Determination of luminances and structural characterizationsoccurred by the addition of some rare earth elements to calcium borated type compounds

In this thesis, it is aimed to synthesize CaB2O4 by adding some rare earth metal oxides, as a method, experiments were carried out in an open atmosphere environment at high temperature (700-1000 °C) with solid-state chemical reactions technique. Structural analyzes of the synthesized compounds were performed by powder X-Ray Diffraction (XRD), and detailed photoluminescence (PL) characteristic behaviors of the synthesized substances were also done experimentally. In the synthesis experiments, we observed four different calcium borate compounds, respectively, CaB2O4 (ICDD 22-140), CaB2O4 (ICDD 27-67), Ca(BO2)2 (ICDD 73-79) and Ca(B3O4)(OH)3(H2O) (ICDD 82-1825).As a result of PL analyzes of the doped some rare earth metal oxides (Re2O3 ; Re3+: Nd+3, Ce+3, Gd+3 and Eu+3) to calcium borate compounds, it was observed that PL analyses were compatible with the literature data.