Publication

Exploring the potential of europium(III) luminescence for the detection of phase transitions in ionic liquid crystals

Jean-Claude Bünzli, Anne-Sophie Chauvin, Frédéric Gumy
2007
Journal Articles

Abstract

The ionic liquid crystal [C12-mim]Cl has been doped with 5 mol% europium nitrate and the photophysical properties of both the ionic liquid and the trivalent europium ion have been monitored with respect to temperature in the range of 248 to +120 uC. The relative transition probabilities to the various ligand-field sub-levels are sensitive to the phase transitions, but the other photophysical parameters, lifetimes and overall intensities of the transitions to Eu(7F2) and Eu(7F4), display monotonous variation with temperature.

Official source

https://infoscience.epfl.ch/entities/publication/60422578-4c65-491f-9f86-fb1dd75504ad

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Exploring the potential of europium(III) luminescence for the detection of phase transitions in ionic liquid crystals

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