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Effect of Host Structure and Concentration on the Luminescence of Eu3+ and Tb3+ in Borate Phosphors.

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Title: Effect of Host Structure and Concentration on the Luminescence of Eu3+ and Tb3+ in Borate Phosphors.
Authors: Thakur, Jyotsna1, Dutta, Dimple P.1, Bagla, Hemlata1, Tyagi, Avesh Kumar2, Ballato, J.
Source: Journal of the American Ceramic Society. Feb2012, Vol. 95 Issue 2, p696-704. 9p. 1 Black and White Photograph, 1 Chart, 10 Graphs.
Subjects: Calcite analysis, Photoluminescence measurement, Phosphors, Spectrum analysis, Borate crystals, Doping agents (Chemistry), Europium, Terbium
Abstract: Eu3+ and Tb3+ doped in nanocrystalline InBO3, GdBO3, and LaBO3 having three different morphs of calcite ( CaCO3) such as Calcite, Vaterite, and Aragonite, respectively, were synthesized by glycine-nitrate combustion method. Luminescence due to Eu3+ and Tb3+ doped individually as well as simultaneously in these three different morphs of calcite were investigated and compared. Also the effect of concentration of dopant ions on the luminescence was studied. The highest photoluminescence emission intensity was observed for RE0.05M0.95BO3 ( RE = Eu3+, Tb3+, M = In, Gd, La) samples. Further increase in doping led to concentration quenching of the luminescence. In case of the co-doped borates, the energy transfer between the co-doped rare earth ions was influenced by the host crystal structure. This study reveals that there is remarkable effect of the crystal structure of host and concentration of dopant ions on the luminescence. [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
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PubTypeId: academicJournal
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  Data: Effect of Host Structure and Concentration on the Luminescence of Eu<superscript>3+</superscript> and Tb<superscript>3+</superscript> in Borate Phosphors.
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  Data: <searchLink fieldCode="AR" term="%22Thakur%2C+Jyotsna%22">Thakur, Jyotsna</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dutta%2C+Dimple+P%2E%22">Dutta, Dimple P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bagla%2C+Hemlata%22">Bagla, Hemlata</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tyagi%2C+Avesh+Kumar%22">Tyagi, Avesh Kumar</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ballato%2C+J%2E%22">Ballato, J.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Feb2012, Vol. 95 Issue 2, p696-704. 9p. 1 Black and White Photograph, 1 Chart, 10 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Calcite+analysis%22">Calcite analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Photoluminescence+measurement%22">Photoluminescence measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphors%22">Phosphors</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Borate+crystals%22">Borate crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Europium%22">Europium</searchLink><br /><searchLink fieldCode="DE" term="%22Terbium%22">Terbium</searchLink>
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  Data: Eu3+ and Tb3+ doped in nanocrystalline InBO3, GdBO3, and LaBO3 having three different morphs of calcite ( CaCO3) such as Calcite, Vaterite, and Aragonite, respectively, were synthesized by glycine-nitrate combustion method. Luminescence due to Eu3+ and Tb3+ doped individually as well as simultaneously in these three different morphs of calcite were investigated and compared. Also the effect of concentration of dopant ions on the luminescence was studied. The highest photoluminescence emission intensity was observed for RE0.05M0.95BO3 ( RE = Eu3+, Tb3+, M = In, Gd, La) samples. Further increase in doping led to concentration quenching of the luminescence. In case of the co-doped borates, the energy transfer between the co-doped rare earth ions was influenced by the host crystal structure. This study reveals that there is remarkable effect of the crystal structure of host and concentration of dopant ions on the luminescence. [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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      – Type: doi
        Value: 10.1111/j.1551-2916.2011.04838.x
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 9
        StartPage: 696
    Subjects:
      – SubjectFull: Calcite analysis
        Type: general
      – SubjectFull: Photoluminescence measurement
        Type: general
      – SubjectFull: Phosphors
        Type: general
      – SubjectFull: Spectrum analysis
        Type: general
      – SubjectFull: Borate crystals
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      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Europium
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      – SubjectFull: Terbium
        Type: general
    Titles:
      – TitleFull: Effect of Host Structure and Concentration on the Luminescence of Eu3+ and Tb3+ in Borate Phosphors.
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            NameFull: Thakur, Jyotsna
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            NameFull: Dutta, Dimple P.
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            NameFull: Bagla, Hemlata
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            NameFull: Tyagi, Avesh Kumar
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              Text: Feb2012
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              Y: 2012
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