Revisit of energy transfer upconversion luminescence dynamicsthe role of energy migration

被引：5

作者：

Tu LangPing ^{[1
,2
]}

Zuo Jing ^{[1
]}

Zhang Hong ^{[1
,2
]}

机构：

[1] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1098 XH Amsterdam, Netherlands

[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Jilin, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2018年 / 61卷 / 09期

关键词：

rare earth; upconversion; energy migration; luminescence dynamics; LANTHANIDE-DOPED NANOCRYSTALS; NANOPARTICLES; CORE; MECHANISM; EXCITATION; RESONANCE;

D O I：

10.1007/s11431-018-9311-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Upconversion is a process in which one photon is emitted upon absorption of several photons of lower energy. Potential applications include super resolution spectroscopy, high density data storage, anti-counterfeiting and biological imaging and photo-induced therapy. Upconversion luminescence dynamics has long been believed to be determined solely by the emitting ions and their interactions with neighboring sensitizing ions. Recent research shows that this does not hold for nanostructures. The luminescence time behavior in the nanomaterials is confirmed seriously affected by the migration process of the excitation energy. This new fundamental insight is significant for the design of functional upconversion nanostructures. In this paper we review relevant theoretical and spectroscopic results and demonstrate how to tune the rise and decay profile of upconversion luminescence based on energy migration path modulation.

引用

页码：1301 / 1308

页数：8

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