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La3PO7：Eu^3＋纳米晶的制备和光谱性质
  • ISSN号：1000-7032
  • 期刊名称：《发光学报》
  • 时间：0
  • 分类：O482.31[理学—固体物理;理学—物理]
  • 作者机构：[1]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
  • 相关基金：国家自然科学基金（10874180,11174278,10774141,11174276,51172226）资助项目
作者： 吕少哲[1], 张家骅[1], 张继森[1], 鄂书林[1], 骆永石[1], 赵海峰[1]
关键词： La3PO7∶Eu3+, 色纯度, 纳米, 选择激发, LaP3O7 ： Eu^3＋, colorimetric purity , nanocrystal , laser selective excitation
中文摘要：

通过燃烧法合成了Eu^3＋掺杂的含氧磷酸镧（La3PO7：Eu^3＋）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Eu^3＋的^5D0→^7F2辐射跃迁，Eu^3＋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。

英文摘要：

La3PO7： Eu^3＋ nanocrystals were successfully prepared by combustion method. The struc- ture 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 av- erage size of the particles was about 80 nm. In La3POT： Eu^3＋ samples, the major emission peak is derived from the ^5 D0→^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 Eu^3 ＋ is lower and Eu^3＋ ions occupy at least two types of site in the La3PO7 nanocrystal.

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期刊信息
  • 《发光学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会发光分会 中国科学院长春光学精密机械与物理研究所
  • 主编：申德振
  • 地址：长春市东南湖大路3888号
  • 邮编：130033
  • 邮箱：fgxbt@126.com
  • 电话：0431-86176862
  • 国际标准刊号：ISSN：1000-7032
  • 国内统一刊号：ISSN：22-1116/O4
  • 邮发代号:12-312
  • 获奖情况:
  • 物理学类核心期刊,2000年获中国科学院优秀期刊二等奖,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:7320