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纳米SrHPO4∶RE(RE=Eu3+或Tb3+)磷光体的水热合成与光谱特性

Hydrothermal Synthesis and Optical Properties of SrHPO4∶RE(RE=Eu3+ or Tb3+) Nanophosphor

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【作者】 刘丽艳于佳音于湛田鹏张向东庞然李成宇

【Author】 LIU Li-yan;YU Jia-yin;YU Zhan;TIAN Peng;ZHANG Xiang-dong;PANG Ran;LI Cheng-yu;College of Chemistry and Life Science,Shenyang Normal University;College of Chemistry,Liaoning University;Key Laboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences;

【机构】 沈阳师范大学化学与生命科学学院辽宁大学化学院中国科学院长春应用化学研究所稀土化学与物理重点实验室

【摘要】 利用水热法合成了α-SrHPO4∶RE(RE=Eu3+,Tb3+)纳米磷光体,并研究了材料的形貌与光谱特性。α-SrHPO4纳米粒子为长度90~200 nm的棒状结构,直径为24~36 nm。Eu3+和Tb3+的掺杂均会降低α-SrHPO4的结晶度,并减小其长径比。α-Sr0.97HPO4∶0.03Eu3+在395 nm近紫外光的激发下,存在分别由5D0→7F1和5D0→7F12跃迁引起的590 nm和614 nm发射峰,最终发射橙红光。α-Sr0.97HPO4∶0.03Tb3+在217 nm近紫外光的激发下,存在由5D4→7F5跃迁引起的543 nm绿光发射。

【Abstract】 RE( RE= Eu3+or Tb3+) single-doped α-SrHPO4 phosphors with nano-scale grain were synthesized by the hydrothermal method in this work. The morphological and optical properties of these phosphors were also investigated. The sizes of the α-SrHPO4 nanorods are found in the range of 90 to 200 nm in length and 24 to 36 nm in width. The introduction of doping agent ions of Eu3 +or Tb3 +decreases both the quality of the crystallinity and the aspect ratio of the matrix. Under the excitation of near ultraviolet light( 395 nm),α-Sr 0. 97 HPO4 ∶ 0. 03Eu3 +exhibits two main emission peaks at 590 nm and 614 nm,corresponding to the5D 0 →7F J( J =1,2) transition of Eu3 +,respectively. Under the excitation of near ultraviolet light( 217 nm),α-Sr 0. 97 HPO4 ∶ 0. 03Tb3 +shows only one predominant emission peak at 543 nm originated from the5D 4 →7F 5 transition of Tb3 +. The CIE chromaticity coordinates for α-Sr 0. 97 HPO4 ∶ 0. 03Eu3 +phosphor are presented in the orange yellow region and that of α-Sr 0. 97 HPO4 ∶ 0. 03Tb3 +phosphor observed in the yellowish green region.

【关键词】 稀土α-SrHPO4水热合成发光
【Key words】 rare earthα-SrHPO4hydrothermal synthesisphotoluminescence
【基金】 辽宁省教育厅科学研究一般项目(L2012393);沈阳师范大学优秀人才支持计划项目;沈阳师范大学实验中心主任基金(SY200803)资助项目
  • 【文献出处】 发光学报 ,Chinese Journal of Luminescence , 编辑部邮箱 ,2014年05期
  • 【分类号】O482.31
  • 【被引频次】3
  • 【下载频次】97
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