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KMID : 1059520060500030232
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Journal of the Korean Chemical Society
2006 Volume.50 No. 3 p.232 ~ p.236
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Li-doped Y2SiO5:Ce, Blue-emitting Phosphor
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박중철/Park JC
전기완/Jeon KW
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Abstract
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The Y1.99-xMxCe0.01SiO5(M=Li, La, Nd, and Gd) phosphors were synthesized by solid-state reaction at 1350oC for 10h under reducing atmosphere in order to improve properties of blue emitting phosphors. Compared with commercial blue phosphors, the Y2SiO5:Ce blue phosphors substituted with various elements showed significant enhancement of the emission intensity. Particularly, 1 mol% Li doped Y2SiO5:Ce phosphors indicated the maximum emission intensity in the photoluminescence spectra. Thanks to SEM analyses revealed that the morphology of Y2SiO5:(Ce,Li) blue phosphors was a pseudo-spherical with particle size of 3 μm.
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KEYWORD
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