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掺稀土元素Dy和Mn,P,Cu的MgSO4的热释发光光谱

张纯祥 唐 强 罗达玲

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掺稀土元素Dy和Mn,P,Cu的MgSO4的热释发光光谱

张纯祥, 唐 强, 罗达玲

THERMOLUMINESCENT SPECTRA OF MgSO4 DOPED WITH Dy AND Mn,P,Cu

ZHANG CHUN-XIANG, TANG QIANG, LUO DA-LING
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  • 实验测定了MgSO4:Dy,Mn和MgSO4:Dy,P以及MgSO4:Dy,P ,Cu等的热释光磷光体的三维发光谱.结果表明,掺入Dy的MgSO4磷光体的热释发 光谱线的波长与Dy3+离子的能级跃迁相关,Dy3+为热释光主要发光 中心.MgSO4中只掺入Mn时,温度在140℃和190℃附近呈现波长为660nm宽范围的 连续发光带,这是Mn形成的发光中心的
    Thermoluminescent 3D spectra of MgSO4 doped with Dy and Mn,P,Cu were measured.It is observed that the spectral wavelengths of MgSO4:Dy are related to the energy transitions of Dy3+ ions which play the role o f luminescent centers.The glow peaks at 140℃ and 190℃ about 660nm broad wavele ngth band were observed in MgSO4 doped with Mn.It means that Mn promo tes to form the new luminescent centers.When MgSO4 was co-doped with Dy and Mn,the main glow peak occurred at 380℃ in 480nm and 580nm wavelengths an d the glow peaks in 480nm and 580nm below 300℃ and all glow peaks in 660nm are strongly suppressed.The emission spectra of the MgSO4:Dy,Mn phosphor show the characteristic wavelengths of Dy3+ ions.Therefore,Dy3+ ions remain the major luminescent centers and Mn plays an important role f or energy transfer to the Dy ions in the MgSO4:Dy,Mn phosphor.Compari ng the 3D glow curves between MgSO4:Dy and MgSO4:Dy,P show s that the 260℃ glow peak of MgSO4:Dy shifts to 283℃ with high inte nsity while the temperature of glow peak at 360℃ remains unchanged.The relative intensities of glow peaks between 480nm band and 580nm band have been altered w hile the temperature of 283℃ glow peak is unchanged after MgSO4 was codoped with Dy and P,Cu.
    • 基金项目: 国家自然科学基金(批准号:19775071)和广东省自然科学基金(批准号:990215)资助的课题.
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  • PDF下载量:  660
  • 被引次数: 0
出版历程
  • 收稿日期:  2000-03-20
  • 修回日期:  2000-05-01
  • 刊出日期:  2000-05-05

掺稀土元素Dy和Mn,P,Cu的MgSO4的热释发光光谱

  • 1. 中山大学物理学系,广州 510275
    基金项目: 

    国家自然科学基金(批准号:19775071)和广东省自然科学基金(批准号:990215)资助的课题.

摘要: 实验测定了MgSO4:Dy,Mn和MgSO4:Dy,P以及MgSO4:Dy,P ,Cu等的热释光磷光体的三维发光谱.结果表明,掺入Dy的MgSO4磷光体的热释发 光谱线的波长与Dy3+离子的能级跃迁相关,Dy3+为热释光主要发光 中心.MgSO4中只掺入Mn时,温度在140℃和190℃附近呈现波长为660nm宽范围的 连续发光带,这是Mn形成的发光中心的

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