Abstract
X-ray powder diffraction and luminescence spectral-kineticstudies have been performed for ytterbium metaphosphate(YbP3O9) in the 12–290 K temperature range. The diffraction investigation has shownYbP3O9 to be ofmonoclinic P 21/c structure at T = 12–290 K. Charge transfer luminescence originating fromYb3+ ion has been revealed. The carrier confinement within theYb3+ charge transfer stateis pronounced at T = 12 K. A tendency has been revealed for charge carriers inYbP3O9 to be localized in a trapped exciton state at room temperature. The quenching mechanisms forYb3+ charge transfer luminescence and processes competing with the formation of theYb3+ charge transfer state are discussed.
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