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Proceedings Paper

Polarized electroluminescence from photocrosslinkable nematic fluorene bisacrylates
Author(s): Markus Jandke; D. Hanft; Peter Strohriegl; Katharine S. Whitehead; Martin Grell; Donal D. C. Bradley
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Paper 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.

Paper Details

Date Published: 2 February 2001
PDF: 10 pages
Proc. SPIE 4105, Organic Light-Emitting Materials and Devices IV, (2 February 2001); doi: 10.1117/12.416913
Show Author Affiliations
Markus Jandke, Univ. Bayreuth (Germany)
D. Hanft, Univ. Bayreuth (Germany)
Peter Strohriegl, Univ. Bayreuth (Germany)
Katharine S. Whitehead, Univ. of Sheffield (United Kingdom)
Martin Grell, Univ. of Sheffield (United Kingdom)
Donal D. C. Bradley, Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 4105:
Organic Light-Emitting Materials and Devices IV
Zakya H. Kafafi, Editor(s)

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