure and luminescence properties of silver-doped NaY(PO3)4 crystal
EL MASLOUMI, Mohamed
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie du Solide Minéral
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Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie du Solide Minéral
EL MASLOUMI, Mohamed
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie du Solide Minéral
< Réduire
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie du Solide Minéral
Langue
en
Article de revue
Ce document a été publié dans
Journal of Solid State Chemistry. 2008, vol. 181, n° 11, p. 3078-3085
Elsevier
Résumé en anglais
Single crystals of NaY(PO3)4 and Ag0.07Na0.93Y(PO3)4 have been synthesized by flux method. These new compounds turned out to be isostructural to NaLn(PO3)4, with Ln=La, Nd, Gd and Er [monoclinic, P21/n, a=7.1615(2) Å, ...Lire la suite >
Single crystals of NaY(PO3)4 and Ag0.07Na0.93Y(PO3)4 have been synthesized by flux method. These new compounds turned out to be isostructural to NaLn(PO3)4, with Ln=La, Nd, Gd and Er [monoclinic, P21/n, a=7.1615(2) Å, b=13.0077(1) Å, c=9.7032 (3) Å, β=90.55 (1)°, V=903.86(14) Å3 and Z=4]. The structure is based upon long polyphosphate chains running along the shortest unit-cell direction and made up of PO4 tetrahedra sharing two corners, linked to yttrium and sodium polyhedra. Infrared and Raman spectra at room temperature confirms this atomic arrangement. The luminescence of silver ions was reported in metaphosphate of composition Ag0.07Na0.93Y(PO3)4. One luminescent centre was detected and assigned to single Ag+ ions.< Réduire
Mots clés en anglais
Phosphate
Crystal
Luminescence
Silver
Origine
Importé de halUnités de recherche