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Research Article
Effect of Anionic Group [SiO4]4-/[PO4]3- on the Luminescence Properties of Dy3+-Doped Tungstate Structural Compounds
Zhijian Peng
China University of Geosciences Beijing
Corresponding Author
ORCiD: https://orcid.org/0000-0002-8241-1799
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The novel scheelite structures of Li2Ca(WO4)2 , Li2Ca2(WO4)(SiO4), and LiCa2(WO4)(PO4) fluorescent materials were successfully prepared using a high-temperature solid-phase method. The compounds were characterized by XRD, EDS, and XRF. The test results showed that the substitution of [WO4]2- by [SiO4]4- /[PO4]3- tetrahedron in tungstate had no significant influence on the crystal structure of the Li2Ca(WO4)2. When Dy3+ ions were introduced as an activator at an optimum doping concentration of 0.08% mol, all of the as-prepared phosphors generated yellow light emissions, and the emission peak was located close to 576 nm. Replacing [WO4]2- with [SiO4]4- /[PO4]3- tetrahedron significantly increased the luminescence of the Li2Ca(WO4)2 phosphors. In addition, the LiCa2(WO4)(PO4):zDy3+ phosphors had the best luminescence properties, decay life (τ = 0.049 ms), and thermal stability (87.8%).
Keywords
phosphors, scheelite structure, luminescence property, anion substitution
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CURRENT STATUS: Under Revision
Version 1
Posted 22 Dec, 2020
No community comments so far
Editorial decision: Major revisions
On 05 Jan, 2021
Review #2 received
Received 02 Jan, 2021
Review #1 received
Received 21 Dec, 2020
Reviewer #2 agreed
On 20 Dec, 2020
Reviewer #1 agreed
On 19 Dec, 2020
Reviewers invited
Invitations sent on 18 Dec, 2020
Editor assigned
On 15 Dec, 2020
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On 15 Dec, 2020
Editor invited
On 15 Dec, 2020
First submitted
On 14 Dec, 2020
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Subject Areas
Ceramics
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This preprint is under consideration at Journal of Advanced Ceramics. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Effect of Anionic Group [SiO4]4-/[PO4]3- on the Luminescence Properties of Dy3+-Doped Tungstate Structural Compounds
Zhijian Peng
China University of Geosciences Beijing
Corresponding Author
ORCiD: https://orcid.org/0000-0002-8241-1799
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Revision
Version 1
Posted 22 Dec, 2020
No community comments so far
Editorial decision: Major revisions
On 05 Jan, 2021
Review #2 received
Received 02 Jan, 2021
Review #1 received
Received 21 Dec, 2020
Reviewer #2 agreed
On 20 Dec, 2020
Reviewer #1 agreed
On 19 Dec, 2020
Reviewers invited
Invitations sent on 18 Dec, 2020
Editor assigned
On 15 Dec, 2020
Submission checks complete
On 15 Dec, 2020
Editor invited
On 15 Dec, 2020
First submitted
On 14 Dec, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Ceramics
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The novel scheelite structures of Li2Ca(WO4)2 , Li2Ca2(WO4)(SiO4), and LiCa2(WO4)(PO4) fluorescent materials were successfully prepared using a high-temperature solid-phase method. The compounds were characterized by XRD, EDS, and XRF. The test results showed that the substitution of [WO4]2- by [SiO4]4- /[PO4]3- tetrahedron in tungstate had no significant influence on the crystal structure of the Li2Ca(WO4)2. When Dy3+ ions were introduced as an activator at an optimum doping concentration of 0.08% mol, all of the as-prepared phosphors generated yellow light emissions, and the emission peak was located close to 576 nm. Replacing [WO4]2- with [SiO4]4- /[PO4]3- tetrahedron significantly increased the luminescence of the Li2Ca(WO4)2 phosphors. In addition, the LiCa2(WO4)(PO4):zDy3+ phosphors had the best luminescence properties, decay life (τ = 0.049 ms), and thermal stability (87.8%).
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF.