Ce^(3+)/Yb^(3+)/Er^(3+)共掺杂氟磷玻璃的上转换发光光谱  

Up-conversion Spectra of Ce^(3+)/Yb^(3+)/Er^(3+) Co-doped Fluoride Phosphate Glass

作　　者：王云志[1] 史振起 毕芳[1] 吕景文[1] 

机构地区：[1]长春理工大学材料与工程学院,吉林长春130022 [2]河北太行机械有限公司,河北石家庄050000

出　　处：《发光学报》2010年第3期321-325,共5页Chinese Journal of Luminescence

摘　　要：研究了Yb3+/Er3+共掺杂和Ce3+/Yb3+/Er3+三掺杂及其随着Al(PO3)3含量改变的氟磷玻璃的光谱性能。从能量匹配及能级结构角度出发分析了Ce3+和Al(PO3)3对其光谱性能的影响。结果表明:在Yb3+/Er3+比为4:1不变而同步增加其含量时,其上转换发光出现了由绿光到黄光再到红光的变化;随着玻璃中Ce3+的引入,产生了Er3+的4I11/2→4I13/2能级间无辐射弛豫速率增加现象,且上转换发光都有一定程度的减弱。随着Al(PO3)3含量的改变,其减弱程度也发生相应的改变。同时,通过对其上转换机理的分析得出了红、绿、蓝发光的光子过程。Optical properties of Yb3＋ /Er3＋ co-doped,Ce3＋ /Yb3＋ /Er3＋ co-doped fluoride phosphate glass and that of Ce3 ＋ /Yb3 ＋ /Er3 ＋ co-doped fluoride phosphate glass with different content of Al（PO3） 3 were studied.Based on up-conversion mechanism,energy matching and level,the effect of content of Ce3 ＋ and Al（PO3） 3 on the optical properties have been analyzed.The results show that the light changes from green to yellow then to red with the content of Yb3 ＋ /Er3 ＋ increasing and keeping the ratio of Yb3 ＋ /Er3 ＋ as 4：1.And with the introduction of Ce3 ＋ into the glass,non-radiative relaxation takes place from the 4I11/2 to 4I13/2 level of Er3 ＋,which weakens the up-conversion of light to some extent.Phonon energy of energy transfer process of Er3 ＋ and Ce3 ＋ change with changing content of Al（PO） 3,and the degree of extinction also changes correspondingly.At the same time,through the mechanism of their up-conversion,we get the photon conversion process of red,green and blue light.

关 键 词：氟磷酸盐 上转换 稀土离子 

分 类 号：O482.31[理学—固体物理]