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Synthesis and characterization of monodispersed BaSO4/Y2O3:Eu3+ core–shell submicrospheres by Ming Zhang; Xinhai Li; Zhixing Wang; Huajun Guo; Jinhui Li; Wanrong Liu is a Engineering article available to read on EtoBox.

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Spherical BaSO 4 particles have been coated with Y 2 O 3 :Eu 3+ phosphor layers (BaSO 4 /Y 2 O 3 :Eu 3+ ) by the wet chemical method. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dipersive spectroscopy (EDS), photoluminescence spectra were utilized to characterize the BaSO 4 /Y 2 O 3 :Eu 3+ core-shell-structured phosphor particles. The obtained core-shell phosphors consist of well dispersed submicron spherical particles with narrow size distribution. XRD result shows that no reaction occurred between the BaSO 4 cores and the Y 2 O 3 :Eu 3+ shells even after annealing at 1400 °C. TEM and EDS results show that BaSO 4 particles are well coated with the shell of Y 2 O 3 :Eu 3+ . The BaSO 4 /Y 2 O 3 :Eu 3+ core-shell particles show a red emission corresponding to 5 D 0 -7 F 2 of Eu 3+ under the excitation of ultraviolet.

Who reads Synthesis and characterization of monodispersed BaSO4/Y2O3:Eu3+ core–shell submicrospheres?

Author

Ming Zhang; Xinhai Li; Zhixing Wang; Huajun Guo; Jinhui Li; Wanrong Liu

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-5910)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)