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Anisotropic Thin Films Formation Rate On PEDOT : PSS Layer With High Azimuthal Anchoring

A. Stankevich, V. Bezruchenko, A. Muravsky, A. Murauski, V. Agabekov
Published 2016 · Computer Science

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Oriented organic layers have great potential for organic electronics devices because of the unique modification of material properties without extensive chemical synthesis. Such layers can be prepared by wet coating of anisotropic organic molecules on top of specific surface of alignment layer. One of the most important parameter that indicates alignment properties of the surface is the anchoring energy. In this paper, we investigate azimuthal anchoring energy of pure and glycerol-doped PEDOT : PSS layers and study the influence of the alignment layer preparation on the order parameter of the top wet-coated oriented organic emitter. We confirm that the azimuthal anchoring energy increase leads to improvement of both dichroic ratio and contrast ratio of polarized emitter layer rod-coated on top of the PEDOT : PSS. Suggested mechanism of anisotropic emitter formation at wet deposition grounds possibility of linear deposition rate of 2 m/s on top of PEDOT : PSS layer with obtained azimuthal anchoring above >10−4 J/m2.
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