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Novel inorganic xerogels doped with CaWO4:xDy: synthesis, characterization and luminescence properties

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Title: Novel inorganic xerogels doped with CaWO4:xDy: synthesis, characterization and luminescence properties
Source: Materials Chemistry and Physics. 199:166-172
Publisher Information: 2017.
Publication Year: 2017
Subject Terms: silver nanoparticles, sol-gel processes, calcium tungstate, luminescence, dysprosium(III) ions
Description: A series of novel phosphors based on silica xerogel doped with CaWO4:xDy(III) with various concentration of dysprosium ion was synthesized over a temperature of 800°C. The thermal analysis, XRD measurement and spectroscopic investigations of these materials are presented in this study. Steady state luminescence, luminescence excitation spectra as well as emission spectra have been measured. Under the ultraviolet light, the prepared phosphors show characteristic blue and yellow bands which correspond to 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ion, respectively. The concentration quenching effect occurs when the Dy3+ concentration is x = 0.1.We also present the possibility to increase the emission intensity of Dy(III) doped CaWO4 incorporated into silica xerogel as a result of its interaction with surface plasmons created by silver nanoparticles.
Document Type: Article
Language: English
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2017.07.00510.1016/j.matchemphys.2017.07.005
Accession Number: edsair.dris...02463..dbdb531cf6cec2a6019769fb8705b39a
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  Data: Novel inorganic xerogels doped with CaWO4:xDy: synthesis, characterization and luminescence properties
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  Data: <i>Materials Chemistry and Physics</i>. 199:166-172
– Name: Publisher
  Label: Publisher Information
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  Data: 2017.
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  Label: Publication Year
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  Data: 2017
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  Data: <searchLink fieldCode="DE" term="%22silver+nanoparticles%22">silver nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22sol-gel+processes%22">sol-gel processes</searchLink><br /><searchLink fieldCode="DE" term="%22calcium+tungstate%22">calcium tungstate</searchLink><br /><searchLink fieldCode="DE" term="%22luminescence%22">luminescence</searchLink><br /><searchLink fieldCode="DE" term="%22dysprosium%28III%29+ions%22">dysprosium(III) ions</searchLink>
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  Data: A series of novel phosphors based on silica xerogel doped with CaWO4:xDy(III) with various concentration of dysprosium ion was synthesized over a temperature of 800°C. The thermal analysis, XRD measurement and spectroscopic investigations of these materials are presented in this study. Steady state luminescence, luminescence excitation spectra as well as emission spectra have been measured. Under the ultraviolet light, the prepared phosphors show characteristic blue and yellow bands which correspond to 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ion, respectively. The concentration quenching effect occurs when the Dy3+ concentration is x = 0.1.We also present the possibility to increase the emission intensity of Dy(III) doped CaWO4 incorporated into silica xerogel as a result of its interaction with surface plasmons created by silver nanoparticles.
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      – SubjectFull: silver nanoparticles
        Type: general
      – SubjectFull: sol-gel processes
        Type: general
      – SubjectFull: calcium tungstate
        Type: general
      – SubjectFull: luminescence
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      – SubjectFull: dysprosium(III) ions
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      – TitleFull: Novel inorganic xerogels doped with CaWO4:xDy: synthesis, characterization and luminescence properties
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