Open AccessStructural, magnetic and up-conversion properties of YF3: Yb/Ln (Ln = Er, Tm, Ho) solid solutions
Author(s) -
Jelena Aleksić,
Tanja Barudžija,
Miodrag Mitrić,
Marija Bošković,
Zoran Ristić,
Ljiljana T. Kostić
Publication year - 2020
Publication title -
facta universitatis. series: physics, chemistry and technology
Language(s) - English
Resource type - Journals
eISSN - 2406-0879
pISSN - 0354-4656
DOI - 10.2298/fupct2002119a
Subject(s) - orthorhombic crystal system , materials science , lanthanide , photoluminescence , paramagnetism , solid solution , analytical chemistry (journal) , magnetic moment , crystal structure , chemistry , crystallography , condensed matter physics , ion , optoelectronics , metallurgy , physics , organic chemistry , chromatography
In this paper, we investigated YF3: Yb/Er, YF3: Yb/Tm, and YF3: Yb/Ho solid solutions prepared by reaction of an appropriate amount of oxides with ammonium difluoride (NH4HF2) as a fluorinating agent. These samples were characterized by Xray diffraction (XRD), magnetic measurements, and up-conversion (UC) photoluminescence spectra. The results show that all samples are single-phase and crystallize in an orthorhombic crystal structure of the ?-YF3 structure type. Above 100 K, the measured molar magnetic susceptibility was fitted by the Curie-Weiss law and the average effective magnetic moments for the observed samples were obtained. All the samples showed pure paramagnetic behavior. When doped with lanthanide elements (Yb/Er, Yb/Tm, Yb/Ho), YF3 solid solutions can emit characteristic green, red, blue, and near IR light under the excitation of a 980 nm laser diode.