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Martusciello M, Lanfranchi A, Castellano M, Patrini M, Lova P, Comoretto D. Stretchable Distributed Bragg Reflectors as Strain-Responsive Mechanochromic Sensors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:51384-51396. [PMID: 39285762 DOI: 10.1021/acsami.4c13447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
Mechanochromic materials exhibit color changes upon external mechanical stimuli, finding wide-ranging applications in colorimetric sensing, display technology, and anticounterfeiting measures. Many of these materials rely on fluorescence properties and therefore necessitate external optical or electrical excitation. However, for broader applicability, the detection of color changes by the naked eye only or without complicated detection instrumentation is highly desirable. Photonic crystals offer a promising avenue for attaining such performances. In this work, we present elastomeric distributed Bragg reflectors (DBRs) characterized by a series of photonic bandgaps exhibiting mechanochromic response from the near-infrared to the visible wavelengths. To achieve this, we engineered alternating thin films of a thermoplastic fluoropolymer and a styrene-butadiene copolymer using different elastomeric substrates to attain different behaviors. The reported system demonstrates a reversible and instantaneous shift of the photonic bandgaps in response to 100% strain in multiple deformation cycles. Comparing the DBR stress-strain response with the optical strain response confirms a mechanochromic sensitivity of ∼1.7-6.9 nm/% and ∼80 nm/MPa, with an optical Poisson's ratio in the range 0.3-0.7. All these properties are spectrally dependent, as demonstrated by exploiting the properties of different diffraction order photonic band gaps.
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Affiliation(s)
- Martina Martusciello
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy
| | - Andrea Lanfranchi
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy
| | - Maila Castellano
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy
| | - Maddalena Patrini
- Dipartimento di Fisica, Università degli Studi di Pavia, Pavia 27100, Italy
| | - Paola Lova
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy
| | - Davide Comoretto
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genoa, Italy
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2
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Tang C. Fundamental Aspects of Stretchable Mechanochromic Materials: Fabrication and Characterization. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3980. [PMID: 39203158 PMCID: PMC11355797 DOI: 10.3390/ma17163980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/08/2024] [Accepted: 08/08/2024] [Indexed: 09/03/2024]
Abstract
Mechanochromic materials provide optical changes in response to mechanical stress and are of interest in a wide range of potential applications such as strain sensing, structural health monitoring, and encryption. Advanced manufacturing such as 3D printing enables the fabrication of complex patterns and geometries. In this work, classes of stretchable mechanochromic materials that provide visual color changes when tension is applied, namely, dyes, polymer dispersed liquid crystals, liquid crystal elastomers, cellulose nanocrystals, photonic nanostructures, hydrogels, and hybrid systems (combinations of other classes) are reviewed. For each class, synthesis and processing, as well as the mechanism of color change are discussed. To enable materials selection across the classes, the mechanochromic sensitivity of the different classes of materials are compared. Photonic systems demonstrate high mechanochromic sensitivity (Δnm/% strain), large dynamic color range, and rapid reversibility. Further, the mechanochromic behavior can be predicted using a simple mechanical model. Photonic systems with a wide range of mechanical properties (elastic modulus) have been achieved. The addition of dyes to photonic systems has broadened the dynamic range, i.e., the strain over which there is an optical change. For applications in which irreversible color change is desired, dye-based systems or liquid crystal elastomer systems can be formulated. While many promising applications have been demonstrated, manufacturing uniform color on a large scale remains a challenge. Standardized characterization methods are needed to translate materials to practical applications. The sustainability of mechanochromic materials is also an important consideration.
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Affiliation(s)
- Christina Tang
- Chemical and Life Science Engineering Department, Virginia Commonwealth University, Richmond, VA 23284, USA
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3
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Li F, Song B, Luo R, Zhou Y, Xiong R, Zhang X, Xu W. Hierarchical Assembly of Patternable Chiroptical Biotextiles with Extreme Environment Stability. ACS NANO 2023; 17:22591-22600. [PMID: 37929926 DOI: 10.1021/acsnano.3c06463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Flexible photonic textiles constructed by sustainable cholesteric organization are very promising to achieve a combination of chiroptical structural colors, mechanical robustness, sustainability, and environment stability. However, the efficient assembly of well-ordered cholesteric nanoarchitectures on flexible textiles in a scalable and patternable manner remains a grand challenge. In this study, we develop an efficient and scalable approach to construct large area chiroptical biotextiles using renewable and bioenabled cellulose nanocrystals (CNCs) as building blocks. This hierarchical assembly enables cholesteric photonic CNCs "cast" in situ, in a seamlessly tessellated design, onto topography-tailored textiles to form a strong interlocked multilayered structure. The resulting hierarchical architecture not only comprises strong photonic-photonic coupling to synergistically enhance the chiroptical properties with tunable wavelengths but also leads to impressive mechanical and optical stability against external mechanical forces and extreme environments. More importantly, through regulating the localized photonic band of the preformed chiroptical textiles by small molecules (e.g., water and glucose), customized colored patterns can be easily generated in large scale that are highly responsive to multistimuli, including chiral polarized light, view angle, and solvent. This chiroptical biotextile is a promising next-generation biomimetic photonic material for defense, aviation, and marine and aerospace special applications.
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Affiliation(s)
- Fangling Li
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Baiqi Song
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Richu Luo
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Yi Zhou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Rui Xiong
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China
| | - Xiaofang Zhang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Weilin Xu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
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4
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Fakharuddin A, Li H, Di Giacomo F, Zhang T, Gasparini N, Elezzabi AY, Mohanty A, Ramadoss A, Ling J, Soultati A, Tountas M, Schmidt‐Mende L, Argitis P, Jose R, Nazeeruddin MK, Mohd Yusoff ARB, Vasilopoulou M. Fiber‐Shaped Electronic Devices. ADVANCED ENERGY MATERIALS 2021; 11. [DOI: 10.1002/aenm.202101443] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Indexed: 09/02/2023]
Abstract
AbstractTextile electronics embedded in clothing represent an exciting new frontier for modern healthcare and communication systems. Fundamental to the development of these textile electronics is the development of the fibers forming the cloths into electronic devices. An electronic fiber must undergo diverse scrutiny for its selection for a multifunctional textile, viz., from the material selection to the device architecture, from the wearability to mechanical stresses, and from the environmental compatibility to the end‐use management. Herein, the performance requirements of fiber‐shaped electronics are reviewed considering the characteristics of single electronic fibers and their assemblies in smart clothing. Broadly, this article includes i) processing strategies of electronic fibers with required properties from precursor to material, ii) the state‐of‐art of current fiber‐shaped electronics emphasizing light‐emitting devices, solar cells, sensors, nanogenerators, supercapacitors storage, and chromatic devices, iii) mechanisms involved in the operation of the above devices, iv) limitations of the current materials and device manufacturing techniques to achieve the target performance, and v) the knowledge gap that must be minimized prior to their deployment. Lessons learned from this review with regard to the challenges and prospects for developing fiber‐shaped electronic components are presented as directions for future research on wearable electronics.
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Affiliation(s)
| | - Haizeng Li
- Institute of Frontier and Interdisciplinarity Science Shandong University Qingdao 266237 China
| | - Francesco Di Giacomo
- Centre for Hybrid and Organic Solar Energy (CHOSE) Department of Electronic Engineering University of Rome Tor Vergata Rome 00133 Italy
| | - Tianyi Zhang
- Department of Chemistry and Centre for Processable Electronics Imperial College London London W120BZ UK
| | - Nicola Gasparini
- Department of Chemistry and Centre for Processable Electronics Imperial College London London W120BZ UK
| | - Abdulhakem Y. Elezzabi
- Ultrafast Optics and Nanophotonics Laboratory Department of Electrical and Computer Engineering University of Alberta Edmonton Alberta T6G 2V4 Canada
| | - Ankita Mohanty
- School for Advanced Research in Petrochemicals Laboratory for Advanced Research in Polymeric Materials Central Institute of Petrochemicals Engineering and Technology Bhubaneswar Odisha 751024 India
| | - Ananthakumar Ramadoss
- School for Advanced Research in Petrochemicals Laboratory for Advanced Research in Polymeric Materials Central Institute of Petrochemicals Engineering and Technology Bhubaneswar Odisha 751024 India
| | - JinKiong Ling
- Nanostructured Renewable Energy Material Laboratory Faculty of Industrial Sciences and Technology Universiti Malaysia Pahang Pahang Darul Makmur Kuantan 26300 Malaysia
| | - Anastasia Soultati
- Institute of Nanoscience and Nanotechnology National Center for Scientific Research Demokritos Agia Paraskevi Attica 15341 Greece
| | - Marinos Tountas
- Department of Electrical and Computer Engineering Hellenic Mediterranean University Estavromenos Heraklion Crete GR‐71410 Greece
| | | | - Panagiotis Argitis
- Institute of Nanoscience and Nanotechnology National Center for Scientific Research Demokritos Agia Paraskevi Attica 15341 Greece
| | - Rajan Jose
- Nanostructured Renewable Energy Material Laboratory Faculty of Industrial Sciences and Technology Universiti Malaysia Pahang Pahang Darul Makmur Kuantan 26300 Malaysia
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL) Rue de l'Industrie 17 Sion CH‐1951 Switzerland
| | - Abd Rashid Bin Mohd Yusoff
- Department of Chemical Engineering Pohang University of Science and Technology (POSTECH) Pohang Gyeongbuk 37673 Republic of Korea
| | - Maria Vasilopoulou
- Institute of Nanoscience and Nanotechnology National Center for Scientific Research Demokritos Agia Paraskevi Attica 15341 Greece
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5
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Cheng J, Zhang L, Zhao K, Wang Y, Cao X, Zhang S, Niu W. Flexible Multifunctional Photonic Crystal Fibers with Shape Memory Capability for Optical Waveguides and Electrical Sensors. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jie Cheng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Lele Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Kai Zhao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Yunpeng Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Xianfei Cao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
| | - Wenbin Niu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian 116024, China
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6
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Clough JM, Weder C, Schrettl S. Mechanochromism in Structurally Colored Polymeric Materials. Macromol Rapid Commun 2020; 42:e2000528. [PMID: 33210385 DOI: 10.1002/marc.202000528] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/02/2020] [Indexed: 01/03/2023]
Abstract
Mechanochromic effects in structurally colored materials are the result of deformation-induced changes to their ordered nanostructures. Polymeric materials which respond in this way to deformation offer an attractive combination of characteristics, including continuous strain sensing, high strain resolution, and a wide strain-sensing range. Such materials are potentially useful for a wide range of applications, which extend from pressure-sensing bandages to anti-counterfeiting devices. Focusing on the materials design aspects, recent developments in this field are summarized. The article starts with an overview of different approaches to achieve mechanochromic effects in structurally colored materials, before the physical principles governing the interaction of light with each of these materials types are summarized. Diverse methodologies to prepare these polymers are then discussed in detail, and where applicable, naturally occurring materials that inspired the design of artificial systems are discussed. The capabilities and limitations of structurally colored materials in reporting and visualizing mechanical deformation are examined from a general standpoint and also in more specific technological contexts. To conclude, current trends in the field are highlighted and possible future opportunities are identified.
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Affiliation(s)
- Jess M Clough
- Adolphe Merkle Institute, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Stephen Schrettl
- Adolphe Merkle Institute, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
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7
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Hsieh CH, Lu YC, Yang H. Self-Assembled Mechanochromic Shape Memory Photonic Crystals by Doctor Blade Coating. ACS APPLIED MATERIALS & INTERFACES 2020; 12:36478-36484. [PMID: 32672930 DOI: 10.1021/acsami.0c07410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mechanochromic shape memory photonic crystals can memorize their original structures and recover the inherent structural colors in response to external stimuli; thereby they have rendered various important optical applications. Unfortunately, most existing shape memory polymers are thermoresponsive, and the corresponding mechanochromic characteristics are limited by the heat-demanding programming process. Besides that, a great majority of current fabrication methodologies suffer from low throughput, hindering the practical applications. Herein, a scalable technology is developed to engineer macroporous shape memory photonic crystals by self-assembling silica colloidal crystals in a polyurethane acrylate/polyethoxylated trimethylolpropane triacrylate/poly(ethylene glycol) diacrylate matrix, followed by a wet etching treatment to selectively remove silica colloids. The as-created photonic crystals display a brilliant structural color, which is reversibly tunable with mechanical deformation at ambient conditions. Upon stretching, the reduced interlayer lattice spacing of the photonic crystals leads to a blueshift of the reflection peak position and a significant color change. Importantly, the stretched macroporous film can fix its temporary structures without applying any contact force and simultaneously recover its original configuration and appearance by applying ethanol evaporation-induced capillary pressures. The reversibility and the dependence of templated silica colloid size on mechanochromic characteristics have also been investigated in the research.
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Affiliation(s)
- Chia-Hua Hsieh
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan
| | - Yi-Cheng Lu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan
| | - Hongta Yang
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan
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8
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Fu Y, Wang Y, Chen D, Yu Z, Zheng J, Zhou H. Three-Dimensional Photonic Crystal Bulks with Outstanding Mechanical Performance Assembled by Thermoforming-Etching Cross-linked Polymer Microspheres. ACS APPLIED MATERIALS & INTERFACES 2020; 12:35311-35317. [PMID: 32635711 DOI: 10.1021/acsami.0c04723] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Traditional self-assembly methods for photonic crystals (PCs) limited by poor mechanical performance and microstructure defects make it hard to be directly applied to optical devices, whose performance strongly rely on mechanical performance and microstructure of PCs. Here, a thermoforming-etching strategy combining both traditional processing and nanofabrication is reported to develop cross-linked polystyrene microsphere-based PC bulks with outstanding mechanical performance. It illustrates scientific principles, where surface molecular chains of PS microspheres were activated and entangled with each other under thermoforming conditions (200 °C; 220 MPa), resulting in applicable mechanical strength (hardness and modulus reach 0.12 and 4.12 GPa, respectively). The optimum optical reflectivity of the PS microsphere-based (180 nm) PC bulk is 49.4% at 381 nm. Furthermore, these PC bulks have been successfully written in anti-counterfeiting and realized colorful pattern printing. The innovative method opens a new route for the rapid and simple fabrication of the nanoparticle structure which can be used as various functional devices and directly promotes the industrialization of bulk PC devices, such as optical and display devices, and so forth.
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Affiliation(s)
- Yue Fu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yunming Wang
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dan Chen
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhaohan Yu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiaqi Zheng
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Huamin Zhou
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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9
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Taki M, Yamashita T, Yatabe K, Vogel V. Mechano-chromic protein-polymer hybrid hydrogel to visualize mechanical strain. SOFT MATTER 2019; 15:9388-9393. [PMID: 31609367 DOI: 10.1039/c9sm00380k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In a proof-of-concept study, a mechano-chromic hydrogel was synthesized here, via chemoenzymatic click conjugation of fluorophore-labeled fibronectin into a synthetic hydrogel co-polymers (i.e., poly-N-isopropylacrylamide/polyethylene glycol). The optical FRET response could be tuned by macroscopic stretch.
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Affiliation(s)
- Masumi Taki
- Laboratory of Applied Mechanobiology, Department of Health Sciences and Technology, ETH Zürich, Vladimir-Prelog-Weg 4, 8093 Zürich, Switzerland.
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10
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Zheng X, Wang Q, Luan J, Li Y, Wang N, Zhang R. Angle-dependent structural colors in a nanoscale-grating photonic crystal fabricated by reverse nanoimprint technology. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1211-1216. [PMID: 31293858 PMCID: PMC6604731 DOI: 10.3762/bjnano.10.120] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 05/27/2019] [Indexed: 05/18/2023]
Abstract
The structural color of angle-sensitive photonic crystals has attracted great interest because of a possible application in visual sensors. The appearance of a photonic crystal is mainly influenced by the optical properties, structural parameters and the observation angle. In this work, an angle-sensitive photonic crystal with nanoscale gratings was fabricated through reverse nanoimprint lithography. The periodicity and the structural color were investigated through measuring reflection spectra. The structural color of the photonic crystal has a period of 90°. Distinctive colors spanning the entire visible spectrum can be seen when the crystal is rotated. In addition, there is a blue-shift of the peak wavelength when the observation angle is increased. An equation for the observed wavelength as a function of the observation angle is proposed.
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Affiliation(s)
- Xu Zheng
- Institue of NanoEngineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590 Shandong, China
| | - Qing Wang
- Institue of NanoEngineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590 Shandong, China
| | - Jinjin Luan
- Institue of NanoEngineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590 Shandong, China
| | - Yao Li
- Institue of NanoEngineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590 Shandong, China
| | - Ning Wang
- Institue of NanoEngineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590 Shandong, China
| | - Rui Zhang
- Institue of NanoEngineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, 266590 Shandong, China
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11
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Meng X, Pan H, Lu T, Chen Z, Chen Y, Zhang D, Zhu S. Photonic-structured fibers assembled from cellulose nanocrystals with tunable polarized selective reflection. NANOTECHNOLOGY 2018; 29:325604. [PMID: 29757154 DOI: 10.1088/1361-6528/aac44b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fibers with self-assembled photonic structures are of special interest due to their unique photonic properties and potential applications in the smart textile industry. Inspired by nature, the photonic-structured fibers were fabricated through the self-assembly of chiral nematic cellulose nanocrystals (CNCs) and the fibers showed tunably brilliant and selectively reflected colors under crossed-polarization. A simple wet-spinning method was applied to prepare composite fibers of the mixed CNC matrix and polyvinyl alcohol (PVA) additions. During the processing, a cholesteric CNC phase formed photonic fibers through a self-assembly process. The selective color reflection of the composite fibers in the polarized condition showed a typical red-shift tendency with an increase in the PVA content, which was attributed to the increased helical pitch of the CNC. Furthermore, the polarized angle could also alter the reflected colors. Owing to their excellent selective reflection properties under the polarized condition, CNC-based photonic fibers are promising as the next-generation of smart fibers, applied in the fields of specific display and sensing.
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Affiliation(s)
- Xin Meng
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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12
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Structural Coloration of Polyester Fabrics Coated with Al/TiO₂ Composite Films and Their Anti-Ultraviolet Properties. MATERIALS 2018; 11:ma11061011. [PMID: 29904008 PMCID: PMC6025557 DOI: 10.3390/ma11061011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/06/2018] [Accepted: 06/11/2018] [Indexed: 12/24/2022]
Abstract
Al/TiO2 composite film was successfully deposited on polyester fabrics by using magnetron sputtering techniques. X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) were used to examine the deposited films on the fabrics, and the structural colors and anti-ultraviolet property of fabrics were also analyzed. The results indicated that polyester fabrics coated with Al/TiO2 composite films achieved structural colors. The reactive sputtering times of TiO2 films in Al/TiO2 composite films were 10 min, 12 min, 18 min, 20 min, 26 min, 27 min, 30 min and 45 min, respectively, the colors of corresponding fabrics were bluish violet, blue, cyan, green, yellow, yellowish red, orange and blue-green, which was consistent with the principle of the thin film interference. The structure of the TiO2 film in Al/TiO2 composite films was non-crystalline, though the fabrics were heated and maintained at the temperature of 200 °C. The anti-ultraviolet property of the fabrics deposited with Al/TiO2 composite films were excellent because of the effect of Al/TiO2 composite films.
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13
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Zhang L, Liu F, Sun X, Wei GF, Tian Y, Liu ZP, Huang R, Yu Y, Peng H. Engineering Carbon Nanotube Fiber for Real-Time Quantification of Ascorbic Acid Levels in a Live Rat Model of Alzheimer’s Disease. Anal Chem 2017; 89:1831-1837. [DOI: 10.1021/acs.analchem.6b04168] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Limin Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P. R. China
| | - Fangling Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P. R. China
| | - Xuemei Sun
- State Key Laboratory of Molecular Engineering of Polymers,
Department of Macromolecular Science and Laboratory of Advanced Materials,
and Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
| | - Guang-feng Wei
- State Key Laboratory of Molecular Engineering of Polymers,
Department of Macromolecular Science and Laboratory of Advanced Materials,
and Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical
Processes, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai, 200062, P. R. China
| | - Zhi-pan Liu
- State Key Laboratory of Molecular Engineering of Polymers,
Department of Macromolecular Science and Laboratory of Advanced Materials,
and Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
| | - Rong Huang
- Key
Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai, 200062, P. R. China
| | - Yanyan Yu
- Jiangsu Key Laboratory of New Drug Research
and Clinical Pharmacy, Xuzhou Medical College, Xuzhou, Jiangsu 221004, P.R. China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers,
Department of Macromolecular Science and Laboratory of Advanced Materials,
and Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China
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14
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Liu P, Xie Z, Zheng F, Zhao Y, Gu Z. Surfactant-free HEMA crystal colloidal paint for structural color contact lens. J Mater Chem B 2016; 4:5222-5227. [DOI: 10.1039/c6tb01089j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new type of structural color paint was fabricated by dispersing poly(methyl methacrylate-hydroxyethyl methacrylate) (PMH) nanoparticles in 2-hydroxyethyl methacrylate (HEMA) solvent without additional surfactants. The paints then were directly cast to form structural color contact lenses by UV polymerization in moulds.
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Affiliation(s)
- Panmiao Liu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Zhuoying Xie
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Fuyin Zheng
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| |
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