Abstract
This article reports photoluminescence in Eu3+ and Dy3+ doped Ca2SrAl2O6 aluminate phosphor. Here combustion technique is used to synthesize a series of phosphors. The excitation spectra of Ca2SrAl2O6:Eu3+ phosphor appears at 396 nm, under which we get a prominent emission bands at 590–596 nm and another peak located at 616 nm that corresponds to the orange-red region. These spectral bands are assigned due to 5D0→7F1, 7F2 electronic transitions of activator Eu3+ ion, respectively. Whereas, Ca2SrAl2O6:Dy3+ phosphor shows two bands that correspond to 476 and 573 nm when excited by 352 nm. These two emission peaks correspond to the well-known 4F9/2→6H15/2, 6H13/2 transitions of rare-earth Dy3+ ion, respectively. Thus, from the observed photoluminescence properties, it is seen that prepared aluminate phosphor may be a suitable material for solid-state lighting.
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Acknowledgements
A N Yerpude is thankful to Gondwana University, Gadchiroli, India (Project Ref. No. No./GUG/DIIL/609/2020, dated 14/02/2020) for financial assistance and constant encouragement.
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Yerpude, A.N., Ramteke, S.K., Pawade, V.B. et al. Ln3+ (Eu3+ and Dy3+) luminescence in Ca2SrAl2O6 phosphor for solid-state lighting. Bull Mater Sci 45, 199 (2022). https://doi.org/10.1007/s12034-022-02787-1
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DOI: https://doi.org/10.1007/s12034-022-02787-1