Eu^(3+)、Tb^(3+)掺杂Zn_(4)B_(6)O_(13)光致发光材料的研究  

Study on photoluminescence materials of Eu^(3+)、Tb^(3+)-doped Zn_(4)B_(6)O_(13)

作　　者：董红军[1] 常树岚[1] 刘波[1] 

机构地区：[1]延边大学理学院化学系,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2005年第2期108-110,123,共4页Journal of Yanbian University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(20261006);吉林省科技厅基金资助项目(20040506-2)

摘　　要：采用高温固相扩散方法,获得了Eu3+、Tb3+单掺杂和Eu3+/Tb3+双掺杂于过渡金属Zn4B6O13基质中的系列荧光材料,并分别研究了它们的光谱行为,其中Eu3+位于610nm的强发射是来自5D0→7F2的跃迁;Tb3+位于541nm的强发射是来自5D4→7F5的跃迁;Eu3+/Tb3+双掺杂时主要发射峰位于625nm处.通过光谱分析证明了在基质中存在Tb3+→Eu3+的能量传递,且Tb3+是Eu3+的良好的敏化剂.本文同时还讨论了温度、稀土离子浓度对材料发光特性的影响.We got a serious of luminescent materials of Zn_4B_6O_(13) which was alone doped Eu^(3+) or Tb^(3+)and (co-doped) Eu^(3+) and Tb^(3+) by high temperature solid diffusion method. Spectral behaviors were researched in the paper, in which Eu^(3+) that located at 610?nm came from ()~5D_0→()~7F_2; Tb^(3+) that located at 541?nm came from ()~5D_4→()~7F_5; main emission position of Eu^(3+) and Tb^(3+) co-doped located at 625?nm. Results of spectral analysis indicated that energy transfer of Tb^(3+)→Eu^(3+) in the Zn_4B_6O_(13), and Tb^(3+) is sensitizer of Eu^(3+). (Effects) of temperature and density on spectral properties of luminescent materials were also discussed in the paper.

关 键 词：Zn_(4)B_(6)O_(13) :Eu^(3+)、Tb^(3+) 光致发光 光谱特性 

分 类 号：O644[理学—物理化学]