采用低温燃烧法制备出Li+,Er3+共掺杂Gd203纳米粉体,将粉体压片成型后在1500 ℃真空条件下烧结10 h成功制备出Li+,Er3+共掺杂Gd2 O3半透明陶瓷.对粉体和半透明陶瓷样品的晶体结构、形貌、显微结构和上转换发光特性等用XRD,TEM,SEM,FL等手段进行了表征和研究.结果表明:Li+和Er3+均匀地溶解于Gd2O3晶格之中.粉体颗粒近似球形,粒径约20～ 30 nm.烧结后半透明陶瓷致密度高,未见气孔存在,透光率高;在980 nm LD激发下有两个峰值波长分别为561 nm(绿光)和658 nm(红光)上转换发光带,分别对应4S3/2/2H11/2→4I15/2和4F9/2→4I15/2跃迁;Li+的掺杂抑制了Gd2 O3由立方到单斜的相变,且使陶瓷样品中Er3+的上转换发光强度显著增强,红绿光之比大大提高.
参考文献
| [1] | Downing E;Hesselink L;Ralston J;Macfarlane R .A three-color,solid-state,three-dimensional display[J].SCIENCE,1996,273:1185. |
| [2] | Scheps R .Upconversion laser processes[J].Progress in Quantum Electronics,1996,20:271. |
| [3] | 陈晓波;张光寅;李美仙;冯衍 侯延冰 郝昭 宋峰 王玉堂 付便翔 李明 胡仁元 孟广政 孙寅官 宋增福 .三维立体显示--频率上转换研究的新进展[J].光谱学与光谱分析,1998,18:257. |
| [4] | Hampl J;Hall M;Mufti N A;Yao Y M MacQueen D B Wright W H Cooper D E .Upconverting phosphor reporters in immunochromatographic assays[J].Analytical Biochemistry,2001,288:176. |
| [5] | Zhang J;Wang SW;An LQ;Liu M;Chen LD .Infrared to visible upconversion luminescence in Er3+: Y2O3 transparent ceramics[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(0):8-10. |
| [6] | Dejneka M J .Transparent oxyfluoride glass ceramics[J].MRS Bulletin,1998,23(11):57. |
| [7] | 陈晓波,张光寅,N.Sawanobori,马衍,李美仙,毕诗章,聂玉昕,孙寅官.TmYb共掺氟氧化物玻璃的间接上转换敏化发光的研究[J].物理学报,1999(05):948-954. |
| [8] | Guo H;Dong N;Yin M;Zhang W P Lou L R Xia S D .Visible upconversion in rare eEarth ion-doped Gd2O3 nanocrystals[J].Journal of Physical Chemistry B,2004,108:19205. |
| [9] | Lei YQ;Song HW;Yang LM;Yu LX;Liu ZX;Pan GH;Bai X;Fan LB .Upconversion luminescence, intensity saturation effect, and thermal effect in Gd2O3 : Er-3,Yb3+ nanowires[J].The Journal of Chemical Physics,2005(17):4710-1-4710-5-0. |
| [10] | Zhou YH.;Lin J.;Wang SB. .Energy transfer and upconversion luminescence properties of Y2O3 : Sm and Gd2O3 : Sm phosphors[J].International Journal of Quantum Chemistry,2003(1/2):391-395. |
| [11] | Multifunctional Er~(3+)-yb~(3+) Codoped Gd_2o_3 Nanocrystalline Phosphor Synthesized Through Optimized Combustion Route[J].Applied physics, B. Lasers and optics,2009(1):p.165. |
| [12] | Gan Tian;Zhanjun Gu;Xiaoxiao Liu .Facile Fabrication of Rare-Earth-Doped Gd2O3 Hollow Spheres with Upconversion Luminescence, Magnetic Resonance, and Drug Delivery Properties[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2011(48):23790-23796. |
| [13] | D. Dosev;I. M. Kennedy;M. Godlewski;I. Gryczynski;K. Tomsia;E. M. Goldys .Fluorescence upconversion in Sm-doped Gd_2O_3[J].Applied physics letters,2006(1):011906.1-011906.3. |
| [14] | Zhou Z;Komori T;Ayukawa T;Yukawa H,Morinaga M,Koizumi A,Takeda Y .Li-and Er-codoped with ZnO enhanced 1.54 μm photoemission[J].Applied Physics Letters,2005,87(9):091109. |
| [15] | Yunfeng Bai;Yuxiao Wang;Kun Yang;Xueru Zhang;Yinglin Song;C.H. Wang .Enhanced upconverted photoluminescence in Er~(3+) and Yb~(3+) codoped ZnO nanocrystals with and without Li~(+) ions[J].Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter,2008(21):5448-5452. |
| [16] | Yi SS;Bae JS;Moon BK;Jeong JH;Kim JH .Crystallinity of Li-doped Gd2O3 : Eu3+ thin-film phosphors grown on Si(100) substrate[J].Applied physics letters,2005(7):1921-1-1921-3-0. |
| [17] | 刘冰洁,顾牡,刘小林,张睿,肖莉红.Li+,Zn2+共掺杂对Gd2O3：Eu3+纳米粉结构和发光性能的影响[J].中国稀土学报,2007(02):162-166. |
| [18] | 马多多,刘行仁.Gd2O3：Eu纳米荧光体的晶体结构和相变[J].发光学报,1998(03):224-226. |
| [19] | Zhongsheng Chen;Tengfei Chen;Weiping Gong .Effect of Li~+ Ions Doping on Microstructure and Upconversion Emission of Y_2Ti_2O_7:Er~(3+)/Yb~(3+) Nanophosphors Synthesized Via a Sol-Gel Method[J].Journal of the American Ceramic Society,2013(6):1857-1862. |
| [20] | 马乌吉斯古楞,阿斯娜,德格吉呼.稀土离子掺杂Ba2GdF7纳米颗粒的合成及其上转换发光性质研究[J].中国稀土学报,2014(06):664-669. |
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