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- W3115959143 abstract "• SrBPO 5 : UO 2 2+ /Pr 3+ phosphors were prepared by conventional Solid-state rection route. • UO 2 2+ codoping enhanced the orange-red emission of Pr 3+ due to energy transfer. • UO 2 2+ had changed the emission structure profile of Pr 3+ in SBP: UO 2 2+ , Pr 3+ . • Color tuning was observed from green to orange-red by varying dopants ratio. • UO 2 2+ was found to occupy two different interstitial positions in SBP: UO 2 2+ , Pr 3+ . SrBPO 5 doped with Pr 3+ , UO 2 2+ , Pr 3+ and UO 2 2+ were prepared through the conventional solid-state reaction route. PXRD and Raman spectroscopy studies confirmed the phase purity of these synthesized phosphors. The particle shape, size and distribution of dopants were studied using SEM and EDX. DFT calculations were carried out to check the suitability of the SrBPO 5 host for the phosphor applications. The optical bandgap of the phosphors was obtained from the recorded diffuse reflectance spectra. The orange-red emission of Pr 3+ got enhanced significantly in the presence of UO 2 2+ codopant due to energy transfer from UO 2 2+ to Pr 3+ . Interestingly, the UO 2 2+ codoping resulted in Stark splitting of Pr 3+ emission. The lifetime decay measurements confirmed the energy transfer and the Time-resolved emission spectra suggested dual-site occupancy of the uranyl ion in the SrBPO 5 host." @default.
- W3115959143 created "2021-01-05" @default.
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- W3115959143 date "2021-02-01" @default.
- W3115959143 modified "2023-10-15" @default.
- W3115959143 title "Color tuning from green to orange-red in SrBPO5: UO22+/Pr3+ phosphor via energy transfer for solid-state lighting applications" @default.
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- W3115959143 doi "https://doi.org/10.1016/j.rinp.2020.103757" @default.
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