All‐In‐One Photonic Crystals With Multi‐Stimuli‐Chromic, Color‐Recordable, Self‐Healable, and Adhesive Functions

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Abstract Fabricating photonic crystals (PCs) with dynamic multi‐stimuli‐responsive structural colors, recordable and self‐healable properties is significant for their emerging applications, yet remains a big challenge. Here, an all‐in‐one multifunctional PC (MFPC) film outstanding mechanochromic, thermochromic, solvatochromic, color/shape‐recordable, self‐healable, adhesive functions designed prepared by simply non‐close‐assembling silica particles into the unique 2‐[[(Butylamino)carbonyl]oxy]ethyl acrylate (BCOEA) followed photopolymerization. The success mainly due to rational combination of non‐close‐packing structures BCOEA's characteristics, including its urethane groups numerous sacrificial hydrogen bonds, temperature‐dependent refractive index, swellable deformable polymer network, as well low glass‐transition temperature. MFPC's hue color saturation can be reversibly dynamically modulated strain/pressure/solvents temperature, respectively, thereby realizing visually spectrally sensing these stimuli. More interestingly, color‐responsiveness combined other endows MFPCs fascinating multilayer optical filters, inkless printing, reconfigurable multicolor patterns, stretching‐based anti‐counterfeiting, etc. This work offers new perspective designing next‐generation smart materials will facilitate all‐round applications.

Language: Английский

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Advances in Photonic Crystal Research for Structural Color

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 3, 2024

Abstract Structural color is a remarkable physical phenomenon that exists widely in nature. Unlike traditional rendering methods, they are realized mainly through micro/nanostructures interfere, diffract, scatter light, and exhibit long‐life environmental‐friendly effects. In nature, few organisms use their color‐changing system to transmit information, such as courtship, warning, or disguise. Meanwhile, some natural inorganic minerals can also structural colors. Learning from scientists have achieved large‐scale design manufacturing technology for artificial photonic crystals. Photonic crystals unique microstructure forms band gap under the action of periodic potential field, consequently causing Bragg scattering due arrangement different refractive index media within them. Because apparent ability form local photons at crystal defects, been extensively studied recent years broad application prospects fibers, optical computers, chips, other fields. this review, research, properties, applications presented, well insight into future developments

Language: Английский

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Robust and Durable Photonic Crystal with Liquid-Repellent Property for Self-Cleaning Coatings and Structural Colored Textiles

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(27), P. 35639 - 35650

Published: June 25, 2024

Photonic crystal coatings with unique structural colors and self-cleaning properties have been providing an efficient way for substrate coloration. However, the enhancement of robustness durability colored to meet requirements in diverse environments remains a challenging task. Here, realize application photonic films under various kinds conditions, we present poly(fluoroalkyl acrylate)-based colloidal (fCPC) coating. Fluorinated core–interlayer–shell (FCIS) particles polystyrene (PS) core, poly(methyl methacrylate) (PMMA) interlayer, acrylate-ethyl acrylate-butyl acrylate) (P(FA-EA-BA)) shell copolymers first prepared by stepwise emulsion polymerization. fCPCs self-supporting property, reprocessing ability, friction resistance, as well excellent wettability liquid-repellent are successfully obtained via bending-induced ordering technique (BIOT). When applied antifouling applications, fCPC film exhibits resistance against oil inorganic liquids. Furthermore, demonstrate their outdoor conditions maintaining stable color appearances during rainy sunny conditions. Additionally, electronic product adhered is presented, which surface that clean even after prolonged usage comparison conventional CPC Structural textiles enhanced stability functionalized achieved through one-step process using FCIS particles. Therefore, developed comprehensive capable withstanding may open up new avenues advancement coloration decoration, vehicle, textile, building.

Language: Английский

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Bioinspired Structural Color Hydrogel Skin from Nonclose-Packed Colloidal Crystal Arrays for Epidermal Sensing

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 8, 2025

Developing multifunctional structural color hydrogel skin without sacrificing the unique periodic structure of photonic crystals is still a challenge due to bandgap limitation. Taking advantage synergistic effect electrostatic repulsion and electronic conductivity, an intelligent with electrical sensing capabilities has been developed by doping MXene (Ti3C2Tx) nanosheets adhesive functional groups (nucleobases) into colloidal particle solutions. The introduction could improve both stability conductivity solutions, resulting in conductive bright colors. With help nucleobases, was also endowed high biocompatibility strong adhesion different substrates, including wet surfaces tissues. It demonstrated that can not only realize visual tiny limb movements but provide stable signals. be integrated capacitor device as simulate sensory function human skin. results showed such touch perceive on body surface These features hydrogels make them potentially excellent value bioinspired electronics.

Language: Английский

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A review of high thermal conductivity carbon-based materials for microwave absorption materials

New Carbon Materials, Journal Year: 2025, Volume and Issue: 40(1), P. 111 - 130

Published: Feb. 1, 2025

Language: Английский

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Photonic Crystal Hydrogel Film with Responsive Structural Color for Multifunctional Sensing

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Responsive photonic crystal materials that can change their structural color in response to external stimuli have attracted growing attention the research area of flexible electronics. This study presents a conductive hydrogel film featuring an inverse opal structure designed for use wearable sensors. The consists double-network structure, where first network is formed by acrylic acid and acrylamide (P(AA-co-AM)), second composed quaternized chitosan. By incorporating multiwall carbon nanotubes (MWCNTs) into hydrogel, not only conductivity enhanced but also tensile strength significantly improved (0.45 MPa). Due excellent stretchability architecture matrix, exhibited vibrant tunable colors applied stress or strain. Leveraging these attributes, visualized changes provided feedback on electrical signals strain stimuli, thereby functioning as dual-signal soft sensor real-time monitoring optical related human motion. In addition, presence chitosan, known its water absorption properties, allows swell while shrinking ethanol. characteristic enables quantitatively respond ethanol through noticeable changes. work demonstrates strategy synergistic enhancement mechanical properties hydrogels combination MWCNTs structure. presented film, output, exhibits remarkable potential applications devices multifunctional

Language: Английский

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Photonic Crystal Materials with Full Spectrum Structural Color Modulated by Co‐Assembly Strategy

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(23)

Published: May 31, 2024

Abstract Photonic materials have drawn considerable attention for a great deal of promising applications with versatile optical characteristics and functionalities. This review provides concise overview co‐assembly strategies the creation photonic crystals, offering precise control over structural colors throughout entire visible spectrum by manipulating interaction light complex micro‐nano structures. Specifically, utilization block copolymers (BCPs) colloidal nanoparticles as wavelength‐scale building blocks facilitates modulation defined nanostructures functionality tailorability diverse coloration effects. Additionally, facilely adjusting relative ratios, flexible balance can be struck between crystals glasses dynamic arrangements. Finally, this concludes discussing future outlook challenges in advancing co‐assembly‐based functional materials.

Language: Английский

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Ultra‐Bright Stimuli‐Responsive Photonic Crystals for High‐Performance Anticounterfeiting Coatings

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Abstract Photonic crystals (PCs) with unique light manipulation capability have attracted widespread attentions. However, weak photonic bandgaps, poor structural color saturation, and tedious preparation process restrict their further development practical application. Herein, an ultra‐bright stimuli‐responsive PC film excellent optical performance is prepared by assembly of cadmium sulfide@polyacrylic acid (CdS@PAA) core–shell nanoparticles into PCs through molecule‐mediated shearing‐induced technique (MSAT), this fabrication fast facile, the solid periodic micro/nano‐structures can be formed within 10 s, a wide selection range obtained. The high refractive index CdS guarantees brightness films. prerequisite using MSAT for large‐sized that CdS@PAA possess appropriate thickness PAA shell. Compared conventional PCs, films present strong bandgaps relative reflectance up to 130% compared standard aluminum mirror, which more than four times reflectivity PS@PAA microspheres. In addition, paint mashing blending it transparent polydimethylsiloxane (PDMS) matrix, coating alkali treated pigments achieve good water response ability anticounterfeiting effect.

Language: Английский

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Bioinspired structural color hydrogel skin from colloidal crystal arrays for epidermal sensing

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 25, 2024

Developing multifunctional structural color hydrogel skin without sacrificing the unique periodic structure of photonic crystals is still a challenge due to bandgap limitation. Taking advantage synergistic effect electrostatic repulsion and electronic conductivity, an intelligent with electrical sensing capabilities has been developed by doping MXene (Ti₃C₂T_x) nanosheets adhesive functional groups (nucleobases) into colloidal particle solutions. The introduction could improve both stability conductivity solutions, resulting in conductive bright colors. With help nucleobases, was also endowed high biocompatibility strong adhesion different substrates, including wet surface tissues. It demonstrated that can not only realize visual tiny limb movements but provide stable signals. be integrated capacitor device as simulate sensory function human skin. results showed such touch perceive on body singles. These features hydrogels make them potentially excellent value bio-inspired electronics.

Language: Английский

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Fabrication of closed-cell inverse opal photonic crystal pigments with angle-independent and stable structural colors

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Benefiting from closed-cell inverse opal structures, photonic crystal pigments with stable and angle-independent structural colors were fabricated.

Language: Английский

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