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Issue 2, 2020
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When nanocellulose meets diffraction grating: freestanding photonic paper with programmable optical coupling

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Abstract

Photonic crystals based on plasmonic or dielectric periodic structures have attracted considerable interest owing to their capabilities to control light–matter interactions with tailored precision. By using a nanocellulose derived chiral liquid crystal as a building block, here we demonstrate a bio-inspired dual photonic structure that contains the combination of microscopic periodic 1D surface grating and nanoscopic helical organization, giving rise to programmable colour mixing and polarization rotation. We show that a variation in the photonic band-gap in the bulk matrix leads to simultaneous control over the reflection and diffraction of light with controllable iridescence.

Graphical abstract: When nanocellulose meets diffraction grating: freestanding photonic paper with programmable optical coupling

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Supplementary files

Article information


Submitted
18 Sep 2019
Accepted
02 Oct 2019
First published
02 Oct 2019

This article is Open Access

Mater. Horiz., 2020,7, 511-519
Article type
Communication

When nanocellulose meets diffraction grating: freestanding photonic paper with programmable optical coupling

G. Chu, D. Qu, A. Camposeo, D. Pisignano and E. Zussman, Mater. Horiz., 2020, 7, 511
DOI: 10.1039/C9MH01485C

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    [Original citation] - Published by The Royal Society of Chemistry.

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