Ln(Ln=Y/Gd)VO_4:Er~(3+)/Nd~(3+)的制备及发光性能Preparation and Luminescent Properties of Ln(Ln=Y,Gd)VO_4:Er~(3+)/Nd~(3+)
张文文;孟建新;刘应亮;谢国伟;
摘要(Abstract)：
采用高温固相法制备了Ln(Ln=Y,Gd)VO4掺Er3+或Nd3+的近红外发光材料。通过X射线粉末衍射(XRD)和光致发光(PL)对样品进行了表征。结果表明:所得产品结晶良好,属于四方晶系,锆石结构。研究了Er3+,Nd3+的含量、煅烧时间、煅烧温度等对材料近红外发光性质的影响。在Ln(Ln=Y/Gd)VO4:Er3+/Nd3+中,存在明显的从VO43-向Er3+/Nd3+的能量传递。两种不同的LnVO4(Ln=Y/Gd)基质对发光性质也有一定的影响。小浓度Bi3+的掺入可以明显提高YVO4:Er3+/Nd3+的近红外发光强度。
关键词(KeyWords)： LnVO4;Er~(3+);Nd~(3+);近红外发光;能量传递;稀土
基金项目(Foundation): 国家自然科学基金(20475021);; 广东省自然科学基金团队项目(05200555)资助
作者(Author): 张文文;孟建新;刘应亮;谢国伟;
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参考文献(References)：
- [1]Amantea R,Ghigna P,Mustarelli P,Mustarelli P,Tartara V.89Yand51V-NMR of Er-doped zircon-type YVO4and LuVO4[J].Journal of Solid State Chemistry,2005,178(5):1692.
- [2]Golab S,Ryba-Romanowski W,Dominiak-Dzik G,Lukasiewicz T,Swirkowicz M.Effect of temperature on excitation energy transfer and upconversion phenomena in Er∶YVO4single crystals[J].Journal of Alloys and Compounds,2001,323-324:288.
- [3]Koichi Onodera,Takayo Ogawa,Hitoshi Itagaki,Hiroshi Machi-da,Satoshi Wada.Crystal quality and optical properties for Nd∶GdVO4single crystals byfloatingzone method[J].Optical Materi-als,2004,26(4):343.
- [4]马会龙,臧竞存,刘玉龙,朱建慧,宋雪梅.掺钕钒酸钆晶体的光谱特征[J].中国稀土学报,2002,20(6):563.
- [5]Buissette V,Huignard A,Gacoin T,Boilot J P,Aschehoug P,Viana B.Luminescence properties of YVO4∶Ln(Ln=Nd,Yb,and Yb-Er)nanoparticles[J].Surface Science,2003,532-535:444.
- [6]Su Xueqing,Yan Bing.In situ chemical co-precipitation synthe-sis of YVO4∶RE(RE=Dy3+,Sm3+,Er3+)phosphors by assem-bling hybrid precursors[J].Journal of Non-Crystalline Solids,2005,351(43-45):3542.
- [7]Neeraj S,Kiji ma N,Cheetham A K.Novel red phosphors for solid state lighting;the system BixLn1-xVO4;Eu3+/Sm3+(Ln=Y,Gd)[J].Solid State Communications,2004,131(1):65.
- [8]Sun Yajuan,Liu Hongjian,Wang Xin,Kong Xianggui,Zhang Hong.Optical spectroscopy and visible upconversion studies of YVO4∶Er3+nanocrystals synthesized by a hydrothermal process[J].Chemistry of Materials,2006,18(11):2726.