Effect of Synthesis Methods on Conductivity and Luminescence Properties for La3+ and Ho 3+ Co-Doped Ceo2

This study was to investigate materials synthesized by both sol-gel and hydrothermal methods in terms of their effects on luminescence and electrical properties. Following the synthesis, an XRD, Raman spectroscopy analysis, photoluminescence spectroscopy measurements, BET equation. FE-SEM, EDX. The ionic conductivity of the pelletized powder ceramic undoped CeO2 and La3+ and Ho3+ doped CeO2 electrolyte was measured by impedance spectroscopy. The high-conductivity hydrothermal method was found as 5.64×10-3 Ω.cm-1 at 750 °C, with the best conductivity result. The peaks in the excitations spectrum at approximately 438 nm (5I8 → 5G6) correspond to the transition of the Ho3+ ion