Abstract
In this research work, Dy3+ doped alkali zinc alumino borosilicate (AZABS) glasses have been prepared via melt quenching technique. A series of AZABS glasses of varying concentrations of dysprosium (Dy3+) (0.1–2.5 mol%) was prepared. It was found that under UV excitation, 0.5 mol% Dy3+ doped glass exhibited maximum luminescence intensity. Subsequent photoluminescence studies like emission/excitation spectra, temperature-dependent photoluminescence and decay kinetics were also performed. The value of direct bandgap as calculated from Tauc Plot for 0.5 mol% of Dy3+ ions doped AZABS glass is 2.85 eV. Yellow to blue ratio and colorimetry analysis have showed that the as-prepared glasses are capable of producing cool white light. Application of Dexter theory showed that the energy transfer mechanism between the dopant ions in the glass matrix was of dipole–dipole nature. It is proposed that these Dy3+ doped AZABS glasses can be used as prospective materials in optoelectronic device applications such as solid-state lighting and w-LEDs.
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Data availability
The data that support the findings of this study are available on request from the corresponding author, [Prof. A.S. Rao]. The data are not publicly available due to restrictions, e.g. their containing information that could compromise the privacy of research participants.
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Acknowledgements
The work reported in this paper has been partially supported by a Major Research Project (EMR/2016/007766) sanctioned by SERB, Department of Science and Technology, Govt. of India, New Delhi. Dr. Sumandeep Kaur is grateful to CSIR, New Delhi for the award of Research Associate fellowship (08/133(0053) 2020-EMR-I).
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RB: Work plan, experimental work, manuscript writing. AP: Experimental Help, calculations. AVSY: Experimental Help, calculations. PR: Experimental Help, calculations. SK: Validation of results, Manuscript correction. ASR: Work plan, validation of results, manuscript correction.
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Bajaj, R., Prasad, A., Yeswanth, A.V.S. et al. Down-shifting photoluminescence studies of thermally stable Dy3+ ions doped borosilicate glasses for optoelectronic device applications. J Mater Sci: Mater Electron 33, 4782–4793 (2022). https://doi.org/10.1007/s10854-021-07667-8
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DOI: https://doi.org/10.1007/s10854-021-07667-8