Fluorene-containing tetraphenylethylene molecules as lasing materials

C. Orofino, C. Foucher, F. Farrell, N. J. Findlay, B. Breig, A. L. Kanibolotsky, B. Guilhabert, F. Vilela, N. Laurand, M. D. Dawson, P. J. Skabara

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A series of star-shaped oligofluorene molecules, each containing a TPE core, have been specifically designed and produced to show effective aggregation-induced emission (AIE). Each molecule differs either in the number of fluorene units within the arms (e.g., 1 or 4, compounds 4 and 5), or the terminal group positioned at the end of each arm (e.g., H, TMS, or TPA, compounds 4, 6, and 7). Although they are all poor emitters in solution phase they become efficient yellow-green luminogens in the condensed state. Their AIE properties were investigated in THF/H2O mixtures, with each molecule exhibiting a clear emission enhancement at specific water contents. An all-organic distributed feedback (DFB) laser was fabricated using compound 4 as the gain material and exhibited an average threshold energy fluence of 60 ± 6 μJ/cm2 and emission in the green region. Furthermore, piezofluorochromism studies on a thin film of this material displayed a linear dependence of the amplified spontaneous emission (ASE) peak position on applied pressure, indicating potential applications as lasing-based pressure sensors.

LanguageEnglish
Pages734-746
Number of pages13
JournalJournal of Polymer Science Part A: Polymer Chemistry
Volume55
Issue number4
Early online date21 Nov 2016
DOIs
Publication statusPublished - 15 Feb 2017

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Molecules
Organic lasers
Agglomeration
Thermoplastic elastomers
Distributed feedback lasers
Spontaneous emission
Pressure sensors
Water content
Stars
Thin films
fluorene

Keywords

  • aggregation induced emission
  • oligomers
  • photophysics
  • piezofluorochromism
  • Synthesis

Cite this

Orofino, C., Foucher, C., Farrell, F., Findlay, N. J., Breig, B., Kanibolotsky, A. L., ... Skabara, P. J. (2017). Fluorene-containing tetraphenylethylene molecules as lasing materials. Journal of Polymer Science Part A: Polymer Chemistry, 55(4), 734-746. https://doi.org/10.1002/pola.28421
Orofino, C. ; Foucher, C. ; Farrell, F. ; Findlay, N. J. ; Breig, B. ; Kanibolotsky, A. L. ; Guilhabert, B. ; Vilela, F. ; Laurand, N. ; Dawson, M. D. ; Skabara, P. J. / Fluorene-containing tetraphenylethylene molecules as lasing materials. In: Journal of Polymer Science Part A: Polymer Chemistry. 2017 ; Vol. 55, No. 4. pp. 734-746.
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Fluorene-containing tetraphenylethylene molecules as lasing materials. / Orofino, C.; Foucher, C.; Farrell, F.; Findlay, N. J.; Breig, B.; Kanibolotsky, A. L.; Guilhabert, B.; Vilela, F.; Laurand, N.; Dawson, M. D.; Skabara, P. J.

In: Journal of Polymer Science Part A: Polymer Chemistry, Vol. 55, No. 4, 15.02.2017, p. 734-746.

Research output: Contribution to journalArticle

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AU - Foucher, C.

AU - Farrell, F.

AU - Findlay, N. J.

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AU - Kanibolotsky, A. L.

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AU - Dawson, M. D.

AU - Skabara, P. J.

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