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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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Publication details

The article was received on 18 Sep 2019, accepted on 02 Oct 2019 and first published on 02 Oct 2019


Article type: Communication
DOI: 10.1039/C9MH01485C
Mater. Horiz., 2019, Advance Article

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    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., 2019, Advance Article , DOI: 10.1039/C9MH01485C

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