Precisely Tailoring Upconversion Dynamics via Energy Migration in Core-Shell Nanostructures

doi:10.1002/anie.201711606

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	Precisely Tailoring Upconversion Dynamics via Energy Migration in Core-Shell Nanostructures
	Zuo, J.; Sun, D. P.; Tu, L. P.; Wu, Y. N.; Cao, Y. H.; Xue, B.; Zhang, Y. L.; Chang, Y. L.; Liu, X. M.; Kong, X. G.
刊名	Angewandte Chemie-International Edition
	2018
卷号	57 期号:12 页码:3054-3058
关键词	core-shell nanostructures energy migration lanthanides luminescence dynamics Monte Carlo simulation upconversion nanocrystals excitation-energy nanoparticles nanocrystals luminescence surface Chemistry
ISSN号	1433-7851
DOI	10.1002/anie.201711606
英文摘要	Upconversion emission dynamics have long been believed to be determined by the activator and its interaction with neighboring sensitizers. Herein this assumption is, however, shown to be invalid for nanostructures. We demonstrate that excitation energy migration greatly affects upconversion emission dynamics. "Dopant ions Q spatial separation" nanostructures are designed as model systems and the intimate link between the random nature of energy migration and upconversion emission time behavior is unraveled by theoretical modelling and confirmed spectroscopically. Based on this new fundamental insight, we have successfully realized fine control of upconversion emission time behavior (either rise or decay process) by tuning the energy migration paths in various specifically designed nanostructures. This result is significant for applications of this type of materials in super resolution spectroscopy, high-density data storage, anti-counterfeiting, and biological imaging.
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/60771]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Zuo, J.,Sun, D. P.,Tu, L. P.,et al. Precisely Tailoring Upconversion Dynamics via Energy Migration in Core-Shell Nanostructures[J]. Angewandte Chemie-International Edition,2018,57(12):3054-3058.
APA	Zuo, J..,Sun, D. P..,Tu, L. P..,Wu, Y. N..,Cao, Y. H..,...&Zhang, H..(2018).Precisely Tailoring Upconversion Dynamics via Energy Migration in Core-Shell Nanostructures.Angewandte Chemie-International Edition,57(12),3054-3058.
MLA	Zuo, J.,et al."Precisely Tailoring Upconversion Dynamics via Energy Migration in Core-Shell Nanostructures".Angewandte Chemie-International Edition 57.12(2018):3054-3058.