VUV spectroscopic properties of rare-earth (RE³⁺ = Sm³⁺, Eu³⁺, Tb³⁺, Dy³⁺) -activated layered borate Ba₆Gd₉B₇₉O₁₃₈

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• 作者：Zhi-Jun Zhang ^{zhangzhijun@shu.edu.cn} ; Shao-Lin Zhang ; Wei-Bin Zhang ; Woochul Yang ; ^{wyang@dongguk.edu}
• 关键词：VUV ; Luminescence ; Rare-earth ; Borate
• 刊名：Solid State Sciences
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：64
• 期：Complete
• 页码：69-75
• 全文大小：2544 K
• 卷排序：64

文摘

VUV spectroscopic properties of rare-earth ions in Ba6Gd9B79O138 have been investigated. The CT bands of O2--Sm3+ and O2--Eu3+ charge transfer bands were observed at 202 and 249 nm, respectively. The f-d spin-allowed (208 nm) and spin-forbidden (230 nm) transitions of Tb3+ were observed. Energy transfer from the host to rare-earth activators has been demonstrated.