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• W1646405516 endingPage "415102" @default.
• W1646405516 startingPage "415102" @default.
• W1646405516 abstract "Abstract In this work, Eu-doped, Tb-doped and Eu, Tb-codoped Y 2 O 3 nanophosphors were synthesized by the combustion synthesis method. The prepared phosphors were characterized by x-ray diffraction (XRD), Rietveld refinement and Fourier transform infrared (FTIR) spectroscopy. XRD studies and Rietveld refinement confirmed the body-centred cubic structure of doped and codoped phosphors. FTIR studies also confirmed the formation of these compounds. Thermal analysis results indicated that there was no phase transition for all the phosphors in the studied temperature range. In the optical properties, diffuse reflectance (DR) and photoluminescence (PL) measurements were performed. DR spectra were used to determine the bandgap and it increased in the doped and codoped samples due to the crystallite size effect. A strong characteristic emission from Eu 3+ and Tb 3+ ions was identified and the influence of doping concentration and annealing temperature on PL properties was systematically studied. Transfer of energy was observed from Tb 3+ to Eu 3+ ions in the codoped phosphor at room temperature." @default.
• W1646405516 created "2016-06-24" @default.
• W1646405516 creator A5003013900 @default.
• W1646405516 creator A5030941765 @default.
• W1646405516 date "2012-09-28" @default.
• W1646405516 modified "2023-09-30" @default.
• W1646405516 title "Eu³⁺/Tb³⁺-codoped Y₂O₃ nanophosphors: Rietveld refinement, bandgap and photoluminescence optimization" @default.
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• W1646405516 doi "https://doi.org/10.1088/0022-3727/45/41/415102" @default.
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