Differentiation of photon generation depended on electrospun configuration in Eu3+/Tb3+ doped polyacrylonitrile nanofibers

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Z.M. Yu
  • L.F. Shen
  • D.S. Li
  • J. Guo
  • H. Lin

Detail(s)

Original languageEnglish
Pages (from-to)1040-1050
Journal / PublicationJournal of Alloys and Compounds
Volume786
Early online date4 Feb 2019
Publication statusPublished - 25 May 2019

Abstract

Tb(acac)3 (TAH) and Eu(TTA)3 Phen (ETP) doped polyacrylonitriles (PAN) have been electrospun into heterogeneous hybrid TAH/ETP/PAN and core-shell structured [(TAH/PAN)core + (ETP/PAN)shell] wire-shaped flexible nanofibers with diameter of ∼350 nm. Differential photon releasing behaviors reveal the double-color-emitting potential of Tb3+/Eu3+ combination systems and verify the effectiveness of coaxial configuration in avoiding the cross-relaxation between different rare earth ions. Luminous fluxes of the hybrid and the coaxial systems exceed 283.5 and 326.3 μlm under the excitation of 308 nm UVB-LED pump source, respectively. By adopting coaxial electrospun configuration, the color coordinates are tuned from (0.561, 0.332) in TAH/ETP/PAN to (0.435, 0.366) in [(TAH/PAN)core + (ETP/PAN)shell] fibers, which demonstrates that the core-shell structure is promising to extend the dimension of color tuning. Nanofibrosis and electrospun configurations furnish a desired approach to develop multifunctional one-dimensional nanomaterials for color displays and optoelectronic sensors.

Research Area(s)

  • Color tunability, Electrospun configuration, Eu3+/Tb3+ complexes, Polyacrylonitrile

Citation Format(s)

Differentiation of photon generation depended on electrospun configuration in Eu3+/Tb3+ doped polyacrylonitrile nanofibers. / Yu, Z.M.; Shen, L.F.; Li, D.S.; Pun, E.Y.B.; Guo, J.; Lin, H.

In: Journal of Alloys and Compounds, Vol. 786, 25.05.2019, p. 1040-1050.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review