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The synthesis and application of novel benzodithiophene based reactive mesogens with negative wavelength dispersion birefringence
File(s)
d1tc05068k.pdf (2.5 MB)
Published version
OA Location
Author(s)
Allen, James DW
Adlem, Kevin
Heeney, Martin
Type
Journal Article
Abstract
Optical corrective retardation films are widely used in the display industry to compensate for a variety of imperfections such as off-axis contrast reduction, grey-scale inversion and colour shifts in LCDs and backplane reflections in OLEDs. A wide variety of these films have been produced by multiple methods, however, obtaining ideal wavelength dispersion remains difficult and costly to achieve in thin, single-layer systems. In this work, we report the synthesis of a novel series of reactive mesogen materials designed to exhibit negative wavelength dispersion birefringence. This series of photopolymerisable materials based on a benzodithiophene core exhibiting either an ‘X’-shaped or ‘T’-shaped geometry were synthesised. Their negative wavelength dispersion birefringence properties were investigated in aligned films prepared from photo-polymerised reactive mesogen host mixtures. The nature of the substituents on the BDT core was found to have a significant impact on performance, and materials with an X-shaped geometry were found to exhibit much higher performance than those with a T-shape.
Date Issued
2021-11-18
Date Acceptance
2021-11-18
Citation
Journal of Materials Chemistry C, 2021, 9 (48), pp.17419-17426
URI
URL
DOI
ISSN
2050-7526
Publisher
Royal Society of Chemistry
Start Page
17419
End Page
17426
Journal / Book Title
Journal of Materials Chemistry C
Volume
9
Issue
48
Copyright Statement
© The Royal Society of Chemistry 2021. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000721881500001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Physics, Applied
Materials Science
Physics
LIQUID
ORIENTATION
MOLECULES
Publication Status
Published
Date Publish Online
2021-11-18