Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3821
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dc.contributor.authorNayak, Priyanka-
dc.contributor.authorNanda, Sushri Sangita-
dc.contributor.authorDash, S.-
dc.date.accessioned2022-12-23T08:19:46Z-
dc.date.available2022-12-23T08:19:46Z-
dc.date.issued2022-12-
dc.identifier.citation4th International Conference on Processing and Characterization of Materials and 12th National Conference on Processing and Characterization of Materials (ICPCM), NIT Rourkela, 9th-11th December 2022en_US
dc.identifier.urihttp://hdl.handle.net/2080/3821-
dc.descriptionCopyright belongs to proceeding publisheren_US
dc.description.abstractA series of doubly sensitized and Dy3+ activated YVO4 (YVO4: 3at%Dy3+ , 7at%Bi3+ , xMn2+) phosphors have been synthesized adopting the high temperature solid state reaction route. The detailed study on the structural, optical and photo-physical properties have been carried out through various analytical techniques to investigate the simultaneous effect of activator and sensitizers on the host matrix. Reitveld refinement of the X-ray Diffraction (XRD) profiles with low χ2 values authenticate better crystallinity with a tetragonal zircon type structure. The microstructural particle morphology has been explored through scanning electron microscopy (SEM) and the physio-chemical purity has been probed through the vibrational spectroscopy analysis. The emission spectral profile reveals that the Bi3+ sensitized phosphor exhibits broad emission band in the blue-violet region corresponding to the 3P1→1S0 transition along with the yellow emission of Dy3+ ( 4F9/2→6H13/2). Furthermore, on substituting Mn2+, a far red emission is observed with an efficient energy transfer to the Dy3+ ions, resulting in enhancement of the emission intensity. Thus, Bi3+ and Mn2+ doping reflects in broadening the emission spectra on a wide range of visible spectra, thereby increasing the applicability of the said phosphors.en_US
dc.subjectZircon structureen_US
dc.subjectRare Earthen_US
dc.subjectPhoto luminescenceen_US
dc.subjectEnergy Transferen_US
dc.subjectYellow phosphoren_US
dc.titleSimultaneous influence of dual sensitizers on photo-physical properties in Dy3+ activated YVO4 phosphorsen_US
dc.typePresentationen_US
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