Enhancing upconversion of Nd3+ through Yb3+-mediated energy cycling towards temperature sensing

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

26 Scopus Citations
View graph of relations

Author(s)

  • Songbin Liu
  • Peng Zhang
  • Junshan He
  • Qinyuan Zhang
  • Bo Zhou

Detail(s)

Original languageEnglish
Pages (from-to)1506-1511
Journal / PublicationJournal of Rare Earths
Volume39
Issue number12
Online published7 Jul 2021
Publication statusPublished - Dec 2021

Abstract

Photon upconversion of lanthanides has been a powerful means to convert low-energy photons into high-energy ones. However, in contrast to the mostly investigated lanthanide ions, it has remained a challenge for the efficient upconversion of Nd3+ due to the deleterious concentration quenching effect. Here we report an efficient strategy to enhance the upconversion of Nd3+ through the Yb3+-mediated energy cycling in a core-shell-shell nanostructure. Both Nd3+ and Yb3+ are confined in the interlayer, and the presence of Yb3+ in the Nd-sublattice provides a more matched energy for the upconversion transitions occurring at the intermediate state of Nd3+ towards much better population at its emissive levels. Moreover, this design also minimizes the possible cross-relaxation processes at both intermediate level and the emissive levels of Nd3+ which are the primary factors limiting the upconversion performance for the Nd3+-doped materials. Such energy cycling-enhanced upconversion shows promise in temperature sensing.

Research Area(s)

  • Core-shell nanostructure, Energy cycling, Nd3+, Rare earths, Temperature sensing, Upconversion

Citation Format(s)

Enhancing upconversion of Nd3+ through Yb3+-mediated energy cycling towards temperature sensing. / Song, Nan; Liu, Songbin; Zhang, Peng et al.
In: Journal of Rare Earths, Vol. 39, No. 12, 12.2021, p. 1506-1511.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review