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掺Ce^(3+)的碱土氟化物的紫外发光特性研究 被引量:7

Study on Ultra-Violet Luminescent Properties of Alkaline Earth Fluoride Phosphors Doped with Rare Earth Ion Ce^(3+)
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摘要 研究了掺杂稀土离子Ce3+的碱土氟化物发光体LiXAlF6:Ce3+(X=Ca2+,Sr2+或Ba2+),XBaAlF6:Ce3+(X=Li+,Na+或K+)及LiBaXF6:Ce3+(X=Al3+,Ga3+或In3+)的紫外发光特性。实验发现,在LiXAlF6:Ce3+中,随着X元素原子序数的增大,Ce3+的发光峰就向短波方向移动。首次研究了在XBaAlF6:Ce3+与LiBaXF6:Ce3+中的X元素的一价与三价离子对Ce3+发光的影响,发现这些一价与三价离子的原子序数的变化并不影响Ce3+的发射光谱的峰值,它们只在晶格中起着填隙和电荷补偿作用,这有利于Ce3+的发光,使发光强度有所增强。这些紫外发光可用来增强X射线影像板中所包含的储存辐射的发光体BaFBr:Eu2+的发光,使X射线影像板的显像增强。 Studing the uhra-violet (UV) luminescent properties of alkaline earth fluoride phosphors doped with rare earth ion Ce^3+. Our experiments discover that in LiXAlF6:Ce^3+(X=Ca^2+, Sr^2+ or Ba^2+), the emission peak of Ce^3+ shifts to the shorter wavelength with the increasing of the nuclear number of X elements. However the mono- valent- and tri-valent- cations of X elements in XBaAlF6:Ce^3+(X=Li^+, Na^+ or K^+) and LiBaXF6:Ce^3+(X=Al^3+, Ga^3+ or In^3+) do not obviously affect the emission peaks of Ce3+ and these cations of X elements only act as charge-compensation or blank-filling, which is of benefit to the luminescence of Ce^3+. These UV-lights can be used to increase the radiation storage phosphor BaFBr:Eu^2+ in an intensified X-ray imaging plate.
出处 《中国民航大学学报》 CAS 2009年第2期52-56,共5页 Journal of Civil Aviation University of China
基金 国家自然科学基金项目(60572177) 中国民航大学基金项目(05yk27s)
关键词 碱土氟化物发光体 稀土离子 掺杂 紫外发光 alkaline earth fluoride phosphors rare earth ion dope UV luminescence
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  • 1GEKTIN A,SHIRAN N,NEICHEVA S,et al.LiCaAlF6:Cecrystal:a new scintillator[J].Nuclear Instruments and Methods in Physics Research,2002,A 486:274-277.
  • 2SHIMAMURA K,BALDOCHI S,MUJILATU N,et al.Growth of Cedoped LiCaAlF6 and LiSrAlF6 single crystals by the czochralski technique under CF4 atmosphere[J].J Crystal Growth,2000,211:302-307.
  • 3JOUBERT M F,GUYOT Y,JACQUIER B,et al.Fluoride crystals and high lying excited states of rare earth ions[J].J Fluorine Chemistry,2001,107:235-240.
  • 4洪广言,李金贵,尤洪鹏.LiMAlF_6(M=Ca,Sr)基质中Ce^3+、Eu^3+、Tb^3+的光谱研究[J].发光学报,1998,19(2):117-122. 被引量:2
  • 5张吉林,洪广言.Ce^(3+)在钙钛矿型KMF_3(M=Mg、Ca、Sr、Ba)基质中的发光特性[J].中国稀土学报,1996,14(4):360-362. 被引量:4
  • 6张丽平,熊光楠,郑震,等.Simulating the intensifying effect of phosphors on imaging plate with UV photons[J].J Rare Earths,2004,22:143-145.

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