Color tunable and thermally stable luminescence of Tb{sup 3+} doped Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors

doi:https://doi.org/10.1016/J.MATERRESBULL.2012.04.010

Title: Color tunable and thermally stable luminescence of Tb{sup 3+} doped Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors

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Abstract

Highlights: ► Lowest spin-allowed and spin-forbidden f–d transitions locate at 250 and 280 nm. ► Cross relaxation shortens lifetime of {sup 5}D{sub 3} level, while that of {sup 5}D{sub 4} are unaffected. ► Cross-relaxation can explain concentration quenching of the {sup 5}D{sub 3} emission. ► Dipole–quadrupole interaction is responsible for the non-radiative relaxation. ► Li{sub 4}SrCa(SiO{sub 4}){sub 2}:Tb{sup 3+} is thermally stable and color tunable phosphor. -- Abstract: Tb{sup 3+} ions activated Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors were synthesized using a solid state reaction method. The phase impurity was checked by XRD. The photoluminescence (PL) excitation spectrum, emission spectra at room and high temperature, decay curves of samples with different Tb{sup 3+} ions concentration were studied in detail. Cross-relaxation and the Inokuti–Hirayama model were used to analyze the experimental results. Li{sub 4}SrCa(SiO{sub 4}){sub 2}:xTb{sup 3+} are thermally stable and color tunable phosphors.

Authors:

Zhang, Xinmin ^[1]

College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004 (China)

Publication Date:: 2012-08-15

OSTI Identifier:: 22215181

Resource Type:: Journal Article

Journal Name:: Materials Research Bulletin

Additional Journal Information:: Journal Volume: 47; Journal Issue: 8; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; DOPED MATERIALS; EMISSION SPECTRA; EXCITATION; INTERACTIONS; PHOSPHORS; PHOTOLUMINESCENCE; RELAXATION; SILICATES; SILICON OXIDES; SOLIDS; X-RAY DIFFRACTION

Citation Formats


                    Zhang, Xinmin, and Seo, Hyo Jin, E-mail: hjseo@pknu.ac.kr. Color tunable and thermally stable luminescence of Tb{sup 3+} doped Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors.  United States: N. p., 2012. 
        Web.  doi:10.1016/J.MATERRESBULL.2012.04.010.

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                    Zhang, Xinmin, & Seo, Hyo Jin, E-mail: hjseo@pknu.ac.kr. Color tunable and thermally stable luminescence of Tb{sup 3+} doped Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors.  United States.  https://doi.org/10.1016/J.MATERRESBULL.2012.04.010

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                    Zhang, Xinmin, and Seo, Hyo Jin, E-mail: hjseo@pknu.ac.kr. Wed .  
        "Color tunable and thermally stable luminescence of Tb{sup 3+} doped Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors".  United States.  https://doi.org/10.1016/J.MATERRESBULL.2012.04.010.

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@article{osti_22215181,

  title        = {Color tunable and thermally stable luminescence of Tb{sup 3+} doped Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors},

  author       = {Zhang, Xinmin and Seo, Hyo Jin, E-mail: hjseo@pknu.ac.kr},

  abstractNote = {Highlights: ► Lowest spin-allowed and spin-forbidden f–d transitions locate at 250 and 280 nm. ► Cross relaxation shortens lifetime of {sup 5}D{sub 3} level, while that of {sup 5}D{sub 4} are unaffected. ► Cross-relaxation can explain concentration quenching of the {sup 5}D{sub 3} emission. ► Dipole–quadrupole interaction is responsible for the non-radiative relaxation. ► Li{sub 4}SrCa(SiO{sub 4}){sub 2}:Tb{sup 3+} is thermally stable and color tunable phosphor. -- Abstract: Tb{sup 3+} ions activated Li{sub 4}SrCa(SiO{sub 4}){sub 2} phosphors were synthesized using a solid state reaction method. The phase impurity was checked by XRD. The photoluminescence (PL) excitation spectrum, emission spectra at room and high temperature, decay curves of samples with different Tb{sup 3+} ions concentration were studied in detail. Cross-relaxation and the Inokuti–Hirayama model were used to analyze the experimental results. Li{sub 4}SrCa(SiO{sub 4}){sub 2}:xTb{sup 3+} are thermally stable and color tunable phosphors.},

  doi          = {10.1016/J.MATERRESBULL.2012.04.010},

  url          = {https://www.osti.gov/biblio/22215181},
  journal      = {Materials Research Bulletin},

  issn         = {0025-5408},

  number       = 8,

  volume       = 47,

  place        = {United States},

  year         = {2012},

  month        = {8}

}

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