Article (Scientific journals)
Correlation between structural properties and iridescent colors of cellulose nanocrystalline films
Licen, M. V.; Majaron, B.; Noh, Junghyun et al.
2016In Cellulose
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Keywords :
Cellulose nanocrystals; Cholesteric liquid crystal; Photonic crystal
Abstract :
[en] We investigate the effect of shear flow applied during the drying of aqueous suspension of cellulose nanocrystals on optical reflective properties and structural characteristics of the resulting solidified films. Shear flow can significantly improve internal structural homogeneity of the films, while its effect on optical reflective properties is relatively minor. The measured width of the selective reflection peak is an order of magnitude larger than expected for an ideal helically modulated structure, which reflects a distribution of pitch values and possibly also of regimes of distorted helical modulation. We attribute these imperfections to the broad size distribution of the cellulose nanocrystals.
Disciplines :
Physics
Author, co-author :
Licen, M. V.
Majaron, B.
Noh, Junghyun ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Schütz, Christina
Bergström, Lennart
Lagerwall, Jan  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Drevensek-Olenik, Irena
External co-authors :
yes
Language :
English
Title :
Correlation between structural properties and iridescent colors of cellulose nanocrystalline films
Publication date :
13 September 2016
Journal title :
Cellulose
ISSN :
1572-882X
Publisher :
Springer, Netherlands
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Funders :
National Research Program of Slovenia P1-0192
Wallenberg Wood Science Center (WWSC)
Research Foundation – Flanders (FWO)
Available on ORBilu :
since 19 September 2016

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