Ordering in stretch-tunable polymeric opal fibers

Finlayson, Chris E.; Goddard, Chris; Papachristodoulou, Elpida; Snoswell, David R. E.; Kontogeorgos, Andreas; Spahn, Peter; Hellmann, G. P.; Hess, Ortwin; Baumberg, Jeremy J.

doi:10.1364/oe.19.003144

Cited by 77 publications

(66 citation statements)

References 23 publications

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“…One of the most important and interesting properties of natural opals is the tuneable structural colour effect. This provides a novel way of producing colours without colourants [6] and has practical applications such as structurally coloured films [7][8][9], effect pigments [10], photonic papers and inks [11], opal fibres and fabrics [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Self-assembly of silica colloidal crystal thin films with tuneable structural colours over a wide visible spectrum

Gao

Rigout

Owens

2016

Applied Surface Science

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Colloidal crystal (CC) thin films that produce structural colours over a wide visible spectrum have been self-assembled from silica nanoparticles (SNPs) using a natural sedimentation method. A series of colloidal suspensions containing uniform SNPs (207-350 nm) were prepared using the Stöber method. The prepared silica suspensions were directly subjected to natural sedimentation at an elevated temperature. The SNPs were deposited under the force of gravity and selfassembled into an ordered array. The solid CC thin films produced structural colours over a wide visible spectrum from red to violet. Visual inspection and colorimetric measurements indicated that the structural colour of the CC thin film is tuneable by varying the SNPs diameters and the viewing angles. The closely packed face-centred cubic (fcc) structure of the CC thin film was confirmed using SEM imaging and was in agreement with the intense colour observed from the film surface.

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Section: Introductionmentioning

confidence: 99%

Self-assembly of silica colloidal crystal thin films with tuneable structural colours over a wide visible spectrum

Gao

Rigout

Owens

2016

Applied Surface Science

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“…Due to increased awareness of ecological sustainability, development of dye-free fibers based on natural coloration is a growing area of research [26][27][28][29][30][31][32][33] . Several groups have recently attempted fabricating structurally colored cylindrical fibers 26-30, 33, 34 , with a general concept of using colloidal spheres to form a periodic structure along the fibers.…”

Section: Introductionmentioning

confidence: 99%

Structural Coloration of Colloidal Fiber by Photonic Band Gap and Resonant Mie Scattering

Yuan

Zhou

Shi

et al. 2015

ACS Appl. Mater. Interfaces

117

101

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Because structural color is fadeless and dye-free, structurally colored materials have attracted great attention in a wide variety of research fields. In this work, we report the use of a novel structural coloration strategy applied to the fabrication of colorful colloidal fibers. The nanostructured fibers with tunable structural colors were massively produced by colloidal electrospinning. Experimental results and theoretical modeling reveal that the homogeneous and noniridescent structural colors of the electrospun fibers are caused by two phenomena: reflection due to the band gap of photonic structure and Mie scattering of the colloidal spheres. Our unprecedented findings show promise in paving way for the development of revolutionary dye-free technology for the coloration of various fibers.

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“…Recently, various methods to tune the sphere distances in a 3D photonic crystal were accomplished. The vast majority of those studies achieved a change of lattice constant by swelling of the matrix in an appropriate solvent or by implementing the spheres in a soft matrix to attain tunability by stretching . Both approaches, however, have some serious drawbacks.…”

Section: Shape‐fixity Ratio Rf and Shape Recovery Ratio Rr For The Exmentioning

confidence: 99%

Tuning of Structural Colors Like a Chameleon Enabled by Shape‐Memory Polymers

Schauer

Baumberg

Hölscher

et al. 2018

Macromol. Rapid Commun.

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Nature often uses structuring of materials for coloration rather than incorporating dye molecules, since single-construction materials are capable of producing any vivid visible color in plants and insects. By precisely engineering features that diffract or scatter light, more recently, humans have created similarly intense non-fading colors. Stretchable polymer opals have emerged as a single material which can dynamically shift across the whole visible spectrum using structural colors, by temporary stretching or compression. For energy efficiency and practical considerations, however, it is necessary to fix semi-permanently desired colors without continuous stretching or application of other stimuli or energy. Here, a polymer opal incorporating a shape-memory polymer embedded in its matrix can keep a particular color fixed without the application of external forces, yet can be reprogrammed to a different fixed color on demand. The influence of the material composition on its optical appearance, shape-fixity, and shape recovery abilities in controlled stretch experiments is quantified. High-speed printing-compatible localized compression pattern imprinting is shown to generate stable but easily erasable color patterns. This opens up the potential for durable and energy-efficient yet reusable and reconfigurable displays, wearables, or packaging and security labeling based on such polymeric film materials.

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Ordering in stretch-tunable polymeric opal fibers

Cited by 77 publications

References 23 publications

Self-assembly of silica colloidal crystal thin films with tuneable structural colours over a wide visible spectrum

Self-assembly of silica colloidal crystal thin films with tuneable structural colours over a wide visible spectrum

Structural Coloration of Colloidal Fiber by Photonic Band Gap and Resonant Mie Scattering

Tuning of Structural Colors Like a Chameleon Enabled by Shape‐Memory Polymers

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