Journal
OPTIK
Volume 147, Issue -, Pages 321-327Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijleo.2017.08.095
Keywords
Eu3+; Luminescence; Charge compensator; BaCa2MgSi2O8
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Funding
- Jiangxi University of Science and Technology Start-up Fund for Doctoral Scientific Research [15014]
- Educational Commission of Jiangxi Province of China [GJJ150632, GJJ160672]
- Natural Science Foundation of Jiangxi Province [20161BAB216124]
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The Eu3+ singly doped and Eu3+-R+ (R=Na, K) codoped BaCa2MgSi2O8 phosphors were prepared through high temperature solid state reaction technique. The phase structures, morphologies and luminescence properties were investigated. The phosphors can be excited by 396 nm radiation and exhibit red emission, the most intense emission locates at 614nm. The CIE (Commission Internationale de l'Eclairage, International Commission on Illumination) chromaticity coordinates (0.659, 0.341) are very close to the NTSC (National Television Standards Committee) standard values. The influence of R+ ions on the morphology, luminescence spectra, decay curves and thermal quenching properties were discussed, the emission intensity of Eu3+-Li+ codoped phosphor is higher than that of Eu3+-Na+ or Eu3+-K+, only Li+ can enhance the emission intensity in this study. (C) 2017 Elsevier GmbH. All rights reserved.
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