Akademik Veri Yönetim Sistemi
Cukurova 11th International Scientific Researches Conference, Adana, Türkiye, 22 - 24 Ağustos 2023, ss.354, (Özet Bildiri)
Yttrium oxide (Y2O3) ceramics have been investigated in detail for many technological
purposes and used as important material in the ceramic industry, ceramic superconductors,
MOS transistors and light-emitting materials. Phosphor materials are important tools for the
efficient utilization of current energy. These materials can be used in various fields such as
display panels, fluorescent paints, and bio-imaging. In this study, Y2O3 phosphor particles with
different surface areas were produced using the sol-gel method. The aim of the study is to
investigate the effect of citric acid concentration used in the solution preparation stage on the
surface area of the final product. Luminescent materials can be more effectively used with
increasing surface area. For this purpose, starting solutions with three different acid
concentrations were prepared. The solutions were prepared to have citric acid concentrations
with respect to the total metal ions (MRCM) at 0.5, 1, and 2 molar concentrations. The organic
contents of the dried solutions were compared using Fourier transform infrared (FTIR)
spectroscopy, and the phase structures of the obtained samples after heat treatment were
analyzed using X-ray diffraction (XRD). The surface areas of the final Y2O3 particles were
measured and characterized using Brunauer-Emmett-Teller (BET) analysis. It is observed that
the acid concentration significantly changed the surface area of Y2O3. The surface areas of the
Y2O3 particles increased with increasing acid concentration. The surface areas of the samples
with MRCM values of 0.5, 1, and 2 were measured as 19.16 m2/g, 32.76 m2/g, and 53.48 m2/g,
respectively. The study showed that the surface area, which affects the luminescent properties
of phosphor materials, can be easily modified using the sol-gel method.