采用微乳液法合成了Y2 SiO5∶Eu3+系列荧光粉.利用XRD、扫描电镜(SEM)、光电子能谱(EDS)、荧光光谱、色坐标等研究了所制备荧光粉的结构、形貌和发光性能.光电子能谱数据验证了合成样品的离子掺杂量.荧光光谱测试表明,Y2SiO5∶Eu3监测光谱呈现200nm~ 300nm的宽带吸收峰和Eu3+的系列吸收峰.在253nm紫外光激发下,Y2SiO5∶Eu3材料的发射光谱为一个多峰谱,主峰分别为5D0→7F1(591nm)、5D0→7F2 (616nm)的发光峰.当Eu3+掺杂物质的量大于24%时,出现了浓度猝灭现象.通过色坐标图可知,当Eu3+掺杂量为24%时,荧光粉的色坐标(0.503,0.366)与标准的红光色坐标接近,表明Y2SiO5∶Eu3+是很好的近紫外光激发下的红色荧光粉.
参考文献
[1] | K. Riwotzki;M. Haase.Colloidal YVO_4:Eu and YP_(0.95)V_(0.05)O_4:Eu Nanoparticles: Luminescence and Energy Transfer Processes[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,200151(51):12709-12713. |
[2] | Strauss, M.;Destefani, T.A.;Sigoli, F.A.;Mazali, I.O..Crystalline SnO_2 nanoparticles size probed by Eu~(3+) luminescence[J].Crystal growth & design,201110(10):4511-4516. |
[3] | Ann M. Cross;P. Stanley May;Frank C. J. M. van Veggel.Dipicolinate Sensitization of Europium Luminescence in Dispersible 5%Eu:LaF3 Nanoparticles[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201035(35):14740-14747. |
[4] | C. C. Zhang;Z. M. Zhang;R. C. Dai.High-Pressure Raman and Luminescence Study on the Phase Transition of GdVO4:Eu~(3+) Microcrystals[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201042(42):18279-18282. |
[5] | Yeju Huang;Hongpeng You;Guang Jia.Hydrothermal Synthesis and Luminescence of Eu-Doped Ba_(0.92)Y_(2.15)F_(8.29) Submicrospheres[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200939(39):16962-16968. |
[6] | 吴宪君;徐家跃;张彦.BaMgAl10O17∶Eu3+红色荧光粉的合成及其发光性能[J].人工晶体学报,2014(10):2611-2614. |
[7] | 吴义炳;孙卓;阮凯斌;刘银春;张洪.Ca0.88TiO3∶0.12Eu3+红色荧光粉的结构与发光性能[J].发光学报,2014(8):932-938. |
[8] | 王萍;杨定明;何晓林;张蕾.蓝光激发的Na2ZnSiO4∶Eu3+红色荧光粉的合成及发光特性[J].硅酸盐学报,2015(1):93-97. |
[9] | 尹新豪;李云辉;高莹;杨秀云.水热合成花球状Y3BO6∶Eu3+及其光谱性能研究[J].无机化学学报,2014(9):2064-2074. |
[10] | 陶萍芳;庞起;覃利琴;莫炳桂.微米级NaYF4:Eu3+的水热合成及其荧光性能研究[J].发光学报,2014(12):1437-1442. |
[11] | Beata Grobelna;Beata Lipowska;Andrzej M. Klonkowski.Energy transfer in calcium tungstate doped with Eu(III) or Tb(III) ions incorporated into silica xerogel[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20061/2(1/2):191-196. |
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