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纳米级发光粉体YVO₄∶Eu的合成及光谱性质研究

Synthesis and spectra properties of nanosized YVO₄∶Eu

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【Author】 ZHANG Hongwu1, NIU Shuyun2, PENG Kun2,SUN Gongquan1, XIN Qin1(1.Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116000,China;2.Department of Chemistry, Liaoning Normal University,Dalian 116029,China)

【机构】中科院大连化学物理研究所；辽宁师范大学化学系；中科院大连化学物理研究所辽宁大连116000；辽宁大连116029；辽宁大连116000；辽宁大连116000；

【摘要】采用柠檬酸作为络合剂,通过络合溶胶凝胶法制备出纳米级的钒基发光材料YVO4∶Eu,并利用TEM,红外光谱以及荧光光谱对其进行研究。结果表明:用这种方法制备的YVO4∶Eu粉体粒径在100nm以下;与大颗粒的粉体相比,由于量子尺寸效应的影响,纳米级YVO4∶Eu的红外光谱发生明显的蓝移现象,而其发射光谱以及激发光谱未发生显著变化,可发出较纯正红光。更多还原

【Abstract】 By complexing solgel method, nanosized YVO4∶Eu phosphor was prepared. The phosphor was characterized by TEM,FTIR,FP. The experimental result showed that the particle size of the phosphor was below 100nm and the blue shift about IR spectra was observed, while the phosphor spectra was not changed in comparison with the commercial phosphor.更多还原