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2 February 2001 Polarized electroluminescence from photocrosslinkable nematic fluorene bisacrylates
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Abstract
In this paper the monodomain-alignment of new photocrosslinkable fluorene bisacrylate model compounds and oligomers is reported. The orientation of the nematic LC- phase is preserved by photopolymerization in an oriented LC- network. Monodomain orientations of crosslinked fluorene bisacrylates are investigated by UV-VIS and photoluminescence spectroscopy comparing different alignment layers. OLEDs were fabricated using oriented fluorene bisacrylates and polyfluorenes leading to state-of-the-art polarization ratios for electroluminescence of up to 25 and brightnesses of about 250 Cd/m2.
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Markus Jandke, D. Hanft, Peter Strohriegl, Katharine S. Whitehead, Martin Grell, and Donal D. C. Bradley "Polarized electroluminescence from photocrosslinkable nematic fluorene bisacrylates", Proc. SPIE 4105, Organic Light-Emitting Materials and Devices IV, (2 February 2001); https://doi.org/10.1117/12.416913
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