Upconversion properties and dynamics study in Tm3+ and Yb 3+ codoped CaSc2O4 oxide material

	Upconversion properties and dynamics study in Tm3+ and Yb 3+ codoped CaSc2O4 oxide material
	Li J.; Zhang J.; Hao Z.; Zhang X.; Zhao J.; Luo Y.
	2013
发表期刊	Journal of Applied Physics
ISSN	ISBN/00218979
期号	113
摘要	The upconversion properties of Tm3+ and Yb3+ codoped CaSc2O4 phosphor excited at 980 nm are reported. The blue emission of Tm3+:1G4 &rarr 3H 6, red emission of Tm3+:1G4 &rarr 3F4, near-infrared emissions of Tm3+: 3H4 &rarr 3H6 (800 nm) and 3F4 &rarr 3H6 (1600 nm) are observed when excited Yb3+:2F5/2 level. The spectral properties of Yb3+:2F5/2 and Tm 3+:3F4, 3H4, 1G4 levels are described in detail as a function of Yb3+ and Tm3+ concentrations. By the trends of intensity ratios of Tm3+:3F4 to Yb3+: 2F5/2 and Tm3+:1G4 to 3H4 with the doped concentrations, upconversion dynamics is analyzed in Tm3+ and Yb3+ codoped CaSc 2O4 material. The concentration dependent lifetimes of Yb3+:2F5/2 and Tm3+: 1G4, 3H4 levels measured prove the existence of the efficient Yb3+ &rarr Tm3+ energy transfer and followed Tm3+ &rarr Yb3+ back-energy transfer processes, respectively. The energy transfer efficiency is up to 70% before concentration quenching occurrence. The back-energy transfer process is evidenced by the presence of the Yb3+:2F5/2 &rarr 2F7/2 in the emission spectrum excited Tm 3+:1G4 level at 466 nm. The detailed spectroscopic study conduces to understand the upconversion dynamics process in Tm3+ and Yb3+ codoped excellent CaSc2O 4 oxide material. 2013 AIP Publishing LLC.
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/40925
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li J.,Zhang J.,Hao Z.,et al. Upconversion properties and dynamics study in Tm3+ and Yb 3+ codoped CaSc2O4 oxide material[J]. Journal of Applied Physics,2013(113).
APA	Li J.,Zhang J.,Hao Z.,Zhang X.,Zhao J.,&Luo Y..(2013).Upconversion properties and dynamics study in Tm3+ and Yb 3+ codoped CaSc2O4 oxide material.Journal of Applied Physics(113).
MLA	Li J.,et al."Upconversion properties and dynamics study in Tm3+ and Yb 3+ codoped CaSc2O4 oxide material".Journal of Applied Physics .113(2013).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
1.4810898.pdf（1488KB）			开放获取	CC BY-NC-ND	浏览下载