| La3PO7:Eu3+纳米晶的制备和光谱性质 |
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| 引用本文： | 吕少哲,张家骅,张继森,鄂书林,骆永石,赵海峰.La3PO7:Eu3+纳米晶的制备和光谱性质[J].发光学报,2012,33(4):366-370. |
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| 作者姓名： | 吕少哲 张家骅 张继森 鄂书林 骆永石 赵海峰 |
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| 作者单位： | 发光学及应用国家重点实验室 中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033 |
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| 基金项目： | 国家自然科学基金(10874180,11174278,10774141,11174276,51172226)资助项目 |
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| 摘 要： | 通过燃烧法合成了Eu3+掺杂的含氧磷酸镧(La3PO7:Eu3+)纳米晶颗粒材料。样品的结构、形貌和粒径分别由X射线衍射、扫描电镜和透射电子显微镜得到。测量了样品的发射光谱、激光选择激发光谱和时间分辨光谱。实验结果表明:样品展示的较强红光发射来自于Eu3+ 的5D0→7F2辐射跃迁,Eu3+在La3PO7基质中至少占据两种不同的格位,且具有较低的格位对称性。
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| 关 键 词： | La3PO7：Eu3+ 色纯度 纳米 选择激发 |
| 收稿时间： | 2012/2/1 |
Synthesis and Spectroscopy Properties of La3PO7∶Eu3+ Nanomaterials |
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| LV Shao-zhe,ZHANG Jia-hua,ZHANG Ji-sen,E Shu-lin,LUO Yong-shi,ZHAO Hai-feng.Synthesis and Spectroscopy Properties of La3PO7∶Eu3+ Nanomaterials[J].Chinese Journal of Luminescence,2012,33(4):366-370. |
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| Authors: | LV Shao-zhe ZHANG Jia-hua ZHANG Ji-sen E Shu-lin LUO Yong-shi ZHAO Hai-feng |
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| Institution: | State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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| Abstract: | La3PO7∶Eu3+ nanocrystals were successfully prepared by combustion method.The structure and morphology of the prepared samples were obtained by X-ray diffraction,scanning of electron microscopy,high resolution transmission electron microscope,respectively.It was found that the average size of the particles was about 80 nm.In La3PO7∶Eu3+ samples,the major emission peak is derived from the 5D0→7F2 radiation transition and has a strong red emission and better color purity.The results of emission spectra,laser selective excitation spectra and time-resolved spectra indicate that symmetry of the local environment of Eu3+ is lower and Eu3+ ions occupy at least two types of site in the La3PO7 nanocrystal. |
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| Keywords: | LaP3O7∶Eu3+ colorimetric purity nanocrystal laser selective excitation |
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