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Stable Upconversion Luminescence Color in BiTa7O19:Er3+/Yb3+ Phosphors.

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Title: Stable Upconversion Luminescence Color in BiTa7O19:Er3+/Yb3+ Phosphors.
Authors: Li, Meiling1 (AUTHOR), Gao, Yuefeng2 (AUTHOR) gaoyuefeng@dlmu.edu.cn, Cao, Yongze1 (AUTHOR) cyz@dlmu.edu.cn, Liu, Xu1 (AUTHOR), Yu, Changhao1 (AUTHOR), Cao, Mengxue1 (AUTHOR), Chen, Baojiu1 (AUTHOR) bjchen@dlmu.edu.cn
Source: Journal of the American Ceramic Society. Jul2026, Vol. 109 Issue 7, p1-9. 9p.
Subjects: Photon upconversion, Layer structure (Solids), Phosphors, Luminescence measurement, Doping agents (Chemistry)
Abstract: Er3+/Yb3+ co‐doped BiTa7O19 (BT7O), CaTa4O11 (CTO), LiBi4Ta3O14 (LBTO), GdTaO4 (GTO) and Bi7Ta3O18 (B7T3O) tantalate‐based phosphors are prepared. The upconversion luminescence (UCL) spectra are measured under 980 nm laser excitation, and the UCL color (green‐to‐red ratio [Sgr]) is calculated. The effects of excitation power density, Er3+/Yb3+ co‐doped concentration, and temperature on Sgr were studied. The above variables have the least impact on BT7O:Er3+/Yb3+, and BT7O:Er3+/Yb3+ possesses a stable Sgr. BT7O, CTO, LBTO and GTO all have a layered structure. Er3+/Yb3+ exhibits a 2D distribution, and the Er3+/Yb3+ distribution layer spacings are different. BT7O has the largest layer spacing of 10.02 Å, thus having the highest and most stable Sgr. In B7T3O, Er3+/Yb3+ is in a 3D distribution, thus having the lowest and most unstable Sgr. This study explored the relationship between the lattice structure and Sgr, providing new ideas for obtaining upconversion phosphors with high and stable Sgr. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 195593971
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Stable Upconversion Luminescence Color in BiTa<subscript>7</subscript>O<subscript>19</subscript>:Er<superscript>3+</superscript>/Yb<superscript>3+</superscript> Phosphors.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Li%2C+Meiling%22">Li, Meiling</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Yuefeng%22">Gao, Yuefeng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> gaoyuefeng@dlmu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Cao%2C+Yongze%22">Cao, Yongze</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cyz@dlmu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Xu%22">Liu, Xu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Changhao%22">Yu, Changhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Mengxue%22">Cao, Mengxue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Baojiu%22">Chen, Baojiu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> bjchen@dlmu.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Jul2026, Vol. 109 Issue 7, p1-9. 9p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Photon+upconversion%22">Photon upconversion</searchLink><br /><searchLink fieldCode="DE" term="%22Layer+structure+%28Solids%29%22">Layer structure (Solids)</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphors%22">Phosphors</searchLink><br /><searchLink fieldCode="DE" term="%22Luminescence+measurement%22">Luminescence measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Er3+/Yb3+ co‐doped BiTa7O19 (BT7O), CaTa4O11 (CTO), LiBi4Ta3O14 (LBTO), GdTaO4 (GTO) and Bi7Ta3O18 (B7T3O) tantalate‐based phosphors are prepared. The upconversion luminescence (UCL) spectra are measured under 980 nm laser excitation, and the UCL color (green‐to‐red ratio [Sgr]) is calculated. The effects of excitation power density, Er3+/Yb3+ co‐doped concentration, and temperature on Sgr were studied. The above variables have the least impact on BT7O:Er3+/Yb3+, and BT7O:Er3+/Yb3+ possesses a stable Sgr. BT7O, CTO, LBTO and GTO all have a layered structure. Er3+/Yb3+ exhibits a 2D distribution, and the Er3+/Yb3+ distribution layer spacings are different. BT7O has the largest layer spacing of 10.02 Å, thus having the highest and most stable Sgr. In B7T3O, Er3+/Yb3+ is in a 3D distribution, thus having the lowest and most unstable Sgr. This study explored the relationship between the lattice structure and Sgr, providing new ideas for obtaining upconversion phosphors with high and stable Sgr. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1111/jace.70987
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 1
    Subjects:
      – SubjectFull: Photon upconversion
        Type: general
      – SubjectFull: Layer structure (Solids)
        Type: general
      – SubjectFull: Phosphors
        Type: general
      – SubjectFull: Luminescence measurement
        Type: general
      – SubjectFull: Doping agents (Chemistry)
        Type: general
    Titles:
      – TitleFull: Stable Upconversion Luminescence Color in BiTa7O19:Er3+/Yb3+ Phosphors.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Li, Meiling
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            NameFull: Gao, Yuefeng
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            NameFull: Cao, Yongze
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            NameFull: Liu, Xu
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            NameFull: Yu, Changhao
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            NameFull: Cao, Mengxue
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            NameFull: Chen, Baojiu
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          Dates:
            – D: 01
              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
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              Value: 109
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            – TitleFull: Journal of the American Ceramic Society
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