“…There have been reports indicating that phosphors with a low-dimensional arrangement of the dopant ions show little concentration quenching 38 . In such phosphors, the stoichiometric phosphors (100% dopant ion) are also contained 39,40 . The dopant ion site of these phosphors has higher asymmetry, owing to low-dimensional arrangement.…”
“…There have been reports indicating that phosphors with a low-dimensional arrangement of the dopant ions show little concentration quenching 38 . In such phosphors, the stoichiometric phosphors (100% dopant ion) are also contained 39,40 . The dopant ion site of these phosphors has higher asymmetry, owing to low-dimensional arrangement.…”
“…11,12 The alkali double tungstate ALnW 2 O 8 has scheelite related structures with various crystal symmetries and lattice parameters. 10,11 In this study the crystal structure of the dou- …”
“…Cell parameters, c/a, and volumes of all compounds are Another composition, which has the formula Ln 2 BMO 8 listed in Table 1 2Ϫ group, show three absorption bands in this that they do not show obvious concentration quenching.…”
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