采用固相陶瓷方法制备了Dy3+掺杂的CaWO4∶Dy3x+荧光粉体.采用XRD、SEM和FT-IR对制备粉体的微观结构进行了表征;采用荧光分析法研究了制备的荧光体的室温光致发光性能;探讨了掺杂剂Dy3+浓度对CaWO4∶Dy3x+荧光粉体的微结构和光致发光性能的影响.结果表明,制备的CaWo4∶Dy3x+荧光粉体为白钨矿结构,Dy3+的掺入会抑制CaWO4∶Dy3x+晶粒的生长.当Dy3+的掺入量为1%(摩尔分数)时,其在480nm(蓝)和575nm(黄)的发射强度达到最大;随着Dy3+浓度的增加,其特征发射峰(480nm和575nm)强度反而逐渐下降.
参考文献
| [1] | Smith W B;Powell R C .Energy transfer in CaWO4:Sm3+[J].Journal of Chemical Physics,1982,76(02):223. |
| [2] | Zhang YM;Yang FD;Yang J;Tang Y;Yuan P .Synthesis of crystalline SrMoO4 nanowires from polyoxometalates[J].Solid State Communications,2005(12):759-763. |
| [3] | Kato, A;Oishi, S;Shishido, T;Yamazaki, M;Iida, S .Evaluation of stoichiometric rare-earth molybdate and tungstate compounds as laser materials[J].The journal of physics and chemistry of solids,2005(11):2079-2081. |
| [4] | 徐叙瑢;苏免曾.发光学与发光材料[M].北京:化学工业出版社,2004:303. |
| [5] | Sczancoski JC;Cavalcante LS;Joya MR;Espinosa JWM;Pizani PS;Varela JA;Longo E .Synthesis, growth process and photoluminescence properties of SrWO4 powders[J].Journal of Colloid and Interface Science,2009(1):227-236. |
| [6] | J.C. Sczancoski;L.S. Cavalcante;N.L. Marana;R.O. da Silva;R.L. Tranquilin;M.R. Joya;P.S. Pizani;.A. Varela;J.R. Sambrano;M. Siu Li;E. Longo;J. Andres .Electronic structure and optical properties of BaMoO4 powders[J].Current applied physics: the official journal of the Korean Physical Society,2010(2):614-624. |
| [7] | Somchai Thongtem;Surangkana Wannapop;Titipun Thongtem .Characterization of CoWO_4 nano-particles produced using the spray pyrolysis[J].CERAMICS INTERNATIONAL,2009(5):2087-2091. |
| [8] | Bi J.;Xiao DQ.;Gao DJ.;Yu P.;Yu GL.;Zhang W.;Zhu JG. .BaMoO4 thin films prepared by electrochemical method at room temperature[J].Crystal Research and Technology: Journal of Experimental and Industrial Crystallography,2003(11):935-940. |
| [9] | Jian Bi;Chun-Hua Cui;Xin Lai;Fang Shi;Dao-Jiang Gao .Synthesis of luminescent SrMoO_4 thin films by a non-reversible galvanic cell method[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2008(3):743-747. |
| [10] | Chunhua Cui;Jian Bi;Daojiang Gao .Room temperature synthesis of crystallized luminescent SrWO_4 films by an adjustable galvanic cell method[J].Journal of Crystal Growth,2008(19):4385-4389. |
| [11] | Cui C;Bi J;Gao D .Room-temperature preparation of highly crystallized CaWO4 film by a galvanic cell method[J].Materials Letters,2008,62(01):2222. |
| [12] | Cui C;Bi J;Gao D et al.Morphology and crystal phase control in preparation of highly crystallized BaWO4 film via galvanic cell method[J].Journal of Alloys and Compounds,2008,462(1-2):L16. |
| [13] | Rosa I L V;Marques A P A;Tanaka M T S et al.Europium(Ⅲ) concentration effect on the spectroscopic and photoluminescent properties of BaMoO4:Eu[J].Journal of Fluorescence,2009,19(03):495. |
| [14] | Z. Chen;Q. Gong;J. Zhu;Y.P. Yuan;L.W. Qian;X.F. Qian .Controllable Synthesis Of Hierarchical Nanostructures Of Cawo_4 And Srwo_4 Via A Facile Low-temperature Route[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2009(1):45-50. |
| [15] | Titipun Thongtem;Sulawan Kaowphong;Somchai Thongtem .Influence of cetyltrimethylammonium bromide on the morphology of AWO_4 (A = Ca, Sr) prepared by cyclic microwave irradiation[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2008(23):7765-7769. |
| [16] | Rao B;Buddhudu S .Emission analysis of RE3+ (Dy3+ or Tb3 +):Ca3 Ln (Y,Gd) (VO4) 3 powder phosphors[J].Materials Chemistry and Physics,2008,111(01):65. |
| [17] | Su Q;Liang HB;Li CY;He H;Lu YH;Li J;Tao Y .Luminescent materials and spectroscopic properties of Dy3+ ion[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(0):927-930. |
| [18] | Xiu Z;Liu S;Ren M et al.Preparation and photoluminescence of Dy3+-doped Sr5 (PO4)3Cl nanorods[J].Journal of Alloys and Compounds,2006,425(1-2):261. |
| [19] | Lei, F;Yan, B .Hydrothermal synthesis and luminescence of CaMO4 : RE3+ (M = W, Mo; RE = Eu, Tb) submicro-phosphors[J].Journal of Solid State Chemistry,2008(4):855-862. |
| [20] | Rosa ILV;Marques APA;Tanaka MTS;Melo DMA;Leite ER;Longo E;Varela JA .Synthesis, characterization and photophysical properties of Eu3+ doped in BaMoO4[J].Journal of Fluorescence,2008(2):239-245. |
| [21] | Lakshminarayana G;Yang R;Mao M et al.Photoluminescence of Sm3+,Dy3+,and Tm3+-doped transparent glass ceramics containing CaF2 nanocrystals[J].Journal of Non-Crystalline Solids,2009,355(52-54):2668. |
| [22] | Bigotta, S;Tonelli, M;Cavalli, E;Belletti, A .Optical spectra of Dy3+ in KY3F10 and LiLuF4 crystalline fibers[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2010(1):13-17. |
| [23] | Wei Y;Tu C;Wang H et al.Optical spectroscopy of NaLa(WO4)2:Dy3+ single crystal[J].Journal of Alloys and Compounds,2007,438(1-2):310. |
| [24] | Raju G S R;Jung H C;Park J Y et al.Synthesis and luminescent properties of Dy3+:GAG nanophosphors[J].Journal of Alloys and Compounds,2009,481(1-2):730. |
| [25] | Raju G S R;Park J Y;Jung H C et al.Luminescence properties of Dy3+:GdAlO3 nanopowder phosphors[J].Current Applied Physics,2009,9(02):e92. |
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