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Orange–yellow emitting long afterglow phosphors Li2Ca0.4Sr0.6SiO4:Eu2+, and Li2Ca0.4Sr0.6SiO4:Eu2+,Dy3+ were synthesized via a high temperature solid-state reaction in a reducing atmosphere (N2:H2=95:5). X-ray diffraction (XRD), photoluminescence spectroscope (PLS), long afterglow spectroscope (LAS), thermal luminescence spectroscope (TLS) were performed to characterize the physical properties of...
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