Gd_2SiO_5:Eu^(3+)的VUV-UV光谱特性  

The spectral characteristics of Gd_2SiO_5:Eu^(3+) in VUV-UV range

作　　者：陈永虎[1] 施朝淑[1] 魏亚光[1] 陶冶[2] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230029 [2]中国科学院高能物理研究所,北京100039

出　　处：《核技术》2002年第10期788-792,共5页Nuclear Techniques

基　　金：国家自然科学基金 (5 9732 0 4 0 );BSRF用户重点课题资助

摘　　要：本文介绍了利用同步辐射光源对Gd2 SiO5:Eu3+的VUV -UV光谱特性进行的研究。重点讨论了在低温 (10K )及室温下Gd2 SiO5:Eu3+中存在的各种能量传递过程 ,包括基质向Eu3+,Gd3+向Eu3+的传递以及两种不同格位Eu3+离子之间的能量传递。另一方面从探索新型量子剪裁材料的角度对比了 186nm和 2 76nm激发下的发射谱 ,指出Gd2Synchrotron radiation source was used to investigate the spectral characteristics of Gd 2SiO 5:Eu 3+ in VUV-UV range. The various energy transfers at room temperature and 10K, including from host or Gd 3+ ions to Eu 3+ ions and transfer between Eu 3+ ions at two different lattice sites, were discussed. In addition the emission spectra under 186nm and 276nm excitation were compared from the view of quantum cutting. The results indicate that Gd 2SiO 5:Eu 3+ is a kind of material with potential high efficiency quantum cutting.

关 键 词：VUV-UV 光谱特性 Gd2SiO5:Eu^3+ 能量传递 量子剪裁 硅酸钆 重闪烁体 铕(Ⅲ) 掺杂 

分 类 号：TL812[核科学技术—核技术及应用] O482.31[理学—固体物理]