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Title: Luminescence of lanthanidomesogens in the liquid crystal state
Authors: Binnemans, Koen # ×
Issue Date: 2008
Publisher: NWT-Verlag (Bornheim, Germany)
Host Document: Conference Proceedings der XXI. Tage der Seltenen Erden - Terrae Rarae 2008 pages:3-3
Conference: XXI. Tage der Seltenen Erden - Terrae Rarae 2008 location:Bochum (Germany) date:4-6 December 2008
Article number: K 03
Abstract: A lanthanide center can add unique magnetic or spectroscopic properties to a liquid crystal [1,2]. The first examples of lanthanide-containing liquid crystals (lanthanidomesogens) had rather high transition temperatures (>100 °C) and low thermal stability at these elevated temperatures. These were major drawbacks that hampered the study of the physical properties of these materials. It is especially difficult to observe light emission (luminescence) at high temperatures because of the strong tendency of the excited states to de-activate via non-radiative transitions. However, careful design of lanthanidomesogens on the basis of previously gained experience enables at present to obtain lanthanide complexes that are liquid-crystalline at very moderate temperatures or even at room temperature. Thanks to this recent progress, luminescence studies of lanthanidomesogens in the liquid crystal state are starting to appear in the scientific literature [3]. This lecture gives an overview of these recent developments, with an emphasis on the work performed by the Leuven group. A fascinating property of these materials is the ability to observe linearly polarized emission [4].

[1] K. Binnemans, C. Görller-Walrand, Chem. Rev., 2002, 102, 2303.
[2] C. Piguet, J.-C. G. Bünzli, B. Donnio, D. Guillon, Chem. Commun., 2006, 3755.
[3] K. Binnemans, J. Mater. Chem., 2009, DOI: 10.1039/B811373D.
[4] Y.G. Galyametdinov, A.A. Knyazev, V.I. Dzhabarov, T. Cardinaels, K. Driesen, C. Görller-Walrand, K. Binnemans, Adv. Mater., 2008, 20, 252.
ISBN: 978-3-941372-00-9
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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