采用固相反应法成功地将Eu元素掺入CeB6纳米晶中,并系统地研究了对其光吸收性能的影响规律。由XRD分析、扫描电镜和透射电镜能谱分析结果充分证明了Eu元素成功地掺入了CeB6晶格中。光吸收结果表明,随着Eu掺杂量的增加, CeB6吸收峰波长从938 nm增加至1718 nm,产生了“红移”现象。与此同时,透射光波长也从可见光区域的798 nm红移至近红外区域的1138 nm。本文揭示了通过Eu掺杂可使CeB6透射光波长和吸收峰波长连续可调。这一特性对于拓展CeB6的光学应用具有重要意义。
The Eu-doped CeB6 nanocrystalline was successfully synthesized by a solid-state reaction and their optical properties were investigated. The XRD and EDS analyses fully confirm that the Eu element has been successfully doped into the lattice of CeB6. The optical absorption results show that maximum absorption red-shifted from 938 nm to 1718 nm. Meanwhile, it is interestingly found that the maximum transmission also red-shifts from visible region of 798 nm to near-infrared region of 1138 nm, which is for the first time to be obtained tunable optical characteristic CeB6 by Eu doping. Thus, these interesting findings on CeB6 nanocrystalline can extend its optical application.
参考文献
| [1] | Zhou, Shen Lin;Zhang, Jiu Xing;Bao, Li Hong;Yu, Xiao Guang;Hu, Qiang Lin;Hu, Dong Qiang.Enhanced thermionic emission properties in textured two-phase LaB6-BaB6 system prepared by spark plasma sintering[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2014:130-134. |
| [2] | 张繁星;张忻;张久兴;梁超龙;黄颖凯.悬浮区域熔炼法制备Ce1-xPrxB6单晶体及其热发射性能研究[J].无机材料学报,2014(10):1073-1076. |
| [3] | 燃烧合成法制备NdB6超细粉体及反应机理[J].无机材料学报,2014(07):711-716. |
| [4] | J.K. Sonber;K. Sairam;T.S.R.Ch. Murthy.Synthesis, densification and oxidation study of lanthanum hexaboride[J].Journal of the European Ceramic Society,20145(5):1155-1160. |
| [5] | Han Zhang;Jie Tang;Qi Zhang;Gongpu Zhao;Guang Yang;Jian Zhang;Otto Zhou;Lu-Chang Qin.Field Emission of Electrons from Single LaB_6 Nanowires[J].Advanced Materials,20061(1):87-91. |
| [6] | Shenlin Zhou;Jiuxing Zhang;Danmin Liu;Zulun Lin;Qingzhen Huang;Lihong Bao;Ruguang Ma;Yongfeng Wei.Synthesis and properties of nanostructured dense LaB_6 cathodes by arc plasma and reactive spark plasma sintering[J].Acta materialia,201015(15):4978-4985. |
| [7] | Hiromitsu Takeda;Hiroko Kuno;Kenji Adachi.Solar Control Dispersions and Coatings With Rare-Earth Hexaboride Nanoparticles[J].Journal of the American Ceramic Society,20089(9):2897-2902. |
| [8] | Dilute LaB_(6) nanoparticles in polymer as optimized clear solar control glazing[J].Applied physics letters,200324(24):4346-4348. |
| [9] | Yuan, Y.;Zhang, L.;Hu, L.;Wang, W.;Min, G..Size effect of added LaB_6 particles on optical properties of LaB_6/Polymer composites[J].Journal of Solid State Chemistry,201112(12):3364-3367. |
| [10] | Lai,B.-H.;Chen,D.-H..LaB6 nanoparticles with carbon-doped silica coating for fluorescence imaging and near-IR photothermal therapy of cancer cells[J].Acta biomaterialia,20137(7):7556-7563. |
| [11] | Chao, Luomeng;Bao, Lihong;Shi, Junjie;Wei, Wei;Tegus, O.;Zhang, Zhidong.The effect of Sm-doping on optical properties of LaB6 nanoparticles[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2015:618-621. |
| [12] | Bao, Lihong;Chao, Lumen;Wei, Wei;Tegus, O..Tunable transmission light in nanocrystalline La1-x,EuxB6[J].Materials Letters,2015Jan.15(Jan.15):187-190. |
| [13] | Yohei Sato;Masami Terauchi;Masaki Mukai.High energy-resolution electron energy-loss spectroscopy study of the dielectric properties of bulk and nanoparticle LaB_6 in the near-infrared region[J].Ultramicroscopy,20118(8):1381-1387. |
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