title: Structural and Near-Infrared Properties of Nd3+Activated Lu3NbO7Phosphor.
abstract: Undoped and Nd3+doped lutetium niobate phases have been prepared by a conventional solid state reaction method using lutetium acetate and niobium oxide at 1250 °C for 6 h. X-ray diffraction patterns of the 6 mol% Lu3NbO7sample exhibited a cubic fluorite single phase. Phase structure exhibited interesting crystallization behaviour depending on increasing Nd3+concentration which led to a Lu3NbO7single phase formation during the heat treatment process. SEM investigations were also in agreement with the XRD results. Morphologies of Nd3+doped lutetium niobate powders exhibited oval like shapes and grain sizes varied between 0.3 and 5 μm. Near-infrared luminescence properties of Nd3+doped Lu3NbO7were also studied. 1.06 μm laser transition characteristics of Nd3+doped lutetium niobate have been observed. Concentration quenching phenomenon was not detected depending on increasing Nd3+doping concentrations at room temperature.
authors: Department of Metallurgical and Materials Engineering, Marmara University, Göztepe Kampüsü, Kadıköy, 34722, İstanbul, Turkey. mustafa.ilhan@marmara.edu.tr.
authors: Mustafa
authors: M
authors: İlhan
authors: Department of Chemistry, Marmara University, Göztepe Kampüsü, Kadıköy, 34722, İstanbul, Turkey.
authors: Mete Kaan
authors: MK
authors: Ekmekçi
authors: Department of Environmental Engineering, Marmara University, Göztepe Kampüsü, Kadıköy, 34722, İstanbul, Turkey.
authors: Rıza Gürcan
authors: RG
authors: Oraltay
authors: Department of Chemistry, Marmara University, Göztepe Kampüsü, Kadıköy, 34722, İstanbul, Turkey.
authors: Ali Sadi
authors: AS
authors: Başak
keywords: Ln3NbO7; Neodymium doping; Niobates; Phosphors; Solid state synthesis