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- W2767584191 abstract "To develop new white-light-emitting phosphor, a series of Ce3 +-Eu2 +-Sm3 + doped Ba2Gd2Si4O13 (BGS) phosphors were prepared by the solid-state reaction method, and their photoluminescence properties were studied. The Ce3 + and Eu2 + single-doped BGS show broad emission bands around in the region of 350–550 and 420–650 nm, respectively. By co-doping Ce3 +-Eu2 + into BGS, the energy transfer (ET) from Ce3 + to Eu2 + is inefficient, which could be due to the competitive absorption between the two activator ions. The Sm3 +-activated BGS exhibits an orangey-red emission in the region of 550–750 nm. To achieve white emission, the BGS:0.06Ce3 +,0.04Eu2 +,ySm3 + (0 ≤ y ≤ 0.18) phosphors were designed, in which the ET from Ce3 +/Eu2 + to Sm3 + was observed. The emission color can be tuned by controlling the Sm3 + concentration, and white emission was obtained in the BGS:0.06Ce3 +,0.04Eu2 +,0.06Sm3 + sample. The investigation of thermal luminescence stability for the typical BGS:0.06Ce3 +,0.04Eu2 +,0.06Sm3 + sample reveals that the emission intensities of both Eu2 + and Sm3 + demonstrate continuous decrease but the Ce3 + emission is enhanced gradually with increasing temperature. The corresponding reason has been discussed." @default.
- W2767584191 created "2017-11-17" @default.
- W2767584191 creator A5000788210 @default.
- W2767584191 creator A5027240571 @default.
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- W2767584191 date "2018-03-01" @default.
- W2767584191 modified "2023-10-09" @default.
- W2767584191 title "White-emission in single-phase Ba2Gd2Si4O13:Ce3+,Eu2+,Sm3+ phosphor for white-LEDs" @default.
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- W2767584191 doi "https://doi.org/10.1016/j.saa.2017.11.024" @default.
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