利用溶剂热法,在190℃保温12h的条件下制备纳米La0.995Eu0.005PO4晶体.对所制备的样品进行了XRD、TEM和荧光光谱测试,分析了由于PO43-浓度不同而引起的样品形貌及光学性质的变化.利用J-O理论由发射光谱计算了La0.995Eu0.005PO4的光学跃迁强度参数Ω2和Ω4,根据XRD分析、TEM及光学跃迁强度参数,发现PO43-浓度会对La0.995Eu0.005PO4的光学性质造成影响.
参考文献
| [1] | Lucas S;Champion E;Bregiroux D et al.Rare earth phosphate powders RePO4·nH2O (Re=La,Ce or Y)-Part Ⅰ.Synthesis and characterization[J].Journal of Solid State Chemistry,2004,177(4-5):1302. |
| [2] | Lucas S;Champion E et al.Rare earth phosphate powders RePO4·nH2O(Re=La,Ce or Y)-Part Ⅱ.Thermal behavior[J].Journal of Solid State Chemistry,2004,177(4-5):1312. |
| [3] | Uwe H;Richard K B;Dora I et al.Structure of rare-earth phosphate glasses by X-ray and neutron on diffraction[J].Journal of Non-Crystalline Solids,2005,351(40-42):3179. |
| [4] | 来华 .纳米稀土磷酸盐发光材料的合成以及发光性能的研究[D].长春:吉林大学,2009. |
| [5] | 王静,王昕,黄传顺,刘子峰,郑秋菊,许继辉.稀土磷酸盐RePO4（Re=La,Ce）纳米粉体的制备技术[J].材料导报,2008(Z2):111-113. |
| [6] | 杨志勇,罗澜,陈玮.稀土掺杂固体发光材料的光谱分析[J].光学学报,2007(04):598-602. |
| [7] | Judd B R .Optical absorption intensities of rare-earth ions[J].Physical Review,1961,127(03):750. |
| [8] | Ofelt G S .Intensities of crystal spectra of rare-earth ions[J].Journal of Chemical Physics,1962,37(03):511. |
| [9] | 黄世华 .ZnS:Sm3+的Ω参数[J].发光与显示,1983,4(04):24. |
| [10] | Huang S H;Lai S T;Lou L R et al.Upconversion in LaF3:Tm3+[J].Physical Review B:Condensed Matter,1981,24(01):59. |
| [11] | Weber M J;Crosswhite H M;Moos H W.Optical properties of ions in crystals[M].New York:Wiley-Interscience,1976:467. |
| [12] | Ribeiro S J L;Diniz R E O et al.Spectroscopic studies of the f→d ultraviolet transitions of Pr3+ in alkaline earth fluorides[J].Chemical Physics Letters,1994,220(02):214. |
| [13] | Wang X;Zhuang J;Peng Q et al.Liquid-solid-solution synthesis of biomedical hydroxyapati nanorods[J].Advanced Materials,2006,18(15):2031. |
| [14] | Ray S;Pramanik P;Singha A;Roy A .Optical properties of nanocrystalline Y2O3 : Eu3+[J].Journal of Applied Physics,2005(9):4312-1-4312-6-0. |
| [15] | Li C X;Quan Z W;Yang J et al.Highly uniform and monodisperse β-NaYF4:Ln3+ (Ln=Eu,Tb,Yb/Er,and Yb/Tm)hexagonalm icroprism crystals:Hydrothermalsyn thesis and luminescent properties[J].Inorganic Chemistry,2007,46(16):6329. |
| [16] | 李宝祥.稀土五磷酸盐晶体折射率和密度的测定[J].物理学报,1987(06):823-827. |
| [17] | Tanabe S T;Ohyagi T;Soga N .Compositional dependence of Jndd-Ofelt parameters of Er3+ ions in alkali-metal borate glasses[J].Physical Review B:Condensed Matter,1992,46(06):33052. |
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