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(REO)3BO3(RE=La、Gd、Y)中Pr3+的光致发光

Photoluminescence of Pr3+ in (REO)3BO3(RE=La,Gd,Y)

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【作者】 刘利民李其华彭夷安朱小娟雷春华

【Author】 LIU Li Min LI Qi Hua PENG Yi An ZHU Xiao Juan LEI Chun Hua (Teaching and Research Section of Chemistry,Hunan Medical College,Changsha 410006,P.R.China )

【机构】 湖南医学高等专科学校普化教研室!长沙市咸嘉湖410006

【摘要】 研究了紫外光激发下,(REO)3BO3(RE= La、Gd、Y)基质中Pr3+ 的光谱性质;探讨了基质晶格、阳离子半径、Pr3+ - O2- 键的共价性等因素对光谱性质的影响;分析了Pr3+ 的发光强度随组成变化的规律性及Pr3+ 的3P1→3F2 跃迁发射的自身浓度猝灭机理。

【Abstract】 In this paper,the photoluminescence of Pr 3+ in (REO) 3BO 3(RE=La,Gd,Y) excited by UV light has been studied.The results obtained indicate the influence of the host lattice,radius of positive ion and the covalency of the Pr 3+ -O 2- bond on the spectral character. The dependence of the 1uminescent intensities on the concentration of Pr 3+ in (REO) 3BO 3(RE=La,Gd,Y) and investigated the mechanism of concentration selfquenching of Pr 3+ in (REO) 3BO 3(RE=La,Gd,Y) have been analyzed.

  • 【文献出处】 光谱实验室 ,CHINESE JOURNAL OF SPECTROSCOPY LABORATORY , 编辑部邮箱 ,2000年01期
  • 【分类号】O433.2
  • 【下载频次】53
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