Al2O3 influence on structural, elastic, thermal properties of Yb3+ doped Ba–La-tellurite glass: Evidence of reduction in self-radiation trapping at 1μm emission

BALAJI, S, BISWAS, K, SONTAKKE, AD, GUPTA, Gaurav, GHOSH, D and ANNAPURNA, K (2014). Al2O3 influence on structural, elastic, thermal properties of Yb3+ doped Ba–La-tellurite glass: Evidence of reduction in self-radiation trapping at 1μm emission. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 133, 318-325.

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Official URL: https://www.sciencedirect.com/science/article/pii/...
Link to published version:: https://doi.org/10.1016/j.saa.2014.04.113
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    Abstract

    Ba–La-tellurite glasses doped with Yb3+ ions have been prepared through melt quenching technique by modifying their composition with the inclusion of varied concentration of Al2O3 to elucidate its effects on glass structural, elastic, thermal properties and Yb3+ ion NIR luminescence performance. The FTIR spectral analysis indicates Al2O3 addition is promoting the conversion of BOs from NBOs which have been generated during the process of depolymerisation of main glass forming TeO4 units. The elastic properties of the glass revealed an improved rigidity of the glass network on addition of Al2O3. In concurrence to this, differential thermal analysis showed an increase in glass transition temperature with improved thermal stability factor. Also, Yb3+ fluorescence dynamics demonstrated that, Al2O3 inclusion helps in restraining the detrimental radiation trapping of ∼1 μm emission.

    Item Type: Article
    Uncontrolled Keywords: 0301 Analytical Chemistry; 0303 Macromolecular and Materials Chemistry; 0306 Physical Chemistry (incl. Structural); Chemical Physics
    Identification Number: https://doi.org/10.1016/j.saa.2014.04.113
    Page Range: 318-325
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 07 Jun 2021 14:28
    Last Modified: 07 Jun 2021 14:30
    URI: http://shura.shu.ac.uk/id/eprint/27134

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