Crystal structure and luminescence property of a single-phase white light emission phosphor Sr3YNa(PO4)3F:Dy3+

Crystal structure and luminescence property of a single-phase white light emission phosphor... 3+ A series of single-phase Sr YNa(PO ) F:Dy phosphors were successfully synthesized via a conventional solid state reac- 3 4 3 tion process. The powder X-ray diffraction patterns were utilized to confirm the phase composite and crystal structure. The phosphor could be excited by the ultraviolet visible light in the region from 300 to 420 nm, and it shown two dominant emis- 4 6 sion bands peaking at 484 nm (blue light) and 580 nm (yellow light) which originated from the transitions of F → H 9/2 15/2 4 6 3+ 3+ and F → H of Dy , respectively. The optimum dopant concentration of Dy ions was confirmed to be 7 mol% in 9/2 13/2 3+ Sr YNa(PO ) F:Dy system and the concentration quenching mechanism is dipole–dipole interaction. The lifetime values 3 4 3 3+ of Dy ions at different concentrations (x = 0.03, 0.05, 0.07, 0.09 and 0.11) were determined to be about 0.855, 0.759, 0.686, 3+ 0.606 and 0.546 ms, respectively. The thermal stability of luminescence of Sr YNa(PO ) F:0.07Dy phosphor was also 3 4 3 investigated and the activated energy was deduced to be 0.228 eV, which shows good thermal stability. The chromaticity 3+ coordinates fall in the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Crystal structure and luminescence property of a single-phase white light emission phosphor Sr3YNa(PO4)3F:Dy3+

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-018-9380-x
Publisher site
See Article on Publisher Site

Abstract

3+ A series of single-phase Sr YNa(PO ) F:Dy phosphors were successfully synthesized via a conventional solid state reac- 3 4 3 tion process. The powder X-ray diffraction patterns were utilized to confirm the phase composite and crystal structure. The phosphor could be excited by the ultraviolet visible light in the region from 300 to 420 nm, and it shown two dominant emis- 4 6 sion bands peaking at 484 nm (blue light) and 580 nm (yellow light) which originated from the transitions of F → H 9/2 15/2 4 6 3+ 3+ and F → H of Dy , respectively. The optimum dopant concentration of Dy ions was confirmed to be 7 mol% in 9/2 13/2 3+ Sr YNa(PO ) F:Dy system and the concentration quenching mechanism is dipole–dipole interaction. The lifetime values 3 4 3 3+ of Dy ions at different concentrations (x = 0.03, 0.05, 0.07, 0.09 and 0.11) were determined to be about 0.855, 0.759, 0.686, 3+ 0.606 and 0.546 ms, respectively. The thermal stability of luminescence of Sr YNa(PO ) F:0.07Dy phosphor was also 3 4 3 investigated and the activated energy was deduced to be 0.228 eV, which shows good thermal stability. The chromaticity 3+ coordinates fall in the

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: May 30, 2018

References

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