广西师范大学学报(自然科学版) ›› 2011, Vol. 29 ›› Issue (2): 71-75.

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镨离子掺杂钨酸铅晶体荧光衰减动态研究

熊飞兵1,2, 杨峰3   

  1. 1.中国科学院福建物质结构研究所,福建福州350002;
    2.厦门理工学院数理系,福建厦门361024;
    3.广西师范大学化学化工学院,广西桂林541004
  • 收稿日期:2011-01-16 发布日期:2018-11-19
  • 通讯作者: 熊飞兵(1976—),男,江西丰城人,厦门理工学院讲师,博士。E-mail:fbxiong@yahoo.com.cn
  • 基金资助:
    国家自然科学基金资助项目(C050102);福建省自然科学基金资助项目(2010J05014);福建省教育厅A类科技项目(JA10254);厦门市科技计划指导性项目(3502720099006)

Fluorescence Decay Dynamics of Praseodymium Ions Doped in Lead Tungstate Crystal

XIONG Fei-bing1,2, YANG Feng3   

  1. 1.Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou Fujian 350002,China;
    2.Department of Physics and Mathematics,Xiamen University of Technology,Xiamen Fujian 361024,China;
    3.College of Chemistry and Chemical Engineering,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2011-01-16 Published:2018-11-19

摘要: 测量Pr3+:PbWO4晶体3P01D2能级在常温下的荧光衰减曲线,计算这2个能级的荧光寿命。结合改进的Judd-Ofelt理论得到3P01D2能级的辐射寿命,详细分析了这2个能级的荧光衰减动态情况。对于3P0能级,其荧光衰减主要是受到多声子无辐射跃迁的影响;对于1D2能级,其无辐射衰减的主要通道是共振交叉能量传递。采用Inokuti-Hirayama模型,详细分析1D2能级的荧光衰减过程,证实其荧光猝灭机制是电偶极-电偶极交叉能量传递。

关键词: 荧光衰减动态, 镨离子掺杂钨酸铅晶体, 无辐射跃迁

Abstract: Fluorescence decay curves of the 3P0 and1D2 manifolds in Pr3+ doped PbWO4 crystal were measured at room temperature and fluorescence lifetimes of both manifolds were estimated.Combining with the radiative lifetimes of those manifolds calculated on the basis ofthe modified J-O theory,the fluorescence decay dynamics of those manifolds were analyzed.The multi-phonon relaxation and the cross-relaxation energy transfer are the major nonradiative relaxation for the excited 3P0 and 1D2 manifolds,respectively.The Inokuti-Hirayama model was used to analyze the fluorescence decay curve of the 1D2 manifold and the cross-relaxation of dipole-dipole interaction was confirmed.

Key words: fluorescence decay dynamics, Pr3+-doped PbWO4, non-radiative relaxation

中图分类号: 

  • O433.1
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