TY - JOUR
T1 - Crystal Structure and Luminescence Properties of Silver in AgM(PO3)3 (M=Mg, Zn, Ba) Polyphosphates
AU - Belharouak, I.
AU - Aouad, H.
AU - Mesnaoui, M.
AU - Maazaz, M.
AU - Parent, C.
AU - Tanguy, B.
AU - Gravereau, P.
AU - Flem, G. Le
PY - 1999/6
Y1 - 1999/6
N2 - The relationships between the crystal structures and the luminescent properties of the AgM(PO3)3 (M=Mg, Zn, Ba) polyphosphates are reported in comparison with those of AgPO3. The structure of the magnesium and zinc phosphates is characterized by long polyphosphates chains connected to infinite chains of [AgO6] and [MO6] polyhedra sharing faces. The basic structural phosphate unit in AgBa(PO3)3 is a P3O9 ring. Silver atoms are located in distorted octahedral sites. Two types of luminescent centers have been observed. The UV emission observed in all these materials is typical of isolated Ag+ ions. The visible emission observed only in the zinc phosphate is probably the result of a silver-zinc association.
AB - The relationships between the crystal structures and the luminescent properties of the AgM(PO3)3 (M=Mg, Zn, Ba) polyphosphates are reported in comparison with those of AgPO3. The structure of the magnesium and zinc phosphates is characterized by long polyphosphates chains connected to infinite chains of [AgO6] and [MO6] polyhedra sharing faces. The basic structural phosphate unit in AgBa(PO3)3 is a P3O9 ring. Silver atoms are located in distorted octahedral sites. Two types of luminescent centers have been observed. The UV emission observed in all these materials is typical of isolated Ag+ ions. The visible emission observed only in the zinc phosphate is probably the result of a silver-zinc association.
KW - Crystallized polyphosphates; Rietveld; luminescence; silver; pairs.
UR - http://www.scopus.com/inward/record.url?scp=0003016851&partnerID=8YFLogxK
U2 - 10.1006/jssc.1999.8227
DO - 10.1006/jssc.1999.8227
M3 - Article
AN - SCOPUS:0003016851
SN - 0022-4596
VL - 145
SP - 97
EP - 103
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -