Spectroscopic in-depths of upconverting NaZr(PO) phosphors for LIR-based thermometry.

This study employed solid-state synthesis to develop the green emitting Er-Yb:NaZr(PO), NASICON material. Using Rietveld refinement, the crystallographic variables of the synthesized phosphors were precisely calculated. The upconverting phenomenon was seen with naked eye when exposed to 980 nm laser radiation.

Intense blue upconversion emission and intrinsic optical bistability in Tm/Yb/Zn tridoped YVO phosphors.

Tm/Yb/Zn:yttrium metavanadate (YVO) phosphors prepared through chemical coprecipitation and the solid state reaction method have been structurally characterized by an x-ray diffraction (XRD) study. Photoluminescence study of the developed phosphors under ultraviolet (UV) and near infrared (NIR) excitation has been performed. The excitation spectrum of the tetragonal zircon type YVO phosphors corresponding to the emission at ∼476 nm exhibits a broad excitation peak in the 250-350 nm region, which is due to charge distribution in the [Formula: see text] group.