Photoluminescent and Thermoluminescent Studies of Dy3+ and Eu3+ Doped Y2O3 Phosphors.
作者： Tarkeshwari Verma , Sadhana Agrawal
DOI: 10.1007/S10895-018-2208-5
关键词: Fourier transform infrared spectroscopy 、 Thermoluminescence 、 Spectroscopy 、 Phosphor 、 Yttrium 、 Doping 、 Analytical chemistry 、 Photoluminescence 、 Chemistry 、 Infrared spectroscopy
摘要: Eu3+ doped and Dy3+ codoped yttrium oxide (Y2O3) phosphors have been prepared using solid-state reaction technique (SSR). The were characterized by X-ray diffractometer (XRD), energy dispersive (EDX) spectroscopy, scanning electron microscopy (SEM) Fourier transforms infrared spectroscopy (FTIR) techniques. Photoluminescence (PL) Thermoluminescence (TL) properties studied in detail. PL emission spectra recorded for under excitation wavelength 254 nm, which show a high intense peak at 613 nm Y2O3:Dy3+, (1:1.5 mol %) phosphor. correlated color temperature (CCT) CIE analysis performed the synthesized phosphors. TL glow curves Eu3+doped Dy3+codoped to study heating rate effect dose response. kinetic parameters calculated shape method UV γ exposures through computerized curve deconvolution (CGCD) technique. second order kinetics activation energies varying from 5.823 × 10− 1 18.608 × 10− 1 eV.
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