44‐1: <i>Invited Paper:</i> Absorption Problem of Multilayer Optical Structures Based on High Anchoring Azo‐dye Photoalignment of Polymerizable Liquid Crystals-Reference-Cited by-同舟云学术

44‐1: Invited Paper: Absorption Problem of Multilayer Optical Structures Based on High Anchoring Azo‐dye Photoalignment of Polymerizable Liquid Crystals

Published:2024-04 Issue:S1 Volume:55 Page:377-380
ISSN:0097-966X
Container-title:SID Symposium Digest of Technical Papers
language:en
Short-container-title:Symp Digest of Tech Papers

Author:

Muravsky Alexander¹,Stanevich Veranika²,Kukhta Iryna²,Chepeleva Daminika²,Yakovleva Alina¹,Murauski Anatoli²

Affiliation:

1. Private Research Unitary Enterprise ‘MTLCD’ Minsk Belarus

2. Institute of Chemistry of New Materials, National Academy of Science of Belarus Minsk Belarus

Abstract

Chemical compatibility of water‐soluble azo‐dye photoalignment materials opens up new possibilities of thin‐film optical devices fabrication with advanced characteristics combining several polymerizable liquid crystal layers into multilayer structures of broadband quarter or half wave retarders. However when the azodye photoalignment layer is placed in‐between two layers of polymerizable liquid crystal significant increase of dye absorption is observed. Analysis of this ‘Absorption Problem’ concludes azodye inter‐layer field is the cause of polarization and cis‐trans equilibrium change. New water‐soluble azo‐dye photoalignment material AmA‐2522 is suggested as perspective problem solution.

Publisher

Wiley

Reference7 articles.

1. Photoinduced hole dipoles’ mechanism of liquid crystal photoalignment

2. High anchoring photoalignment material based on new photo‐induced hole dipoles' mechanism

3. Waterproof material for liquid crystals photoalignment based on azo dyes

4. 47.1: Green Technology of Photoalignment Layer Coating from H₂O solution for Achromatic Polymerizable Liquid Crystal Retarder