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It has been a challenge to realize high-quality X-ray imaging using oxide-based phosphors for avoiding halogenide-based materials and satisfying the requirements of environmental protection. In this study, lanthanide-doped nanocaged 12CaO·7Al2O3:Tb3+ (C12A7:Tb3+) X-ray imaging phosphors with strong photostimulated luminescence (PSL) have been prepared using a combustion method. X-ray diffraction (XRD),...
Lanthanide-doped oxide photo-stimulable (PS) phosphors (C12A7:Tb3+) with different encaged anions (O2−, H−, OH− and e−) have been prepared by a combustion method in combination with treatment under different conditions. Electron spin resonance (ESR) and Fourier transform IR (FTIR) transmittance data confirm the existences of encaged electrons, O2− (indicating the existence of encaged O2- anions) and...
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