Intense Upconversion Luminescence of CaSc2O4:Ho3+/Yb3+ from Large Absorption Cross Section and Energy-Transfer Rate of Yb3+

	Intense Upconversion Luminescence of CaSc2O4:Ho3+/Yb3+ from Large Absorption Cross Section and Energy-Transfer Rate of Yb3+
	Li, J.; J. H. Zhang; Z. D. Hao; L. Chen; X. Zhang and Y. S. Luo
	2015
发表期刊	Chemphyschem
卷号	16 期号:7 页码:1366-1369
摘要	Concentration-optimized CaSc2O4:0.2%Ho3+/10%Yb3+ shows stronger upconversion luminescence (UCL) than a typical concentration-optimized upconverting phosphor Y2O3:0.2%Ho3+/10%Yb3+ upon excitation with a 980 nm laser diode pump. The F-5(4)+(S2I8)-S-5-I-5 green UCL around 545 nm and (F5I8)-F-5-I-5 red UCL around 660 nm of Ho3+ are enhanced by factors of 2.6 and 1.6, respectively. On analyzing the emission spectra and decay curves of Yb3+: (F5/2F7/2)-F-2-F-2 and Ho3+: (I6I8)-I-5-I-5, respectively, in the two hosts, we reveal that Yb3+ in CaSc2O4 exhibits a larger absorption cross section at 980 nm and subsequent larger Yb3+: (F5/2Ho3+)-F-2: I-5(6) energy-transfer coefficient (8.55x10(-17) cm(3)s(-1)) compared to that (4.63x10(-17) cm(3)s(-1)) in Y2O3, indicating that CaSc2O4:Ho3+/Yb3+ is an excellent oxide upconverting material for achieving intense UCL.
收录类别	SCI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55289
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.,J. H. Zhang,Z. D. Hao,et al. Intense Upconversion Luminescence of CaSc2O4:Ho3+/Yb3+ from Large Absorption Cross Section and Energy-Transfer Rate of Yb3+[J]. Chemphyschem,2015,16(7):1366-1369.
APA	Li, J.,J. H. Zhang,Z. D. Hao,L. Chen,&X. Zhang and Y. S. Luo.(2015).Intense Upconversion Luminescence of CaSc2O4:Ho3+/Yb3+ from Large Absorption Cross Section and Energy-Transfer Rate of Yb3+.Chemphyschem,16(7),1366-1369.
MLA	Li, J.,et al."Intense Upconversion Luminescence of CaSc2O4:Ho3+/Yb3+ from Large Absorption Cross Section and Energy-Transfer Rate of Yb3+".Chemphyschem 16.7(2015):1366-1369.

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