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

Z.M. Yu; L.F. Shen; D.S. Li; E.Y.B. Pun; J. Guo; H. Lin

doi:10.1016/j.jallcom.2019.02.012

Author(s)

Z.M. Yu
D.S. Li
J. Guo
H. Lin

Related Research Unit(s)

Detail(s)

Original language	English
Pages (from-to)	1040-1050
Journal / Publication	Journal of Alloys and Compounds
Volume	786
Online published	4 Feb 2019
Publication status	Published - 25 May 2019

Link(s)

DOI	DOI https://doi.org/10.1016/j.jallcom.2019.02.012 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85061343583&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(0fafd515-9569-421e-a908-52bac1ef19d9).html

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. © 2019 Elsevier B.V. All rights reserved.

Research Area(s)

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

Citation Format(s)

[ RIS ] [ BibTeX ]

Differentiation of photon generation depended on electrospun configuration in Eu³⁺/Tb³⁺ doped polyacrylonitrile nanofibers. / Yu, Z.M.; Shen, L.F.; Li, D.S. et al.
In: Journal of Alloys and Compounds, Vol. 786, 25.05.2019, p. 1040-1050.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Yu, ZM, Shen, LF, Li, DS, Pun, EYB, Guo, J & Lin, H 2019, 'Differentiation of photon generation depended on electrospun configuration in Eu³⁺/Tb³⁺ doped polyacrylonitrile nanofibers', Journal of Alloys and Compounds, vol. 786, pp. 1040-1050. https://doi.org/10.1016/j.jallcom.2019.02.012

Yu, Z. M., Shen, L. F., Li, D. S., Pun, E. Y. B., Guo, J., & Lin, H. (2019). Differentiation of photon generation depended on electrospun configuration in Eu³⁺/Tb³⁺ doped polyacrylonitrile nanofibers. Journal of Alloys and Compounds, 786, 1040-1050. https://doi.org/10.1016/j.jallcom.2019.02.012

Yu ZM, Shen LF, Li DS, Pun EYB, Guo J, Lin H. Differentiation of photon generation depended on electrospun configuration in Eu³⁺/Tb³⁺ doped polyacrylonitrile nanofibers. Journal of Alloys and Compounds. 2019 May 25;786:1040-1050. Epub 2019 Feb 4. doi: 10.1016/j.jallcom.2019.02.012

Yu, Z.M. ; Shen, L.F. ; Li, D.S. et al. / Differentiation of photon generation depended on electrospun configuration in Eu³⁺/Tb³⁺ doped polyacrylonitrile nanofibers. In: Journal of Alloys and Compounds. 2019 ; Vol. 786. pp. 1040-1050.