Er3+ doped Ba2GdV3O11: Synthesis and characterization for crystal and photoluminescent features of bright green emitting nanophosphor

Advanced temperature sensing with Er3+/Yb3+ co-doped Ba2GdV3O11 phosphors through upconversion luminescence

“…67 The Rietveld refinement procedure, performed using the FullProf_Suite program, shows that the synthesized phosphors crystallized into a monoclinic crystal structure with P21/c space group symmetry (14). 70 The unit cell parameters are calculated to be a = 12.374692 Å, b = 7.731662 Å, c = 11.178051 Å, β = 103.56582°, and V = 1029.88 Å 3 .…”

“…Notably, Ba 2 GdV 3 O 11 has been extensively investigated for its doping versatility with several lanthanide ions, including Er 3+ and Yb 3+ . [66][67][68][69][70] In particular, Er 3+ and Yb 3+ ions are strategically employed as the activator and sensitizer, respectively, in UC materials due to their abundant ladder-like energy levels and robust absorption cross-section in the near-infrared (NIR) range. This codoped system presents a promising avenue for precise and efficient thermometry applications, leveraging the unique properties of Er 3+ and Yb 3+ ions in the Ba 2 GdV 3 O 11 host matrix.…”