Enhancing the circular polarization degree of NIR-II circularly polarized light of cellulose nanocrystal films

Lu, Di; Yu, Xiao; Zhu, Shoujun; Xu, Yan

doi:10.1007/s10570-023-05424-0

Cellulose

2023

DOI: 10.1007/s10570-023-05424-0

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Enhancing the circular polarization degree of NIR-II circularly polarized light of cellulose nanocrystal films

Di Lu,

Xiao Yu,

Shoujun Zhu

et al.

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Chiral nematic cellulose nanocrystal composites: An organized review

De France

2024

Can J Chem Eng

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Cellulose nanocrystals (CNCs) are commercially available materials derived from cellulose, the most abundant biopolymer on our planet. Due largely to their high strength, high surface area‐to‐volume ratio, tailorable surface chemistry, and the abundance of biomass feedstocks with which to produce them, CNCs have attracted significant interest in applications spanning the paints and coatings, composites, packaging, and biomedical sectors. However, and perhaps most interestingly, CNCs will self‐assemble (or, as I've teased in the title, organize) to form highly ordered chiral nematic liquid crystal phases when concentrated in suspension. Upon complete solvent evaporation, this chiral nematic order is ‘locked’, yielding films with structural colour—colour arising not due to chemical pigments, but rather due to the physical structure of a material itself. In the pursuit of novel multi‐functional materials, research interest has shifted recently towards the incorporation of functional additives to form composite chiral nematic films. Along with introducing the basics of liquid crystals and self‐assembly, this review discusses the main approaches used in order to form CNC‐based composite films: co‐assembly, templating, and post‐processing, and highlights exceptional examples in each case. Finally, I give my uniquely Canadian perspective on the current status, future prospects, and major challenges associated with the development of CNC‐based chiral nematic composite materials.

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Chiral nematic cellulose nanocrystal composites: An organized review

De France

2024

Can J Chem Eng

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Enhancing the circular polarization degree of NIR-II circularly polarized light of cellulose nanocrystal films

Cited by 1 publication

References 40 publications

Chiral nematic cellulose nanocrystal composites: An organized review

Chiral nematic cellulose nanocrystal composites: An organized review

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