生物标记用NaYF_4:Yb~(3+),Er_(3+)荧光探针的紫外上转换发光
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摘要
目的:开发980 nm激发紫外上转换发光的纳米粒子。方法:采用热解法合成Na YF4:Yb3+,Er3+;通过TEM、XRD和荧光光谱等方法对样品进行形貌、结构和发光性能的表征,研究紫外上转换发光性能。结果:Na YF4:Yb3+,Er3+纳米材料可产生波长为321、380和410 nm的紫外上转换发光。结论:980 nm二极管激光器可激发Na YF4:Yb3+,Er3+纳米粒子产生紫外上转换发光。
Objective: To develop the method of ultraviolet upconversion luminescence of rare earth doped nanoparticles induced by infrared diode laser excitation. Method: Na YF4: Yb3 +,Er3 +were prepared by thermal decomposition reaction. The morphology,structure,and property of samples were characterized by TEM,XRD and fluorescence spectrophotometer. Results: Ultraviolet upconversion luminescence of Na YF4: Yb3 +,Er3 +particles reduced in 321、380 and 410 nm. Conclusion: It can be concluded that ultraviolet upconversion luminescence of Na YF4: Yb3 +,Er3 +nanoparticles can be induced by infrared diode laser excitation.
Objective: To develop the method of ultraviolet upconversion luminescence of rare earth doped nanoparticles induced by infrared diode laser excitation. Method: Na YF4: Yb3 +,Er3 +were prepared by thermal decomposition reaction. The morphology,structure,and property of samples were characterized by TEM,XRD and fluorescence spectrophotometer. Results: Ultraviolet upconversion luminescence of Na YF4: Yb3 +,Er3 +particles reduced in 321、380 and 410 nm. Conclusion: It can be concluded that ultraviolet upconversion luminescence of Na YF4: Yb3 +,Er3 +nanoparticles can be induced by infrared diode laser excitation.
引文
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[2]F.Vetrone,J.C.Boyer,J.A.Capobianco.Concentration-dependent Near-infrared to Visible Up-conversion in Nanoerystanine and Bulk Y2O3:Er3+[J].Chemistry of Materials,2003,15(14):2737-2743.
[3]X.Zhang,C.Serrano,E.Daran,F.Lahoz,G.Lacoste,and A.Muoz-Yagüe.Infrared-laser-in duced Upconversion from Nd3+:La F3Heteroepitaxial Layers on Ca F2(111)Substrates by Molecular Beam Epitaxy[J].Phys.Rev.B,2000,62:4446.
[4]F.Xu,Z.Lv,Y.G.Zhang,G.Somesfalean,and Z.G.Zhang.Concentration Evaluation Method Using Broad-band Absorption Spectroscopy for Sulfur Dioxide Monitoring[J].Appl.Phys.Lett,2006,88:231109.
[5]C.Wang,L.Cheng,Z.Liu.Drug Delivery with Upconversion Nanoparticles for Multi-functional Targeted Cancer Cell Imaging and Therapy[J].Biomaterials,2011,32:1110-1120.
[6]Q.Lü,F.Y.Guo,L.Sun,A.H.Li,L.C.Zhao.Surface Modification of Zr O2:Er3+Nanoparticles to Attenuate Aggregation and Enhance Upconversion Fluorescence[J].J.Phys.Chem.C,2008,112:2836-2844.
[7]C.X.Li,D.M.Yang,P.A.Ma,Y.Y.Chen,Y.Wu,Z.Y.Hou,Y.L.Dai,J.H.Zhao,C.P.Sui,J.Lin.Multifunctional Upconversion Mesoporous Silica Nanostructures for Dual Modal Imaging and In Vivo Drug Delivery[J].Small 2013,9:4150-4159.
[8]G.Y.Chen,G.Somesfalean,Z.G.Zhang.Ultraviolet Upconversion Fluorescence in Rare-earth-ion-doped Y2O3Induced by Infrared Diode Laser Excitation[J].Optics Letters,2007,32:87-89.
[9]M.F.Joubert.Photon Avalanche Upconversion in Rare Earth Laser Materials[J].Optical Materials,1999,11:181-203.
[10]A.J.G.Adeva,R.Balda,J.Fernández,E.E.Nyeina,U.Hmmerich.Dynamics of the Infrared-to-Visible Upconversion in an Er3+-Doped KPb2Br5Crystal[J].Phys.Rev.B,2005,72:165116-165127.
[11]R.Balda,A.J.G.Adeva,M.Voda,J.Fernández.Upconversion Processes in Er3+-doped KPb2Cl5[J].Phys.Rev,B.2004,69:205203-8.
[12]G.Y.Chen,G.Somesfalean,Y.Liu,Z.G.Zhang,Q.Sun,F.P Wang.Upconversion Mechanism for Two-Color Emission in Rare-Earth-ion-Doped Zr O2Nanocrystals[J].Phys.Rev,B.2007,75:195204-5.