Influence of Plasmonic Effect on the Upconversion Emission Characteristics of NaYF4 Hexagonal Microrods

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

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Author(s)

  • Ting Wang
  • Chun Kit Siu
  • Huan Yu
  • Yunfeng Wang
  • Siqi Li
  • Wei Lu
  • Jianhua Hao
  • Hong Liu
  • Jing Hua Teng
  • Xuhui Xu
  • Siu Fung Yu

Detail(s)

Original languageEnglish
Pages (from-to)8200-8204
Journal / PublicationInorganic Chemistry
Volume57
Issue number14
Online published25 Jun 2018
Publication statusPublished - 16 Jul 2018
Externally publishedYes

Abstract

The influence of plasmonic effect on the upconversion emission characteristics of Yb3+ -Er3+ -Tm3+ tridoped β-NaYF4 hexagonal microrods is studied. Upconversion spontaneous emission can be improved by 10 times if the microrod is deposited on an Ag-coated substrate. The enhancement is also dependent on the emission wavelength and the polarization of the excitation source. Furthermore, upconversion lasing is supported by the geometry of the microrods via the formation of whispering gallery modes. The corresponding excitation threshold can also be reduced by 50% through the influence of plasmonic effect, the coupling between the whispering gallery modes and the surface plasmonic resonance modes.

Citation Format(s)

Influence of Plasmonic Effect on the Upconversion Emission Characteristics of NaYF4 Hexagonal Microrods. / Wang, Ting; Siu, Chun Kit; Yu, Huan et al.
In: Inorganic Chemistry, Vol. 57, No. 14, 16.07.2018, p. 8200-8204.

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