Abstract
A modified solid-state route was attempted to prepare Y 0.95 Eu 0.05PO 4 PDP phosphor, involving milling a powdered mixture of YCl 3, EuCl 3, and (NH 4) 2HPO 4 and calcining the milling-derived precursor. The thermal decomposition behavior of the milling-derived precursor was investigated by thermogravimetric analysis (TGA). Phase compositions, morphologies, and luminescence properties of the prepared phosphor powder were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), and vacuum ultraviolet (VUV) emission spectra, respectively. The results indicated that the Y 0.95Eu 0.05PO 4 phosphor powder obtained at a calcination temperature of 900°C was xenotime-structured. The phosphor powder particles were uniform and spherical-shaped with a primary particle size of ∼200 nm. In comparison with that derived by the conventional solid-state route, the phosphor powder prepared by the modified solid-state route exhibited a higher color purity, presenting a predominant emission peak at 619 nm under 147 nm VUV excitation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
