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

Droege, Stefan; Loebbert, Andreas; Dröge, Stefan; O'Neill, Mary; Löbbert, Andreas; Kitney, Stuart P.; Kelly, Stephen M.; Wei, Pan; Dong, Dewen

Abstract

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.

Citation

Dröge, S., O'Neill, M., Löbbert, A., Kitney, S. P., Kelly, S. M., Wei, P., & Dong, D. (2009). A new approach to photoalignment: photo-addition to a self-assembled monolayer. Journal of Materials Chemistry, 19(2), 274-279. https://doi.org/10.1039/b812226a

• Journal Article Type: Article
• Acceptance Date: Oct 24, 2008
• Online Publication Date: Nov 21, 2008
• Publication Date: Jan 14, 2009
• Deposit Date: Nov 13, 2014
• Journal: Journal Of Materials Chemistry
• Print ISSN: 0959-9428
• Electronic ISSN: 1364-5501
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 19
• Issue: 2
• Pages: 274-279
• DOI: https://doi.org/10.1039/b812226a
• Keywords: Photoalignment, Liquid crystal, polyimide, polymer, self-assembled monloayer,
• Public URL: https://hull-repository.worktribe.com/output/461284