Abstract
A series of co-doped KSrPO4:Eu2+, Y3+ phosphors have been prepared through a high-temperature solid-state reaction at various temperatures. Luminescence spectroscopic characterization allowed to demonstrate that emission spectrum of original KSrPO4:Eu2+ phosphor that is typically dominated by Eu2+ 4f 65d1 → 4f 7 emission can be significantly modified by co-doping with Y3+ ions, which results in appearance of a broad defect emission. The latter makes the phosphor potential for WLED application. The Y3+ co-doping related defect emission was found to get enhanced with the increase of Y3+ content and synthesis temperature. The nature and peculiarities of the new defect emission are discussed.
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Funding
This work was financially supported by the Natural Science Foundation of Shanxi Province (201801D121020 and 201801D221132) and Key Research and Development (R&D) Projects of Shanxi Province (201903D121097). K.V.I. acknowledges partial support from Ministry of Science and Higher Education of the Russian Federation (Project no. FEUZ-2020-0060).
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Geng, X., Wang, L., Shi, Q. et al. Tuning Emission Spectrum of KSrPO4:Eu2+ Phosphor by Co-Doping with Y3+. Phys. Solid State 63, 832–838 (2021). https://doi.org/10.1134/S1063783421060081
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DOI: https://doi.org/10.1134/S1063783421060081