Issue 2, 2020

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

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

Supplementary files

Article information

Article type
Communication
Submitted
18 sep 2019
Accepted
02 okt 2019
First published
02 okt 2019
This article is Open Access
Creative Commons BY-NC license

Mater. Horiz., 2020,7, 511-519

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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