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Notes and references
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¨
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In conclusion, we have reported the synthesis of a novel neutral
tetranuclear bimetallic Yb3+/K+ assembly, by combination of Yb3+
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solid state, even where the ligand was perfluorinated to minimise
quenching. A highly efficient NIR-OLED using [Yb(KÁHOEt)(L)4]2 as
the source of the emitting layer was fabricated, demonstrating that
this species is a suitable precursor in optical materials science. The
performance of the device showed significant improvement com-
pared to OLEDs based on NIR emitting lanthanoid complexes
reported to date, highlighting how the exceptional photophysical
properties of the complex can be readily transferred to the device.
M.M. wishes to thank the ARC for funding. B.L.R. wishes to
thank Curtin University for the APA and the University of
Montreal. G.S.H. thanks the Natural Sciences and Engineering
Research Council of Canada. J.M.M and M.C. thank Project Por
Fesr-Tecnopolo AMBIMAT.
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11582 | Chem. Commun., 2014, 50, 11580--11582
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