EL MASLOUMI, Mohamed; JUBERA, Veronique; PECHEV, Stanislav; CHAMINADE, Jean-Pierre; VIDEAU, Jean-Jacques; MESNAOUI, Mohamed; MAAZAZ, Mohamed; MOINE, Bernard

doi:10.1016/j.jssc.2008.07.040

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EL MASLOUMI, Mohamed
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie du Solide Minéral

JUBERA, Veronique
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

PECHEV, Stanislav
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Journal of Solid State Chemistry. 2008, vol. 181, n° 11, p. 3078-3085

Elsevier

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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.< Leer menos

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Phosphate

Crystal

Luminescence

Silver

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Structure and luminescence properties of silver-doped NaY(PO3)4 crystal

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