本文采用水热法,通过改变溶剂制备了不同形貌的氧化锌微米棱棒,并尝试对其进行稀土Er3+的掺杂.通过X射线衍射(XRD)、扫描电镜(SEM)、荧光光谱(PL)及分光光度计对所得产物的组成、形貌、发光性能和光学特性进行了研究.实验表明:醇-水的环境有利于得到形态均匀的微米棱棒,醇水比例为1∶2.5,激子辐射复合发光与缺陷发光的比例最高,缺陷浓度最低,晶体质量最高.随着Er3+掺杂浓度的增加吸收强度增强,Er3+掺杂浓度达4mol％时吸收度不再变化.
参考文献
| [1] | Xing YJ;Xi ZH;Zhang XD;Song JH;Wang RM;Xu J;Xue ZQ;Yu DP .Thermal evaporation synthesis of zinc oxide nanowires[J].Applied physics, A. Materials science & processing,2005(7):1527-1530. |
| [2] | Dai Y.;Zhang Y.;Li QK.;Nan CW. .Synthesis and optical properties of tetrapod-like zinc oxide nanorods[J].Chemical Physics Letters,2002(1/2):83-86. |
| [3] | Dai Y.;Zhang Y.;Bai YQ.;Wang ZL. .Bicrystalline zinc oxide nanowires[J].Chemical Physics Letters,2003(1/2):96-101. |
| [4] | Xiang Yang Kong;Zhong Lin Wang .Polar-surface dominated ZnO nanobelts and the electrostatic energy induced nanohelixes, nanosprings, and nanospirals[J].Applied physics letters,2004(6):975-977. |
| [5] | Liu J;Zhang Y;Qi J J et al.In-doped Zinc Oxide Dodecagonal Nanometer Thick Disks[J].Materials Letters,2006,60(21,22):2623-2626. |
| [6] | Chen J J;Deng H;Wei M.Hydrothermal Synthesis and Optical Properties of ZnO Single-crystal Hexagonal Micmtubes[J].Materials Science and Engineering B,2009(163):157-160. |
| [7] | Yan H Q;He R R;Johnson J et al.Dendritic Nanowire Ultraviolet Laser Array[J].American Chemical Society,2003,125:4728-4729. |
| [8] | Bachir S;Azuma K;Kossanyi J;Valat P;RonfardHaret JC .Photoluminescence of polycrystalline zinc oxide co-activated with trivalent rare earth ions and lithium. Insertion of rare-earth ions into zinc oxide[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,1997(1):35-49. |
| [9] | Anderson M P;Srolovitz D J;Grest G S .Computer Simulation of Grain Growth-I.Kinetics[J].Acta Metallurgica,1984,32(05):783. |
| [10] | Zhang J.;Sun LD.;Yin JL.;Su HL.;Liao CS.;Yan CH. .Control of ZnO morphology via a simple solution route[J].Chemistry of Materials,2002(10):4172-4177. |
| [11] | 范学运,王艳香,孙健,余熙.不同形貌的纳米氧化锌粉的光学性能研究[J].人工晶体学报,2009(04):994-997. |
| [12] | Cheng B;Samulski E T .Rapid,High Yield,Solution-mediated Transformation of Polycrystalline Selenium Powder into Single-crystal Nanowires[J].Chemical Communications,2004,8:986-987. |
| [13] | 张跃.一维氧化锌纳米材料[M].北京:科学出版社,2010 |
| [14] | Jean-Claude G. Bünzli,Svetlana V. Eliseeva.Lanthanide NIR luminescence for telecommunications, bioanalyses and solar energy conversion[J].稀土学报（英文版）,2010(06):824-842. |
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