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Influence of ionothermal synthesis using BmimBF4 as solvent on nanophosphors BaFBr:Eu2+ photoluminescence

Abstract

Ionothermal synthesis is a strongly growing research area due to the outstanding physical and chemical properties of ionic liquid (IL) to design new materials, however the effect of these ILs on material’s luminescence properties is poorly known. In this work, it is shown that the imidazolium based BmimBF4 ionic liquid, used as a solvent during the synthesis, tethers at the surface of the nanoparticles and influences the photoluminescence of the nanophosphor BaFBr:Eu2+ materials. By time resolved spectroscopy two different emissions are observed for the material synthesized by ionothermal approach, one corresponding to Eu(II) 5d-4f transitions in BaFBr host with a decay time of 843 ns and the other with a much faster decay time to the ionic liquid BmimBF4.

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Supplementary files

Publication details

The article was received on 23 Aug 2018, accepted on 03 Oct 2018 and first published on 03 Oct 2018


Article type: Communication
DOI: 10.1039/C8NR06842A
Citation: Nanoscale, 2018, Accepted Manuscript
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    Influence of ionothermal synthesis using BmimBF4 as solvent on nanophosphors BaFBr:Eu2+ photoluminescence

    J. Olchowka, H. Hagemann, M. T. Delgado Pérez and C. Wickleder, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR06842A

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