Roll-to-roll fabrication of touch-responsive cellulose photonic laminates.
View / Open Files
Authors
Publication Date
2018-11-06Journal Title
Nat Commun
ISSN
2041-1723
Publisher
Springer Science and Business Media LLC
Volume
9
Issue
1
Pages
4632
Language
eng
Type
Article
This Version
VoR
Physical Medium
Electronic
Metadata
Show full item recordCitation
Liang, H., Bay, M., Vadrucci, R., Barty-King, C., Peng, J., Baumberg, J., De Volder, M., & et al. (2018). Roll-to-roll fabrication of touch-responsive cellulose photonic laminates.. Nat Commun, 9 (1), 4632. https://doi.org/10.1038/s41467-018-07048-6
Abstract
Hydroxypropyl-cellulose (HPC), a derivative of naturally abundant cellulose, can self-assemble into helical nanostructures that lead to striking colouration from Bragg reflections. The helical periodicity is very sensitive to pressure, rendering HPC a responsive photonic material. Recent advances in elucidating these HPC mechano-chromic properties have so-far delivered few real-world applications, which require both up-scaling fabrication and digital translation of their colour changes. Here we present roll-to-roll manufactured metre-scale HPC laminates using continuous coating and encapsulation. We quantify the pressure response of the encapsulated HPC using optical analyses of the pressure-induced hue change as perceived by the human eye and digital imaging. Finally, we show the ability to capture real-time pressure distributions and temporal evolution of a human foot-print on our HPC laminates. This is the first demonstration of a large area and cost-effective method for fabricating HPC stimuli-responsive photonic films, which can generate pressure maps that can be read out with standard cameras.
Sponsorship
Biotechnology and Biological Sciences Research Council (BB/K014617/1)
Engineering and Physical Sciences Research Council (EP/N016920/1)
European Research Council (639088)
Engineering and Physical Sciences Research Council (EP/L027151/1)
Engineering and Physical Sciences Research Council (EP/L016567/1)
Swiss National Science Foundation (165176)
Biotechnology and Biological Sciences Research Council (BB/L016567/1)
Identifiers
External DOI: https://doi.org/10.1038/s41467-018-07048-6
This record's URL: https://www.repository.cam.ac.uk/handle/1810/286432
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.