Madkhali, O.Kaynar, Umit H.Kaynar, S. CamAyvacikli, M.Can, N.2024-03-092024-03-0920230025-54081873-4227https://doi.org/10.1016/j.materresbull.2023.112282https://hdl.handle.net/20.500.14034/1312The synthesis of GdAl3(BO3)4 phosphors incorporated with activators of Dy3+ and Dy3+/ Eu3+was successful and achieved through the gel combustion method. Powder X-ray diffraction (XRD) was employed to identify phase purity and the effects of dopant concentration on the crystallographic structure. The results of Photo-luminescence (PL) measurements revealed that the intensity and lifetime of luminescence properties varied depending on the concentrations of Dy3+ and Eu3+ ions. The dependence of luminescence intensity on doping concentration is investigated with respect to the energy transfer process between Eu3+ and Dy3+ ions. A decrease in luminescence lifetime occurs with increasing concentrations of Eu3+ co-doping. The energy transfer was also investigated using decay curve analysis. The co-doping of Eu3+ significantly boosts the energy transfer efficiency from 26% to 84%. These findings make GdAl3(BO3)4: Dy3+, Eu3+ phosphors an ideal choice for LED applications in solid state lighting and displays.eninfo:eu-repo/semantics/closedAccessGdal3(Bo3)4; Rare Earths; Xrd; Eds; Photoluminescence; Decay Curve; Energy TransferArticle10.1016/j.materresbull.2023.112282164N/AWOS:0009800078000012-s2.0-85152107796Q1