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Greenish–Yellow Luminescence in Vanadate Garnet Phosphors: Structural Characterization, Energy Transfer and Judd–Ofelt Analysis of Dy3+ Doped Ca2LiMg2V3O12

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Abstract

Undoped and the Dy3+ doped garnet type vanadate Ca2LiMg2V3O12 (CLMV) with various concentrations of the Dy3+ (0.01–0.09) were synthesized via solid-state reaction. The Powder XRD results confirm the phase formation of the samples. The SEM and EDAX with elemental mapping confirmed the morphological properties and elements present in the material respectively. The band gap energy of the CLMV and CLMV:0.07Dy3+ was calculated from the DRS measurements. The photoluminescence properties of the pure CLMV and the CLMV: xDy3+(x = 0.01–0.09) were studied under excitation at 347 nm and the emission at 577 nm. Also, the PL emission was taken for the dominated characteristic peak of the Dy3+ under the excitation at 387 nm. Lifetime decay analysis and the CIE color coordinates are also provided. The Judd–Ofelt intensity parameters were calculated from the excitation spectra and the radiative properties of the CLMV:0.07Dy3+ were explained. These results indicate that this phosphor is suitable for solid-state lighting applications.

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Acknowledgements

The authors are thankful to the management of Sri Sivasubramaniya Nadar College of Engineering (SSNCE), Chennai for their constant support to carry out the Research. The author, A. Princy thanks to the management for the financial support through SSN-JRF. We extend our thanks to the SSN Research Centre, for providing the powder XRD measurement facility.

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  1. Department of Physics, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai, Kalavakkam, Chennai, 603110, Tamil Nadu, India

    A. Princy, Kavia J. Albert, V. Rathina Mala & S. Masilla Moses Kennedy

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AP: Conceptualization, Data curation, Formal analysis, Investigation, Visualization, Writing—original draft. KJA: Review & editing, Formal analysis, Visualization. VRM: Formal analysis, Visualization. SMMK: Supervision, Writing—review & editing.

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Correspondence to S. Masilla Moses Kennedy.

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Princy, A., Albert, K.J., Mala, V.R. et al. Greenish–Yellow Luminescence in Vanadate Garnet Phosphors: Structural Characterization, Energy Transfer and Judd–Ofelt Analysis of Dy3+ Doped Ca2LiMg2V3O12. J Inorg Organomet Polym 33, 2399–2410 (2023). https://doi.org/10.1007/s10904-023-02687-9

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