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Open AccessArticle

Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating

Cinvestav-Querétaro, Libramiento Norponiente 2000, 76230 Querétaro, Mexico
Materials Optics, Department of Physics, Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(1), 45;
Received: 16 November 2018 / Revised: 13 December 2018 / Accepted: 22 December 2018 / Published: 31 December 2018
(This article belongs to the Special Issue Design and Development of Nanostructured Thin Films)
PDF [6250 KB, uploaded 31 December 2018]


Transparent films of cellulose nanocrystals (CNC) are prepared by dip-coating on glass substrates from aqueous suspensions of hydrolyzed filter paper. Dragging forces acting during films’ deposition promote a preferential alignment of the rod-shaped CNC. Films that are 2.8 and 6.0 µm in thickness show retardance effects, as evidenced by placing them between a linearly polarized light source and a linear polarizer sheet in the extinction configuration. Transmission Mueller matrix spectroscopic ellipsometry measurements at normal incidence as a function of sample rotation were used to characterize polarization properties. A differential decomposition of the Mueller matrix reveals linear birefringence as the unique polarization parameter. These results show a promising way for obtaining CNC birefringent films by a simple and controllable method. View Full-Text
Keywords: nanostructured films; birefringence; nanocrystalline cellulose; Mueller matrix nanostructured films; birefringence; nanocrystalline cellulose; Mueller matrix

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Mendoza-Galván, A.; Tejeda-Galán, T.; Domínguez-Gómez, A.B.; Mauricio-Sánchez, R.A.; Järrendahl, K.; Arwin, H. Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating. Nanomaterials 2019, 9, 45.

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