A new approach to photoalignment : photo-addition to a self-assembled monolayer

Photoalignment used to control the orientation of nematic liquid crystals in LCDs usually involves the photochemical modification of the chemical structure of an organic thin film so that an optical and/or steric anisotropy is developed. We now demonstrate a novel photoadditive alternative whereby s...

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Veröffentlicht in:	Journal of materials chemistry 2009-01, Vol.19 (2), p.274-279
Hauptverfasser:	DRÖGE, Stefan, O'NEILL, Mary, LÖBBERT, Andreas, KITNEY, Stuart P, KELLY, Stephen M, PAN WEI, DEWEN DONG
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Fundamental areas of phenomenology (including applications) Optical coatings Optical elements, devices, and systems Optics Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Photoalignment used to control the orientation of nematic liquid crystals in LCDs usually involves the photochemical modification of the chemical structure of an organic thin film so that an optical and/or steric anisotropy is developed. We now demonstrate a novel photoadditive alternative whereby small photoreactive molecules are bound to a photoreactive SAM surface by irradiation with polarised UV so that the surface properties are changed and a surface anisotropy is developed.
ISSN:	0959-9428 1364-5501
DOI:	10.1039/b812226a