Nano/micro -powders of Nd3+-doped YPO4 and LuPO4 under structural and spectroscopic studies. An abnormal temporal behavior of f-f photoluminescence

J. Pawłów (1) , K.A. Prokop (1) , M. Guzik (1) , Y. Guyot (2) , G. Boulon (2) , J. Cybińska (1)

1 UWr - University of Wrocław [Poland]
2 iLM - LUMINESCENCE - iLM - Luminescence

We report a detailed analysis of both structural characterization and high-resolution spectroscopic properties of Nd3+-doped YPO4 and LuPO4 in the form of nano/micro -powders. LuPO4, like YPO4 crystalizes in a zircon-type tetragonal system. Nd3+ ion in substitution of Lu3+ or Y3+ cations occupies the main symmetry site D-2d and the presence of additional components in the spectra may indicate the presence of Nd3+ clusters, first Nd3+ pairs. For both types of compounds (with Lu3+ and Y3+ ion in the host lattice) the F-4(3/2) excited level decay times recorded at 77 K have shown an abnormal temporal behavior of Nd3+ photoluminescence. This phenomenon is observed both for nano and micro-powdered samples.

Domaines: Chimie; Physique [physics]; Sciences de l'ingénieur [physics]

J. Pawłów, K.A. Prokop, M. Guzik, Y. Guyot, G. Boulon, et al.. Nano/micro -powders of Nd3+-doped YPO4 and LuPO4 under structural and spectroscopic studies. An abnormal temporal behavior of f-f photoluminescence. Journal of Luminescence, 2021, 236, pp.117997. ⟨10.1016/j.jlumin.2021.117997⟩. ⟨hal-03278061⟩