Luminescent polymer films from simple processing of coronene and europium precursors in water

Miquel Planells, Efthymios Klampaftis, Martina Congiu, Ravichandran Shivanna, K. Venkata Rao, Oleg Chepelin, Anita C. Jones, Bryce S. Richards, Subi J. George, K. S. Narayan, Neil Robertson

Research output: Contribution to journalArticle

Abstract

We describe the preparation and optical characterisation of a coronene tetracarboxylate salt (CS) in polyvinyl alcohol (PVA) thin film solutions processed from water, neat or mixed with varying ratios of a europium tris(hexafluoroacetylacetoanto) diaquo complex [Eu(hfac)3(H 2O)2]. Neat CS-PVA showed not only well-defined fluorescence peaks but also a long-lived phosphorescence emission, persisting for more than 1 second. Interaction between the CS and EuIII molecules, mediated by means of carboxylate coordination to the Eu III, was attained by simple incorporation into the PVA polymer matrix and resulted in energy transfer from the coronone antenna to the europium centre. Under various blend ratios of CS and the EuIII complex, total photoluminescence quantum yields of typically around 30 % were achieved. The straightforward processing of this type of self-assembled chromophore-lanthanide system into a luminescent polymer film offers potential for application to other chromophores, lanthanides and polymers.

Original languageEnglish
Pages (from-to)3095-3100
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Issue number19
DOIs
Publication statusPublished - 2014

Keywords

  • Coronene
  • Europium
  • Luminescense
  • Photophysics
  • Polymers
  • Thin films

ASJC Scopus subject areas

  • Inorganic Chemistry

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    Planells, M., Klampaftis, E., Congiu, M., Shivanna, R., Rao, K. V., Chepelin, O., Jones, A. C., Richards, B. S., George, S. J., Narayan, K. S., & Robertson, N. (2014). Luminescent polymer films from simple processing of coronene and europium precursors in water. European Journal of Inorganic Chemistry, (19), 3095-3100. https://doi.org/10.1002/ejic.201402228