Intense upconversion luminescence and origin study in Tm3+/Yb3+ codoped calcium scandate

	Intense upconversion luminescence and origin study in Tm3+/Yb3+ codoped calcium scandate
	Li J.; Zhang J. H.; Hao Z. D.; Zhang X.; Zhao J. H.; Luo Y. S.
	2012
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	101 期号:12
摘要	Doping concentration optimized CaSc2O4:0.004Tm(3+)/0.1Yb(3+) shows stronger upconversion luminescence (UCL) than doping concentration also optimized typical oxide upconverting phosphor Y2O3:0.004Tm(3+)/0.1Yb(3+) upon 980 nm laser diode pump. The two-step up converted H-3(4) -> H-3(6) near infrared emission peaked around 800 nm and the three-step up converted (1)G(4) -> H-3(6) blue emission around 480 nm of Tm3+ is enhanced by a factor of 3.5 and 2.2, respectively. On analyzing the F-2(5/2) -> F-2(7/2) emission intensities and decay curves of Yb3+ in the two hosts, we reveal that Yb3+ in CaSc2O4 exhibits both a larger absorption cross section at 980nm and Yb3+ -> Tm3+ first step energy transfer coefficient (9.29 x 10(-17) cm(3) s(-1)) than that (2.87 x 10(-17) cm(3) s(-1)) in Y2O3, indicating that CaSc2O4 is an excellent host for achieving very intense UCL in Tm3+/Yb3+ codoped oxide upconverting materials. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4753802]
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34149
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. H.,Hao Z. D.,et al. Intense upconversion luminescence and origin study in Tm3+/Yb3+ codoped calcium scandate[J]. Applied Physics Letters,2012,101(12).
APA	Li J.,Zhang J. H.,Hao Z. D.,Zhang X.,Zhao J. H.,&Luo Y. S..(2012).Intense upconversion luminescence and origin study in Tm3+/Yb3+ codoped calcium scandate.Applied Physics Letters,101(12).
MLA	Li J.,et al."Intense upconversion luminescence and origin study in Tm3+/Yb3+ codoped calcium scandate".Applied Physics Letters 101.12(2012).