From colour fingerprinting to the control of photoluminescence in elastic photonic crystals

Arsenault, André C.; Clark, Timothy; Freymann, Georg von; Cademartiri, Ludovico; Sapienza, Riccardo; Bertolotti, Jacopo; Vekris, E.; Wong, Sean; Kitaev, Vladimir; Manners, Ian; Wang, R. Z.; John, Sajeev; Wiersma, Diederik S.; Ozin, Geoffrey A.

doi:10.1038/nmat1588

Cited by 395 publications

(346 citation statements)

References 32 publications

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“…Most polymer materials that exhibit structural color are based on the incorporation of periodically packed colloidal particles into the polymer matrix, or the formation of a porous polymer matrix by etching away the precursor colloidal particles [37][38][39][40][41][42][43][44][45]. These photonic crystalline materials are therefore isotropic in structure, they have poor color quality and weak mechanical response, and their color tuning ability covers narrow wavelength band (< 70 nm).…”

Section: Mechano-responsive Color Tunabilitymentioning

confidence: 99%

Multi-functions of hydrogel with bilayer-based lamellar structure

Haque

Gong

2013

Reactive and Functional Polymers

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A novel hybrid hydrogel has been developed by combining bilayer-based lamellar structure of a self-assembled polymer surfactant and polymer network of conventional hydrogel system. A wide range of lamellar structure from micro-domain up to macro-domain (cm-scale) has been successfully generated in the hydrogel. Flat, infinitely large, and perfectly aligned lamellar macro-domain was formed by applying mechanical shear to the gel forming precursor solution containing monomer, cross-linker, and initiator. The obtained hydrogel system contains macroscopic, single-domain, periodical stacking of integrated microscopic lamellar bilayers inside the polymer matrix of the hydrogel. Periodical stacking of the bilayers in the hydrogel selectively diffract visible light to exhibit magnificent structural color. Due to the uniaxial orientation of the bilayer, the hydrogel possesses superb functions that have never been realized before, such as the one-dimensional swelling, anisotropic Young's modulus, anisotropic molecular permeation, and diffusion. Furthermore, the hydrogel exhibits excellent color tuning ability over a wide spectrum range by mechanical stimuli.3

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Section: Mechano-responsive Color Tunabilitymentioning

confidence: 99%

Multi-functions of hydrogel with bilayer-based lamellar structure

Haque

Gong

2013

Reactive and Functional Polymers

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“…By simply sandwiching the HPC water mesophase with polymer sheets, we obtain robust, large area and flexible strain sensors able to detect different types of deformation (e.g., compression, shear, and exten sion) from the optical signature. The fabricated sensors, there fore, overcome the shortfalls of conventional photonic crystal strain sensors, such as a lack of scalability [23,24] and incompat ibility with dry environments [25,26] and conventional electrical …”

mentioning

confidence: 99%

Biocompatible and Sustainable Optical Strain Sensors for Large‐Area Applications

Kamita

Frka‐Petesic

Allard

et al. 2016

Advanced Optical Materials

112

138

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By a simple two-step procedure, large photonic strain sensors using a biocompatible cellulose derivative are fabricated. Transient color shifts of the sensors are explained by a theoretical model that consideres the deformation of cholesteric domains, which is in agreement with the experimental results. The extremely simple fabrication method is suitable for both miniaturization and large-sale manufacture, taking advantage of inexpensive and sustainable materials

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“…To the best of our knowledge, this is the fastest response reported so far for mechanochromatic photonic gels 7,12,15,25,26 .…”

Section: Resultsmentioning

confidence: 67%

“…As photonic crystals constructed from soft materials, such as rubbers and gels, have the potential to change their periodicity through electrical 1,2 , magnetic 3 , chemical 4,5 , thermal 6 or mechanical stimuli [7][8][9] , they are drawing great attention for use as sensors [10][11][12][13] . For many applications, such as movie displays or fast responsive sensors, both full-colour tunability and video-rate fast colour switching are invaluable 9,14 .…”

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confidence: 99%

Mechano-actuated ultrafast full-colour switching in layered photonic hydrogels

et al. 2014

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Photonic crystals with tunability in the visible region are of great interest for controlling light diffraction. Mechanochromic photonic materials are periodically structured soft materials designed with a photonic stop-band that can be tuned by mechanical forces to reflect specific colours. Soft photonic materials with broad colour tunability and fast colour switching are invaluable for application. Here we report a novel mechano-actuated, soft photonic hydrogel that has an ultrafast-response time, full-colour tunable range, high spatial resolution and can be actuated by a very small compressive stress. In addition, the material has excellent mechanical stability and the colour can be reversibly switched at high frequency more than 10,000 times without degradation. This material can be used in optical devices, such as full-colour display and sensors to visualize the time evolution of complicated stress/strain fields, for example, generated during the motion of biological cells.

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From colour fingerprinting to the control of photoluminescence in elastic photonic crystals

Cited by 395 publications

References 32 publications

Multi-functions of hydrogel with bilayer-based lamellar structure

Multi-functions of hydrogel with bilayer-based lamellar structure

Biocompatible and Sustainable Optical Strain Sensors for Large‐Area Applications

Mechano-actuated ultrafast full-colour switching in layered photonic hydrogels

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