Journal
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
Volume 23, Issue 2, Pages 63-73Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cossms.2018.11.004
Keywords
Cellulose nanocrystals; Iridescence; Circularly polarised light; Liquid crystals; Bio-inspired materials; Photonics
Funding
- FEDER funds through the COMPETE 2020 Program [POCI-01-0145-FEDER-007688, UID/CTM/50025, UID/BIA/00329/2013, PTDC/CTM-BIO/6178/2014, M-ERA-NET2/0007/2016, PTDC/CTM-REF/30529/2017]
- FCT -Portuguese Foundation for Science and Technology [POCI-01-0145-FEDER-007688, UID/CTM/50025, UID/BIA/00329/2013, PTDC/CTM-BIO/6178/2014, M-ERA-NET2/0007/2016, PTDC/CTM-REF/30529/2017]
- POR Lisboa2020 [POCI-01-0145-FEDER-007688, UID/CTM/50025, UID/BIA/00329/2013, PTDC/CTM-BIO/6178/2014, M-ERA-NET2/0007/2016, PTDC/CTM-REF/30529/2017]
- Minister of Science, Technology and Higher Education
- European Social Funds [SFRH/BDP/78430/2011, SFRH/BPD/84478/2012]
- FCT [SFRH/BDP/78430/2011, SFRH/BPD/84478/2012]
- Histology and Comparative Pathology laboratory [Electron Microscopy service] of the Instituto de Medicina Molecular Joao Lobo Antunes
- Fundação para a Ciência e a Tecnologia [PTDC/CTM-REF/30529/2017] Funding Source: FCT
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Significant advances have been made to control the iridescence and the selective reflection of left circularly polarised (LCP) light, and transmission of right circularly polarised (RCP) light of solid films prepared from cellulose nanocrystals (CNCs). However the manipulation of the photonic properties of the CNCs films, which reflect both RCP and LCP light is less investigated. Solid films prepare from natural sources as CNCs have advantageous characteristics that are absent in other synthetic structures, such as wide availability and renewability. Here we review and compare recent research activity involving the production and characterization of photonic band gap structures resulting from an anisotropic layer inserted between two cholesteric layers with different helical pitches but the same handedness. We make connections between systems existing in Nature and synthetic ones with the hope of advancing in the production and manipulation of CNCs-based photonic structures.
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