Probing Energy Migration through Precise Control of Interfacial Energy Transfer in Nanostructure. Issue 6 (13th December 2018)

• Record Type: Journal Article
• Authors: Zhou, Bo; Huang, Jinshu; Yan, Long; Liu, Xuelong; Song, Nan; Tao, Lili; Zhang, Qinyuan
• Is Part Of: Advanced materials. Volume 31:Issue 6(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-12-13
• Subjects: core–shell–shell nanostructure -- energy migration -- interfacial energy transfer -- mechanistic study; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201806308
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: 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. Abstract : Probing energy migration among a set of lanthanides is realized by constructing an interfacial energy‐transfer‐mediated trilayer nanostructure. The results provide a facile and powerful nanosized model for an in‐depth understanding of the fundamentals involving energy migration of lanthanides, which will also excite new chances for developing new class of upconversion materials toward frontier applications.