长波紫外激发下的三基色发光玻璃  

Tri-color luminescence glass under long-wavelength ultraviolet excitation

作　　者：刘自军[1] 杨旅云[1] 戴能利[1] 李进延[1] 

机构地区：[1]华中科技大学,武汉光电国家实验室,光电子科学与工程学院,武汉430074

出　　处：《物理学报》2011年第4期697-702,共6页Acta Physica Sinica

摘　　要：报道了一种新的可用长波紫外有效激发的三基色发光玻璃.这种三基色荧光玻璃样品是在相同硅硼酸盐基质中掺杂Ce3+/Mn2+,Ce3+/Tb3+以及Eu2+并采用熔融法制备出的.其中Mn2+,Tb3+,Eu2+作为激活离子,Ce3+作为敏化剂向激活离子提供能量.由于敏化剂的加入使这种三基色发光玻璃在长波紫外激发下获得了很强的荧光.同时文中讨论了基质中Al在增强荧光中的作用以及离子间的能量传递过程和离子价态的控制.In this paper we report on a new kind of tri-color luminescence glass which can be excited efficiently by longwavelength ultraviolet.These samples are prepared by melting silicon-borate raw material co-doped with Ce3＋/Mn2＋,Ce3＋/Tb3＋ and Eu2＋,respectively.Among these doped ions,Mn2＋,Tb3＋ and Eu2＋ are activators and Ce3＋ is sensibilizer.Because the sencibilzer can provide energy for activator so the intense tri-color luminescence can be obtained by long-wavelength ultraviolet excitation.At the same time,the role of Al in the fluorescence enhancement,the energy transfer process,and the control of the ions valence are discussed.

关 键 词：三基色发光 能量传递 长波紫外 发光玻璃 

分 类 号：O482.31[理学—固体物理]