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Probing Energy Migration through Precise Control of Interfacial Energy Transfer in Nanostructure
Author(s) -
Zhou Bo,
Huang Jinshu,
Yan Long,
Liu Xuelong,
Song Nan,
Tao Lili,
Zhang Qinyuan
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201806308
Subject(s) - materials science , nanostructure , lanthanide , photon upconversion , shell (structure) , luminescence , excited state , nanotechnology , energy transfer , energy (signal processing) , core (optical fiber) , chemical physics , optoelectronics , atomic physics , ion , composite material , statistics , physics , mathematics , quantum mechanics
A novel mechanistic strategy for probing the energy migration through constructing the interfacial energy transfer (IET) in a core–shell–shell nanostructure is reported. In this design, the trilayer nanostructure is composed of a sensitizing core, a migratory interlayer, and a detective shell layer that interact with each other only by IET and the latter two shell layers are nonresponsive to the incident irradiation. This model is well applied in investigating the energy migration over the Tb, Gd, and Yb sublattices, and the results show that the Gd sublattice holds the best energy migratory performance. Moreover, the finding of energy migration over the Yb sublattice enables the 808 nm excited long‐lived upconversion of Tb 3+ and Eu 3+ , which exhibits unique time‐gating performance for information security. The results provide a facile and powerful nanosized model for an in‐depth understanding of the fundamentals involving lanthanide interactions, which will further help excite new chances for the frontier applications of lanthanide‐based luminescent materials.