Structural, luminescence and thermometric properties of nanocrystalline YVO₄:Dy³⁺ temperature and concentration series.

ABSTRACT: We report systematic study of Dy³⁺-doped YVO₄ nanophosphors synthesized via modified Pechini technique. Effect of calcination temperature and doping concentration on structure and luminescence has been investigated. XRD and Raman spectroscopy revealed preparation of single phase nanoparticles without any impurities. Synthesized nanopowders consisted of weakly agglomerated nanoparticles with average size about 50 nm. Photoluminescence spectra of YVO₄:Dy³⁺ nanoparticles consisted of the characteristic narrow lines attributed to the intra-configurational 4f-4f transitions dominating by the hypersensitive ⁴F_9/2-⁶H_13/2 transition. The calcination temperature variation did not affect ⁴F_9/2

SUBMITTER: Kolesnikov IE 

PROVIDER: S-EPMC6376052 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature