Ispitivanje strukturnih, magnetnih i luminescentnih svojstava materijala na bazi itrijum-trifluorida dopiranih jonima retkih zemalja

Abstract

Rare-earth based inorganic materials are very attractive in scientific research, as well as numerous industry applications, due to their specific properties that arise from the partially filled 4f orbitals. The aim of this thesis is the synthesis, characterization, and detailed investigation of the structural, magnetic, and luminescent properties of yttrium trifluoride materials doped with rare-earth ions. The scope of this research includes the synthesis of two sets of solid solutions, YbxY1-xF3 and YF3:Yb/Ln (Ln=Er, Tm, Ho), by the reaction of an appropriate amount of oxides with ammonium hydrogendifluoride. The various characteristic properties, such as the structural and magnetic properties, for different ytterbium concentrations within the first set of solid solutions are studied in detail. Within the second set of solid solutions, the main focus is placed on the investigations of their luminescent properties, as well as potential applications of YF3:Yb/Er samples in thermometry.