The process to prepare pure phase of hexagonal Y2O2S was investigated.Effect of mixed flux of Na2CO3 and S amounts was studied.The phase composition and morphology were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The results showed that the single phase of Y2O2S with smooth morphology could not be obtained as the molar ratio of Y2O3,Na2CO3 and S was in the range of 1∶(0.5-1)∶(2-3) until the molar ratio was increased to 1∶1.5∶4.Different Er3+ concentration doped Y2O2S∶Er powders were prepared with molar ratio of the raw materials 1∶1.5∶4.The quenching concentration of Er3+ in Y2O2S was more than 2 mol.%,which was due to the interaction of electric quadrupoles between Er3+ ions.
参考文献
[1] | Pires A M;Serra O A;Davolos M R .Yttrium oxysulfides nanosized spherical particles doped with Yb and Er or Yb and Tm:efficient materials for up-converting phosphor technology field[J].Journal of Alloys and Compounds,2004,374(1-2):181. |
[2] | Qilin Dai;Hongwei Song;Meiyuan Wang .Size and Concentration Effects on the Photoluminescence of La2O2S:Eu~(3+) Nanocrystals[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(49):19399-19404. |
[3] | Guo C F;Luan L;Chen C H;Huang D X Su Q .Preparation of Y2O2S:Eu3+ phosphors by a novel decomposition method[J].Materials Letters,2008,62(4-5):600. |
[4] | Mikami M.;Oshiyama A. .First-principles study of yttrium oxysulfide: bulk and its defects[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2000(0):1206-1209. |
[5] | Xi-xian Luo;Wang-he Cao .Ethanol-assistant solution combustion method to prepare La_2O_2S:Yb,Pr nanometer phosphor[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):529-534. |
[6] | Mikami M.;Oshiyama A. .First-principles band-structure calculation of yttrium oxysulfide[J].Physical Review.B.Condensed Matter,1998(15):8939-8944. |
[7] | Mikami M.;Oshiyama A. .First-principles study of intrinsic defects in yttrium oxysulfide[J].Physical Review.B.Condensed Matter,1999(3):1707-1715. |
[8] | Liu, YL;Kuang, JY .Intense visible luminescence from Nd3+-doped yttrium oxysulfide[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2010(3):351-354. |
[9] | Zuoling Fu;Yang Geng;Hongwei Chen;Shihong Zhou;Hyun Kyoung Yang;Jung Hyun Jeong .Combustion synthesis and luminescent properties of the Eu~(3+)-doped yttrium oxysulfide nanocrystalline[J].Optical materials,2008(1):58-62. |
[10] | Thirumalai J;Chandramohan R;Sekar M;Rajachandrasekar R .Eu3+ doped yttrium oxysulfide quantum structures-structural, optical and electronic properties[J].Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology,2008(3):455-463. |
[11] | Peng H S;Huang S H;You F T;Chang J J Lu S Z Cao L .Preparation and surface effect analysis of trivalent europiumdoped nanocrystalline LaOS[J].Journal of Physical Chemistry B: Materials, Surfaces, Interfaces & Biophysical,2005,109(12):5774. |
[12] | Chatterjee S.;Shanker V.;Chander H. .Thermoluminescence of Tb doped Gd2O2S phosphor[J].Materials Chemistry and Physics,2003(3):719-724. |
[13] | da Silva AA;Cebim MA;Davolos MR .Excitation mechanisms and effects of dopant concentration in Gd2O2S : Tb3+ phosphor[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2008(7):1165-1168. |
[14] | Tian Y;Cao W H;Luo X X;Fu Y .Preparation and luminescence properties of Gd2O2S:Tb3+ X-ray nano-phosphors using the compex precipitation method[J].Journal of Alloys and Compounds,2007,433(1-2):313. |
[15] | Hampl J;Hall M;Mufti N A;Yao Y M MacQueen D B Wright W H Cooper D E .Upconverting phosphor reporters in immunochrornatographic assays[J].Analytical Biochemistry,2001,288(02):176. |
[16] | Up-conversion luminescence properties of Y_2O_2S:Yb~(3+),Er~(3+) nanophosphors[J].Optical materials,2009(12):1787. |
[17] | Luo X X;Cao W H .Upconversion luminescence of holmium and ytterbium co-doped yttrium oxysulfide phosphor[J].Materials Letters,2007,61(17):3696. |
[18] | Takayuki Hirai;Takuya Orikoshi .Preparation of Gd_2O_3:Yb,Er and Gd_2O_2S:Yb,Er infrared-to-visible conversion phosphor ultrafine particles using an emulsion liquid membrane system[J].Journal of Colloid and Interface Science,2004(1):103-108. |
[19] | Takayuki Hirai;Takuya Orikoshi .Preparation of yttrium oxysulfide phosphor nanoparticles with infrared-to-green and -blue upconversion emission using an emulsion liquid membrane system[J].Journal of Colloid and Interface Science,2004(2):470-477. |
[20] | Lei BF;Liu YL;Tang GB;Ye ZR;Shi CS .Spectra and long-lasting properties of Sm3+-doped yttrium oxysulfide phosphor[J].Materials Chemistry and Physics,2004(1):227-232. |
[21] | Zbao J J;Guo C X;Guo R W;Hu J T .Red lurninescence of Lu2O2S:Ce and Y2O2S:Ce at room temperature[J].Journal of Alloys and Compounds,2007,436(1-2):174. |
[22] | Zhang P Y;Hong Z L;Shen H X;Xu X Z Fan X P .Luminescence characterization of Mg doped Y2O2S:Ti long afterglow phosphor[J].Journal of Rare Earths,2006,24(z1):115. |
[23] | Kang CC;Liu RS .The effect of terbium concentration on the luminescent properties of yttrium oxysulfide phosphor for FED application[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(0):574-576. |
[24] | Yuan Shuanglong;Yang Yunxia;Fang Bin;Chen Guorong .Effects of doping ions on afterglow properties of Y_2O_2S:Eu phosphors[J].Optical materials,2007(4):535-538. |
[25] | Wang XX.;Zhang ZT.;Tang ZL.;Lin YH. .Characterization and properties of a red and orange Y2O2S-based long afterglow phosphor[J].Materials Chemistry and Physics,2003(1):1-5. |
[26] | A. N. Georgobiani;A. N. Gruzintsev;C. Barthou;P. Benalloul .Infrared Luminescence of Y_2O_2S:Er~(3+) and Y_2O_3:Er~(3+)[J].Inorganic Materials,2004(8):840-844. |
[27] | Buddhudu S;Bryant F J .Optical transitions of Er3+:La2O2S and Er3+:Y2O2S[J].Journal of the Less-Common Metals,1989,147(02):213. |
[28] | Dexter D L .Theory of concentration quenching in inorganic phosphors[J].Journal of Chemical Physics,1954,22(06):1063. |
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