Nanocrystalline yttrium vanadate doped with europium ions powders were synthesized via sol-gel method based on decomposition of metal-polymer complex. X-ray diffraction analysis showed that samples had pure tetragonal phase without any impurities. Scanning electron microscopy and static light scattering technique were used to study morphology and size of prepared nanoparticles. Average diameter of the nanoparticles was about 40 nm. The changes in structural and luminescence properties were observed as a function of the first and second calcination temperature. The optimal conditions for synthesis of nanoparticles were determined asТ1=500 °С, t1=1 h;Т2=950 °С, t2=1.5 h. The effect of different media surrounding the nanoparticles on their luminescence properties and lifetime was investigated and discussed in terms of effective refractive index. It was found that the observed lifetime of YVO4:Eu3+ 5 at.% nanophosphor was decreased from 0.64 ms in air (nmed=1) to 0.45 ms in chalcogenide glass As39S61 (nmed=2.39).
参考文献
| [1] | Feldmann C, Justel T, Ronda C R, Schmidt P J. Inorganic luminescent materials:100 years of research and applica-tion. Adv. Funct. Mater., 2003, 13(7):511.,2003. |
| [2] | Resa Mozafari M. Nanomaterials and Nanosystems for Biomedical Applications. Dordrecht:Springer, 2007. 159.,2007. |
| [3] | Ropp R C. Luminescence and the Solid State. 2nd Edition, Amsterdam Netherlands:Elsevier, 2004. 711.,2004. |
| [4] | Yen W M, Weber M J. Inorganic Phosphors:Compositions, Preparations, and Optical Properties. New York:CRC Press, 2004.,2004. |
| [5] | Golyeva E V, Kolesnikov I E. Synthesis of luminescent tungstate and yttrium vanadate nanoparticles doped with europium. The VII National conference on chemistry and nanomaterials of young scientists, PhD and students with the international participation Mendeleev-2013, St. Pe-tersburg:SOLO, 2013.,2013. |
| [6] | Huignard A, Buissette V, Franville A C, Gacoin T, Boilot J P. Emission processes in YVO4:Eu nanoparticles. J. Phys. Chem., 2003, B107:6754.,2003. |
| [7] | Peng H, Huang S, Sun L D, Yan C H. Analysis of surface effect on luminescent properties of Eu3+ in YVO4 nanocrystals. J. Phys. Lett. A, 2007, 367:211.,2007. |
| [8] | Zhang M F, Shi S J, Meng J X, Wang X Q, Fan H, Zhu Y C, Wang X Y, Qian Y T. Preparation and characterization of near-infrared luminescent bifunctional core/shell nano-composites. J. Phys. Chem. C, 2008, 112:2825.,2008. |
| [9] | Georgescu S, Cotoi E, Voiculescu A M, Toma O. Effects of particle size on the luminescence of YVO4:Eu nanocrystals. Romanian Reports in Physics, 2008, 60(4):947.,2008. |
| [10] | Wang Y H, Zuo Y Y, Gao H. Luminescence properties of nanocrystalline YVO4:Eu3+under UV and VUV excitation. Mater. Res. Bull., 2006, 41:2147.,2006. |
| [11] | Wu X C, Tao Y R, Song C Y, Mao C J, Dong L, Zhu J J. Morphological control and luminescent properties of YVO4:Eu nanocrystals. J. Phys. Chem., 2006, B110:15791.,2006. |
| [12] | Zhu L, Li J Y, Li Q, Liu X D, Meng J, Cao X Q. Sono-chemical synthesis and photoluminescent property of YVO4:Eu nanocrystals. Nanotechnology, 2007, 18:055604.,2007. |
| [13] | Zhang J, Wulantuya, Di X W, Liu Z L, Xu G, Xu S M. Preparation of YVO4:RE(RE=Yb3+/Er3+, Yb3+/Tm3+)nanoparticles via microemulsion-mediated hydrothermal method. Trans. Nonferrous Met. Soc. China, 2010, 20:231.,2010. |
| [14] | Choi S H, Moon Y M, Jung H-K. Luminescent properties of PEG-added nanocrystalline YVO4:Eu3+phosphor pre-pared by a hydrothermal method. J. Lumin., 2010, 130:549.,2010. |
| [15] | Li Y, Hong G. Synthesis and luminescence properties of nanocrystalline YVO4:Eu3+. J. Sol. State Chem., 2005, 178:645.,2005. |
| [16] | Wang J, Xu Y H, Hojamberdiev M, Peng J H, Zhu G Q. Na2EDTA-assisted hydrothermal synthesis and lumines-cent properties of YVO4:Eu3+with different morfologies in a wide pH range. Mater. Sci. Eng., 2009, 156:42.,2009. |
| [17] | Wang J, Xu Y H, Hojamberdiev M. Hydrothermal synthe-sis of well-dispersed YVO4:Eu3+ microspheres and their photoluminescence properties. J. Alloys Compd., 2009, 481:896.,2009. |
| [18] | Wang J, Xu Y H, Hojamberdiev M, Zhu G Q. Influence of sodium dodecyl sulfonate(SDS)on the hydrothermal syn-thesis of YVO4:Eu3+crystals in a wide pH range. J. Alloys Compd., 2009, 487:358.,2009. |
| [19] | Wang J, Hojamberdiev M, Xu Y H, Peng J H. Nonionic surfactant-assisted hydrothermal synthesis of YVO4:Eu3+powders in a wide pH range and their luminescent proper-ties. Mater. Chem. Phys., 2011, 125:82.,2011. |
| [20] | Blasse G. On the Eu3+fluorescence of mixed metal oxides. IV. The Photoluminescent Efficiency of Eu3+-Activated Oxides. J. Chem. Phys., 1966, 45:2356.,1966. |
| [21] | Fu Z L, Zhou S H, Pan T Q, Zhang S Y. Preparation and luminescent properties of cubic Eu3+:Y2O3 nanocrystals and comparison to bulk Eu3+:Y2O3. J. Lumin., 2007, 124:213.,2007. |
| [22] | Wiglusz R J, Grzyb T, Lis S, Strek W. Hydrothermal prepa-ration and photoluminescent properties of MgAl2O4:Eu3+spinel nanocrystals. J. Lumin., 2010, 130:434.,2010. |
| [23] | Meltzer R, Feofilov S, Tissue B, Yuan H B. Dependence of fluorescence lifetimes of Y2O3:Eu3+ nanoparticles on the surrounding medium. Phys. Rev. B, 1999, 60:14012.,1999. |
| [24] | Zhou Y H, Lin J. Morphology control and luminescence properties of YVO4:Eu phosphors prepared by spray py-rolysis. Opt. Mater., 2005, 27:1426.,2005. |
| [25] | Devaraju M K, Yin S, Sato Tsugio. Solvothermal synthesis, controlled morphology and optical properties of Y2O3:Eu3+nanocrystals. J. Cryst. Growth, 2009, 311:580.,2009. |
| [26] | Hreniak D, Doskocz J, Gluchowski P, Lisiecki R, Strek W, Vu N, Loc D X, Anh T K, Bettinelli M, Speghini A. En-hancement of luminescence properties of Eu3+:YVO4 in polymeric nanocomposites upon UV excitation. J. Lumin., 2011, 131:473.,2011. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%