51
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Appold M, Bareuther J, Gallei M. Anionic Grafting to Strategies for Functional Polymethacrylates: Convenient Preparation of Stimuli‐Responsive Block Copolymer Architectures. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Appold
- Ernst‐Berl‐Institue for Chemical Engineering and Macromolecular ChemistryTechnische Universität Darmstadt Alarich‐Weiss‐Str. 4 64287 Darmstadt Germany
| | - Jennifer Bareuther
- Ernst‐Berl‐Institue for Chemical Engineering and Macromolecular ChemistryTechnische Universität Darmstadt Alarich‐Weiss‐Str. 4 64287 Darmstadt Germany
| | - Markus Gallei
- Ernst‐Berl‐Institue for Chemical Engineering and Macromolecular ChemistryTechnische Universität Darmstadt Alarich‐Weiss‐Str. 4 64287 Darmstadt Germany
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52
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Kim DY, Choi S, Cho H, Sun JY. Electroactive Soft Photonic Devices for the Synesthetic Perception of Color and Sound. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1804080. [PMID: 30417439 DOI: 10.1002/adma.201804080] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/18/2018] [Indexed: 05/28/2023]
Abstract
Color, as perceived through the eye, transcends mere information in the visible range of electromagnetism and serves as an agent for communication and entertainment. Mechanochromic systems have thus far only aimed at satisfying the sense of vision and have overlooked the possibility of generating acoustic vibrations in concert with their visual color responses that would enable the simultaneous satisfaction of the auditory system. Transcending the boundaries of the two senses (i.e., sound and color), herein a strategy for their concurrent and synesthetic fulfillment is elucidated by electrically actuating an organogel photonic device, controlled by a single input signal. This new class of devices that integrate a color module with a speaker is fabricated from a mechanochromic layer that comprises close-packed photonic lattice with an organogel matrix pervading the void fraction. Exploiting a dielectric elastomer actuator, the system's mechanical response permits the simultaneous, yet independent, exploration of visible-light reflection alongside audible sound-wave generation. Large areal strains at low frequencies of actuation tune the photonic stop-band, whereas the layer remains incompressible and exhibits negligible strain when actuated at higher frequencies (e.g., tens of Hz), thereby making it amenable to modulate sound and color simultaneously yet independently.
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Affiliation(s)
- Do Yoon Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-742, South Korea
| | - Sunglok Choi
- IT Convergence Technology Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon, 34129, South Korea
| | - Hyesung Cho
- Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA
| | - Jeong-Yun Sun
- Department of Materials Science and Engineering, Seoul National University, Seoul, 151-742, South Korea
- Research Institute of Advanced Materials, Seoul National University, Seoul, 1510744, South Korea
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53
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van Heeswijk EPA, Kragt AJJ, Grossiord N, Schenning APHJ. Environmentally responsive photonic polymers. Chem Commun (Camb) 2019; 55:2880-2891. [DOI: 10.1039/c8cc09672d] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This feature article focuses on photonic polymers that change colouration due to an environmental stimulus and highlights their industrial feasibility.
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Affiliation(s)
- Ellen P. A. van Heeswijk
- Stimuli-responsive Functional Materials and Devices
- Department of Chemical Engineering
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Augustinus J. J. Kragt
- Stimuli-responsive Functional Materials and Devices
- Department of Chemical Engineering
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Nadia Grossiord
- SABIC
- T&I, Plasticslaan 1
- 4612 PX Bergen op Zoom
- The Netherlands
| | - Albertus P. H. J. Schenning
- Stimuli-responsive Functional Materials and Devices
- Department of Chemical Engineering
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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54
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Wang Q, Gu KH, Zhang Z, Hou P, Shen Z, Fan XH. Morphologies and photonic properties of an asymmetric brush block copolymer with polystyrene and polydimethylsiloxane side chains. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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55
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Hong Y, Zhao D, Liu D, Ma B, Yao G, Li Q, Han A, Qiu M. Three-Dimensional in Situ Electron-Beam Lithography Using Water Ice. NANO LETTERS 2018; 18:5036-5041. [PMID: 29940114 DOI: 10.1021/acs.nanolett.8b01857] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Three-dimensional (3D) nanofabrication techniques are of paramount importance in nanoscience and nanotechnology because they are prerequisites to realizing complex, compact, and functional 3D nanodevices. Although several 3D nanofabrication methods have been proposed and developed in recent years, it is still a formidable challenge to achieve a balance among resolution, accuracy, simplicity, and adaptability. Here, we propose a 3D nanofabrication method based on electron-beam lithography using ice resists (iEBL) and fabricate 3D nanostructures by stacking layered structures and those with dose-modulated exposure, respectively. The entire process of 3D nanofabrication is realized in one vacuum system by skipping the spin-coating and developing steps required for commonly used resists. This needs far fewer processing steps and is contamination-free compared with conventional methods. With in situ alignment and correction in the iEBL process, a pattern resolution of 20 nm and an alignment error below 100 nm can be steadily achieved. This 3D nanofabrication technique using ice thus shows great potential in the fabrication of complicated 3D nanodevices.
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Affiliation(s)
- Yu Hong
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , PR China
| | - Ding Zhao
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , PR China
| | - Dongli Liu
- Institute of Advanced Technology, Westlake Institute for Advanced Study , Westlake University , Hangzhou 310024 , PR China
| | - Binze Ma
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , PR China
| | - Guangnan Yao
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , PR China
| | - Qiang Li
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , PR China
| | - Anpan Han
- DTU Danchip/Cen , Technical University of Denmark , Kongens Lyngby 2800 , Denmark
| | - Min Qiu
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , PR China
- Institute of Advanced Technology, Westlake Institute for Advanced Study , Westlake University , Hangzhou 310024 , PR China
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56
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Gao C, Slesarenko V, Boyce MC, Rudykh S, Li Y. Instability-Induced Pattern Transformation in Soft Metamaterial with Hexagonal Networks for Tunable Wave Propagation. Sci Rep 2018; 8:11834. [PMID: 30087416 PMCID: PMC6081427 DOI: 10.1038/s41598-018-30381-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 07/16/2018] [Indexed: 11/25/2022] Open
Abstract
Instability-induced pattern transformations of the architectured multi-phase soft metamaterial under bi-axial compression were explored. The soft metamaterial is composed of two phases: a soft matrix and a reinforcing hexagonal network embedded in the matrix. Equi-biaxial loading is found to induce both micro- and macro- instabilities in the networked architecture. Two types of instability patterns were observed, dependent upon the architecture geometry and the material combination. The critical strain for triggering instability and the two resulting types of patterns was derived, and a theoretical criterion for the transition between the two patterns was determined. Type I patterns retain the original periodicity of the architecture but wrinkles the network walls whereas Type II patterns transform the overall periodicity of the architecture while bending the network walls. Elastic wave propagation analysis was performed for the two distinct patterns under both stressed and stress-free conditions: a change in band gaps is found for both instability-induced pattern transformations, but differs for each type due to their dramatic difference in structure transformation (i.e. Type I wall wrinkling vs. Type II periodicity switching). The distinguished mechanical behavior and the rich properties of this category of multi-phase soft metamaterial can be used to design new smart materials with switchable functionalities controllable by deformation.
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Affiliation(s)
- Chao Gao
- Department of Mechanical Engineering, University of New Hampshire, Durham, NH, USA
| | - Viacheslav Slesarenko
- Faculty of Aerospace Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - Mary C Boyce
- School of Engineering and Applied Science, Columbia University, New York, 10027, USA.
| | - Stephan Rudykh
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA.
| | - Yaning Li
- Department of Mechanical Engineering, University of New Hampshire, Durham, NH, USA.
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57
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Winter T, Su X, Hatton TA, Gallei M. Ferrocene-Containing Inverse Opals by Melt-Shear Organization of Core/Shell Particles. Macromol Rapid Commun 2018; 39:e1800428. [DOI: 10.1002/marc.201800428] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 06/21/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Tamara Winter
- Ernst-Berl Institut für Technische und Makromolekulare Chemie; Technische Universität Darmstadt; Alarich-Weiss-Straße 4 64287 Darmstadt Germany
| | - Xiao Su
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139 USA
| | - T. Alan Hatton
- Department of Chemical Engineering; Massachusetts Institute of Technology; Cambridge MA 02139 USA
| | - Markus Gallei
- Ernst-Berl Institut für Technische und Makromolekulare Chemie; Technische Universität Darmstadt; Alarich-Weiss-Straße 4 64287 Darmstadt Germany
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58
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Transmitting and scattering colors of porous particles of poly(vinyl chloride) based on Christiansen effect. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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59
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Goerlitzer ESA, Klupp Taylor RN, Vogel N. Bioinspired Photonic Pigments from Colloidal Self-Assembly. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706654. [PMID: 29733481 DOI: 10.1002/adma.201706654] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/17/2018] [Indexed: 05/23/2023]
Abstract
The natural world is a colorful environment. Stunning displays of coloration have evolved throughout nature to optimize camouflage, warning, and communication. The resulting flamboyant visual effects and remarkable dynamic properties, often caused by an intricate structural design at the nano- and microscale, continue to inspire scientists to unravel the underlying physics and to recreate the observed effects. Here, the methodologies to create bioinspired photonic pigments using colloidal self-assembly approaches are considered. The physics governing the interaction of light with structural features and natural examples of structural coloration are briefly introduced. It is then outlined how the self-assembly of colloidal particles, acting as wavelength-scale building blocks, can be particularly useful to replicate coloration from nature. Different coloration effects that result from the defined structure of the self-assembled colloids are introduced and it is highlighted how these optical properties can be translated into photonic pigments by modifications of the assembly processes. The importance of absorbing elements, as well as the role of surface chemistry and wettability to control structural coloration is discussed. Finally, approaches to integrate dynamic control of coloration into such self-assembled photonic pigments are outlined.
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Affiliation(s)
- Eric S A Goerlitzer
- Institute of Particle Technology and Advanced Materials and Processes Master Programme, Friedrich-Alexander University Erlangen-Nürnberg, 91058, Erlangen, Germany
| | - Robin N Klupp Taylor
- Institute of Particle Technology and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander University Erlangen-Nürnberg, 91058, Erlangen, Germany
| | - Nicolas Vogel
- Institute of Particle Technology and Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander University Erlangen-Nürnberg, 91058, Erlangen, Germany
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60
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Appold M, Grune E, Frey H, Gallei M. One-Step Anionic Copolymerization Enables Formation of Linear Ultrahigh-Molecular-Weight Block Copolymer Films Featuring Vivid Structural Colors in the Bulk State. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18202-18212. [PMID: 29737829 DOI: 10.1021/acsami.8b02848] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ultrahigh-molecular-weight (UHMW) tapered block copolymers (BCPs) consisting of polyisoprene- block-poly(4-methylstyrene) featuring overall molar masses in the range of 1101-2033 kg mol-1 ( Mw) are synthesized via a convenient one-step anionic copolymerization protocol. The obtained UHMW BCPs are investigated by differential scanning calorimetry, size exclusion chromatography, and 1H NMR spectroscopy. Microphase separation for the UHMW BCPs in the bulk state is investigated by transmission electron microscopy (TEM) measurements and scanning electron microscopy (SEM), revealing well-ordered lamellar and spherical domains with large domain sizes in the range of 100-200 nm. Excellent order and periodicity are observed for lamellar morphologies over large film areas of 90 × 120 μm. Because of this high order of the underlying domains and the different refractive indices of the block segments, vivid structural colors can be observed in the bulk state. Structural colors of BCP films are investigated by angle-dependent UV/vis measurements, revealing intensive reflection colors according to Bragg's law of diffraction. The optical characteristics are directly correlated to TEM and SEM results. Moreover, colored BCP films featuring spherical domains for one block segment with domain sizes of 97-122 nm revealed blue structural colors stemming from disordered particle scattering.
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Affiliation(s)
- Michael Appold
- Ernst-Berl-Institute for Chemical Engineering and Macromolecular Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 4 , 64287 Darmstadt , Germany
| | - Eduard Grune
- Institute of Organic Chemistry , Johannes Gutenberg-University Mainz , Duesbergweg 10-14 , 55128 Mainz , Germany
- Graduate School of Excellence Materials Science in Mainz (MAINZ) , Staudingerweg 9 , 55128 Mainz , Germany
| | - Holger Frey
- Institute of Organic Chemistry , Johannes Gutenberg-University Mainz , Duesbergweg 10-14 , 55128 Mainz , Germany
| | - Markus Gallei
- Ernst-Berl-Institute for Chemical Engineering and Macromolecular Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 4 , 64287 Darmstadt , Germany
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61
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Sarkar S, Lin‐Gibson S. Computational Design of Photocured Polymers Using Stochastic Reaction–Diffusion Simulation. ADVANCED THEORY AND SIMULATIONS 2018. [DOI: 10.1002/adts.201800028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Swarnavo Sarkar
- Biosystems and Biomaterials Division National Institute of Standards and Technology Gaithersburg MD 20899 USA
| | - Sheng Lin‐Gibson
- Biosystems and Biomaterials Division National Institute of Standards and Technology Gaithersburg MD 20899 USA
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62
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Prasad I, Jinnai H, Ho RM, Thomas EL, Grason GM. Anatomy of triply-periodic network assemblies: characterizing skeletal and inter-domain surface geometry of block copolymer gyroids. SOFT MATTER 2018; 14:3612-3623. [PMID: 29683466 DOI: 10.1039/c8sm00078f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Triply-periodic networks (TPNs), like the well-known gyroid and diamond network phases, abound in soft matter assemblies, from block copolymers (BCPs), lyotropic liquid crystals and surfactants to functional architectures in biology. While TPNs are, in reality, volume-filling patterns of spatially-varying molecular composition, physical and structural models most often reduce their structure to lower-dimensional geometric objects: the 2D interfaces between chemical domains; and the 1D skeletons that thread through inter-connected, tubular domains. These lower-dimensional structures provide a useful basis of comparison to idealized geometries based on triply-periodic minimal, or constant-mean curvature surfaces, and shed important light on the spatially heterogeneous packing of molecular constituents that form the networks. Here, we propose a simple, efficient and flexible method to extract a 1D skeleton from 3D volume composition data of self-assembled networks. We apply this method to both self-consistent field theory predictions as well as experimental electron microtomography reconstructions of the double-gyroid phase of an ABA triblock copolymer. We further demonstrate how the analysis of 1D skeleton, 2D inter-domain surfaces, and combinations therefore, provide physical and structural insight into TPNs, across multiple length scales. Specifically, we propose and compare simple measures of network chirality as well as domain thickness, and analyze their spatial and statistical distributions in both ideal (theoretical) and non-ideal (experimental) double gyroid assemblies.
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Affiliation(s)
- Ishan Prasad
- Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Hiroshi Jinnai
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Rong-Ming Ho
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Edwin L Thomas
- Department of Material Science and Nano Engineering, Rice University, Houston, TX 77005, USA
| | - Gregory M Grason
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.
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63
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Vatankhah-Varnosfaderani M, Keith AN, Cong Y, Liang H, Rosenthal M, Sztucki M, Clair C, Magonov S, Ivanov DA, Dobrynin AV, Sheiko SS. Chameleon-like elastomers with molecularly encoded strain-adaptive stiffening and coloration. Science 2018; 359:1509-1513. [PMID: 29599240 DOI: 10.1126/science.aar5308] [Citation(s) in RCA: 224] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 01/30/2018] [Indexed: 12/19/2022]
Abstract
Active camouflage is widely recognized as a soft-tissue feature, and yet the ability to integrate adaptive coloration and tissuelike mechanical properties into synthetic materials remains elusive. We provide a solution to this problem by uniting these functions in moldable elastomers through the self-assembly of linear-bottlebrush-linear triblock copolymers. Microphase separation of the architecturally distinct blocks results in physically cross-linked networks that display vibrant color, extreme softness, and intense strain stiffening on par with that of skin tissue. Each of these functional properties is regulated by the structure of one macromolecule, without the need for chemical cross-linking or additives. These materials remain stable under conditions characteristic of internal bodily environments and under ambient conditions, neither swelling in bodily fluids nor drying when exposed to air.
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Affiliation(s)
| | - Andrew N Keith
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yidan Cong
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Heyi Liang
- Department of Polymer Science, University of Akron, Akron, OH, 44325-3909, USA
| | - Martin Rosenthal
- European Synchrotron Radiation Facility, F-38043 Grenoble, France
| | - Michael Sztucki
- European Synchrotron Radiation Facility, F-38043 Grenoble, France
| | - Charles Clair
- Université de Haute Alsace, Laboratoire de Physique et Mécanique Textiles, F-68093 Mulhouse Cedex, France
| | - Sergei Magonov
- Scanning Probe Microscopy (SPM) Labs, Tempe, AZ 85283, USA
| | - Dimitri A Ivanov
- Institut de Sciences des Matériaux de Mulhouse-IS2M, CNRS UMR 7361, F-68057 Mulhouse, France.,Lomonosov Moscow State University, Faculty of Fundamental Physical and Chemical Engineering, Leninskie Gory 1/51, 119991 Moscow, Russian Federation
| | - Andrey V Dobrynin
- Department of Polymer Science, University of Akron, Akron, OH, 44325-3909, USA.
| | - Sergei S Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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64
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Song DP, Jacucci G, Dundar F, Naik A, Fei HF, Vignolini S, Watkins JJ. Photonic Resins: Designing Optical Appearance via Block Copolymer Self-Assembly. Macromolecules 2018; 51:2395-2400. [PMID: 29681653 PMCID: PMC5905989 DOI: 10.1021/acs.macromol.7b02288] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 03/09/2018] [Indexed: 01/27/2023]
Abstract
Despite a huge variety of methodologies having been proposed to produce photonic structures by self-assembly, the lack of an effective fabrication approach has hindered their practical uses. These approaches are typically limited by the poor control in both optical and mechanical properties. Here we report photonic thermosetting polymeric resins obtained through brush block copolymer (BBCP) self-assembly. We demonstrate that the control of the interplay between order and disorder in the obtained photonic structure offers a powerful tool box for designing the optical appearance of the polymer resins in terms of reflected wavelength and scattering properties. The obtained materials exhibit excellent mechanical properties with hardness up to 172 MPa and Young's modulus over 2.9 GPa, indicating great potential for practical uses as photonic coatings on a variety of surfaces.
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Affiliation(s)
- Dong-Po Song
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Gianni Jacucci
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Feyza Dundar
- Department
of Polymer Science and Engineering, University
of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Aditi Naik
- Department
of Polymer Science and Engineering, University
of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Hua-Feng Fei
- Department
of Polymer Science and Engineering, University
of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Silvia Vignolini
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - James J. Watkins
- Department
of Polymer Science and Engineering, University
of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
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65
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Wu CS, Tsai PY, Wang TY, Lin EL, Huang YC, Chiang YW. Flexible or Robust Amorphous Photonic Crystals from Network-Forming Block Copolymers for Sensing Solvent Vapors. Anal Chem 2018. [PMID: 29514454 DOI: 10.1021/acs.analchem.8b00326] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Large-area and flexible amorphous photonic crystals (APCs) featuring interconnected network microstructures are fabricated using high-molecular-weight polystyrene- block-poly(methyl methacrylate) (PS-PMMA) block copolymers. Kinetically controlled microphase separation combining with synergistic weak incompatibility gives rise to short-range-order network microstructures, exhibiting noniridescent optical properties. Solubility-dependent solvatochromism with distinct responses to various organic solvent vapors is observed in the network-forming APC film. By taking advantage of photodegradation of the PMMA block, nanoporous network-forming films were prepared for subsequent template synthesis of robust SiO2- and TiO2-based APC films through sol-gel reaction. Consequently, refractive index contrast of the APC film was able to be manipulated, resulting in intensely enhanced reflectivity and increased response rate for detecting solvent vapor. With the integration of self-assembly and photolithography approaches, flexible and robust network-forming APC films with well-defined photopatterned textures are carried out. This can provide a novel means for the design of photopatterned organic or inorganic APC films for sensing solvent vapors.
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Affiliation(s)
- Cheng-Sian Wu
- Department of Materials and Optoelectronic Science , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Po-Yu Tsai
- Department of Materials and Optoelectronic Science , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Teng-Yi Wang
- Department of Materials and Optoelectronic Science , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - En-Li Lin
- Department of Materials and Optoelectronic Science , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Yen-Chang Huang
- Department of Materials and Optoelectronic Science , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
| | - Yeo-Wan Chiang
- Department of Materials and Optoelectronic Science , National Sun Yat-Sen University , Kaohsiung 80424 , Taiwan
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66
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Weng G, Thanneeru S, He J. Dynamic Coordination of Eu-Iminodiacetate to Control Fluorochromic Response of Polymer Hydrogels to Multistimuli. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30. [PMID: 29334152 DOI: 10.1002/adma.201706526] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 11/29/2017] [Indexed: 05/07/2023]
Abstract
New fluorochromic materials that reversibly change their emission properties in response to their environment are of interest for the development of sensors and light-emitting materials. A new design of Eu-containing polymer hydrogels showing fast self-healing and tunable fluorochromic properties in response to five different stimuli, including pH, temperature, metal ions, sonication, and force, is reported. The polymer hydrogels are fabricated using Eu-iminodiacetate (IDA) coordination in a hydrophilic poly(N,N-dimethylacrylamide) matrix. Dynamic metal-ligand coordination allows reversible formation and disruption of hydrogel networks under various stimuli which makes hydrogels self-healable and injectable. Such hydrogels show interesting switchable ON/OFF luminescence along with the sol-gel transition through the reversible formation and dissociation of Eu-IDA complexes upon various stimuli. It is demonstrated that Eu-containing hydrogels display fast and reversible mechanochromic response as well in hydrogels having interpenetrating polymer network. Those multistimuli responsive fluorochromic hydrogels illustrate a new pathway to make smart optical materials, particularly for biological sensors where multistimuli response is required.
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Affiliation(s)
- Gengsheng Weng
- School of Materials Science and Chemical Engineering, Ningbo Key Laboratory of Specialty Polymers, Ningbo University, Ningbo, 315211, China
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Srinivas Thanneeru
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
| | - Jie He
- Department of Chemistry, University of Connecticut, Storrs, CT, 06269, USA
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
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67
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Lin EL, Hsu WL, Chiang YW. Trapping Structural Coloration by a Bioinspired Gyroid Microstructure in Solid State. ACS NANO 2018; 12:485-493. [PMID: 29240399 DOI: 10.1021/acsnano.7b07017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In theory, gyroid photonic crystals in butterfly wings exhibit advanced optical properties as a result of their highly interconnected microstructures. Because of the difficulties in synthesizing artificial gyroid materials having periodicity corresponding to visible wavelengths, human-made visible gyroid photonic crystals are still unachievable by self-assembly. In this study, we develop a physical approach-trapping of structural coloration (TOSC)-through which the visible structural coloration of an expanded gyroid lattice in a solvated state can be preserved in the solid state, thereby allowing the fabrication of visible-wavelength gyroid photonic crystals. Through control over the diffusivity and diffusive distance for solvent evaporation, the single-molecular-weight gyroid block copolymer photonic crystal can exhibit desired structural coloration in the solid state without the need to introduce any additives, namely, evapochromism. Also, greatly enhanced reflectivity is observed arising from the formation of porous gyroid nanochannels, similar to those in butterfly wings. As a result, TOSC facilitates the fabrication of the human-made solid gyroid photonic crystal featuring tunable and switchable structural coloration without the synthesis to alter the molecular weight. It appears to be applicable in the fields of optical communication, energy, light-emission, sensors, and displays.
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Affiliation(s)
- En-Li Lin
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University , Kaohsiung 80424, Taiwan
| | - Wei-Lun Hsu
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University , Kaohsiung 80424, Taiwan
| | - Yeo-Wan Chiang
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University , Kaohsiung 80424, Taiwan
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68
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Coll A, Bermejo S, Hernández D, Castañer L. Al 2O 3/TiO 2 inverse opals from electrosprayed self-assembled templates. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:216-223. [PMID: 29441266 PMCID: PMC5789432 DOI: 10.3762/bjnano.9.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 12/21/2017] [Indexed: 06/08/2023]
Abstract
The fabrication of high optical quality inverse opals is challenging, requiring large size, three-dimensional ordered layers of high dielectric constant ratio. In this article, alumina/TiO2-air inverse opals with a 98.2% reflectivity peak at 798 nm having an area of 2 cm2 and a thickness of 17 µm are achieved using a sacrificial self-assembled structure of large thickness, which was produced with minimum fabrication errors by means of an electrospray technique. Using alumina as the first supporting layer enables the deposition of TiO2 at a higher temperature, therefore providing better optical quality.
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Affiliation(s)
- Arnau Coll
- Research Group in Micro and Nano Technologies, Electronic Engineering Department, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
| | - Sandra Bermejo
- Research Group in Micro and Nano Technologies, Electronic Engineering Department, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
| | - David Hernández
- Research Group in Micro and Nano Technologies, Electronic Engineering Department, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
| | - Luís Castañer
- Research Group in Micro and Nano Technologies, Electronic Engineering Department, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
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69
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Manfredi G, Lova P, Di Stasio F, Rastogi P, Krahne R, Comoretto D. Lasing from dot-in-rod nanocrystals in planar polymer microcavities. RSC Adv 2018; 8:13026-13033. [PMID: 35541227 PMCID: PMC9079743 DOI: 10.1039/c8ra01282b] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/01/2018] [Indexed: 11/21/2022] Open
Abstract
Colloidal nanocrystals attract considerable attention in the field of light emitting devices thanks to their high fluorescence quantum yield, low amplified spontaneous emission (ASE) threshold, and spectral tunability via electronic structure engineering and surface functionalization. Combining polymer microcavities with colloidal nanocrystals as gain material promises a solution-based fabrication route to plastic laser cavities as well as applications in the field of smart flexible large area light sources and sensors. Here we demonstrate lasing from polymer microcavities embedding solution processable dot-in-rod (DiR) CdSe/CdS nanocrystals. Two highly reflective polymer dielectric mirrors are prepared by spin-coating of alternated layers of polyacrylic acid and poly(N-vinyl carbazole), with their photonic band gap tailored to the emission of the DiRs. The DiRs are enclosed in the polymer microcavity by drop-cast deposition on one mirror, followed by pressing the mirrors onto each other. We obtain excellent overlap of the ASE band of the DiRs with the photonic band gap of the cavity and observe optically pumped lasing at 640 nm with a threshold of about 50 μJ cm−2. We report on the production of an optically pumped vertical cavity laser made by polymer mirrors embedding inorganic core@shell nanocrystals.![]()
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Affiliation(s)
- G. Manfredi
- Dipartimento di Chimica e Chimica Industriale
- Università Degli Studi di Genova
- Genoa
- Italy
| | - P. Lova
- Dipartimento di Chimica e Chimica Industriale
- Università Degli Studi di Genova
- Genoa
- Italy
| | - F. Di Stasio
- Nanochemistry Department
- Istituto Italiano di Tecnologia
- Genoa
- Italy
| | - P. Rastogi
- Nanochemistry Department
- Istituto Italiano di Tecnologia
- Genoa
- Italy
| | - R. Krahne
- Nanochemistry Department
- Istituto Italiano di Tecnologia
- Genoa
- Italy
| | - D. Comoretto
- Dipartimento di Chimica e Chimica Industriale
- Università Degli Studi di Genova
- Genoa
- Italy
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70
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Kruisová A, Ševčík M, Seiner H, Sedlák P, Román-Manso B, Miranzo P, Belmonte M, Landa M. Ultrasonic bandgaps in 3D-printed periodic ceramic microlattices. ULTRASONICS 2018; 82:91-100. [PMID: 28787613 DOI: 10.1016/j.ultras.2017.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 07/21/2017] [Accepted: 07/27/2017] [Indexed: 06/07/2023]
Abstract
The transmission of longitudinal ultrasonic waves through periodic ceramic microlattices fabricated by Robocasting was measured in the 2-12MHz frequency range. It was observed that these structures (scaffolds of tetragonal and hexagonal spatial arrangements with periodicity at length-scales of ∼100μm) exhibit well-detectable acoustic band structures with bandgaps. The locations of these gaps at relatively high frequencies were shown to be in close agreement with the predictions of numerical models, especially for tetragonal scaffolds. For hexagonal scaffolds, a mixing between longitudinal and shear polarizations of the propagation modes was observed in the model, which blurred the matching of the calculated band structures with the experimentally measured bandgaps.
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Affiliation(s)
- Alena Kruisová
- Institute of Thermomechanics, Czech Academy of Sciences, Dolejškova 5, 18200 Prague, Czech Republic
| | - Martin Ševčík
- Institute of Thermomechanics, Czech Academy of Sciences, Dolejškova 5, 18200 Prague, Czech Republic
| | - Hanuš Seiner
- Institute of Thermomechanics, Czech Academy of Sciences, Dolejškova 5, 18200 Prague, Czech Republic.
| | - Petr Sedlák
- Institute of Thermomechanics, Czech Academy of Sciences, Dolejškova 5, 18200 Prague, Czech Republic
| | - Benito Román-Manso
- School of Engineering and Applied Sciences, Harvard University, 52 Oxford St, 02138 Cambridge, MA, USA
| | - Pilar Miranzo
- Institute of Ceramics and Glass (ICV-CSIC), Campus de Cantoblanco, Kelsen 5, 28049 Madrid, Spain
| | - Manuel Belmonte
- Institute of Ceramics and Glass (ICV-CSIC), Campus de Cantoblanco, Kelsen 5, 28049 Madrid, Spain
| | - Michal Landa
- Institute of Thermomechanics, Czech Academy of Sciences, Dolejškova 5, 18200 Prague, Czech Republic
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71
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72
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Gallei M. Functional Polymer Opals and Porous Materials by Shear-Induced Assembly of Tailor-Made Particles. Macromol Rapid Commun 2017; 39. [DOI: 10.1002/marc.201700648] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 10/08/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Markus Gallei
- Ernst-Berl Institut für Technische und Makromolekulare Chemie; Technische Universität Darmstadt; Alarich-Weiss-Straße 4 64287 Darmstadt Germany
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73
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Vowinkel S, Paul S, Gutmann T, Gallei M. Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E390. [PMID: 29140279 PMCID: PMC5707607 DOI: 10.3390/nano7110390] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 11/16/2022]
Abstract
The utilization and preparation of functional hybrid films for optical sensing applications and membranes is of utmost importance. In this work, we report the convenient and scalable preparation of self-crosslinking particle-based films derived by directed self-assembly of alkoxysilane-based cross-linkers as part of a core-shell particle architecture. The synthesis of well-designed monodisperse core-shell particles by emulsion polymerization is the basic prerequisite for subsequent particle processing via the melt-shear organization technique. In more detail, the core particles consist of polystyrene (PS) or poly(methyl methacrylate) (PMMA), while the comparably soft particle shell consists of poly(ethyl acrylate) (PEA) and different alkoxysilane-based poly(methacrylate)s. For hybrid film formation and convenient self-cross-linking, different alkyl groups at the siloxane moieties were investigated in detail by solid-state Magic-Angle Spinning Nuclear Magnetic Resonance (MAS, NMR) spectroscopy revealing different crosslinking capabilities, which strongly influence the properties of the core or shell particle films with respect to transparency and iridescent reflection colors. Furthermore, solid-state NMR spectroscopy and investigation of the thermal properties by differential scanning calorimetry (DSC) measurements allow for insights into the cross-linking capabilities prior to and after synthesis, as well as after the thermally and pressure-induced processing steps. Subsequently, free-standing and self-crosslinked particle-based films featuring excellent particle order are obtained by application of the melt-shear organization technique, as shown by microscopy (TEM, SEM).
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Affiliation(s)
- Steffen Vowinkel
- Ernst-Berl-Institute for Chemical Engineering and Macromolecular Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany.
| | - Stephen Paul
- Eduard-Zintl Institute for Inorganic and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, D-64287 Darmstadt, Germany.
| | - Torsten Gutmann
- Eduard-Zintl Institute for Inorganic and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, D-64287 Darmstadt, Germany.
| | - Markus Gallei
- Ernst-Berl-Institute for Chemical Engineering and Macromolecular Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, D-64287 Darmstadt, Germany.
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74
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Li A, Zhang C, Zhang YF. Thermal Conductivity of Graphene-Polymer Composites: Mechanisms, Properties, and Applications. Polymers (Basel) 2017; 9:E437. [PMID: 30965752 PMCID: PMC6418889 DOI: 10.3390/polym9090437] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 09/07/2017] [Accepted: 09/07/2017] [Indexed: 11/17/2022] Open
Abstract
With the integration and miniaturization of electronic devices, thermal management has become a crucial issue that strongly affects their performance, reliability, and lifetime. One of the current interests in polymer-based composites is thermal conductive composites that dissipate the thermal energy produced by electronic, optoelectronic, and photonic devices and systems. Ultrahigh thermal conductivity makes graphene the most promising filler for thermal conductive composites. This article reviews the mechanisms of thermal conduction, the recent advances, and the influencing factors on graphene-polymer composites (GPC). In the end, we also discuss the applications of GPC in thermal engineering. This article summarizes the research on graphene-polymer thermal conductive composites in recent years and provides guidance on the preparation of composites with high thermal conductivity.
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Affiliation(s)
- An Li
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
| | - Cong Zhang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
| | - Yang-Fei Zhang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
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75
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Ligon SC, Liska R, Stampfl J, Gurr M, Mülhaupt R. Polymers for 3D Printing and Customized Additive Manufacturing. Chem Rev 2017; 117:10212-10290. [PMID: 28756658 PMCID: PMC5553103 DOI: 10.1021/acs.chemrev.7b00074] [Citation(s) in RCA: 1165] [Impact Index Per Article: 166.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 02/06/2023]
Abstract
Additive manufacturing (AM) alias 3D printing translates computer-aided design (CAD) virtual 3D models into physical objects. By digital slicing of CAD, 3D scan, or tomography data, AM builds objects layer by layer without the need for molds or machining. AM enables decentralized fabrication of customized objects on demand by exploiting digital information storage and retrieval via the Internet. The ongoing transition from rapid prototyping to rapid manufacturing prompts new challenges for mechanical engineers and materials scientists alike. Because polymers are by far the most utilized class of materials for AM, this Review focuses on polymer processing and the development of polymers and advanced polymer systems specifically for AM. AM techniques covered include vat photopolymerization (stereolithography), powder bed fusion (SLS), material and binder jetting (inkjet and aerosol 3D printing), sheet lamination (LOM), extrusion (FDM, 3D dispensing, 3D fiber deposition, and 3D plotting), and 3D bioprinting. The range of polymers used in AM encompasses thermoplastics, thermosets, elastomers, hydrogels, functional polymers, polymer blends, composites, and biological systems. Aspects of polymer design, additives, and processing parameters as they relate to enhancing build speed and improving accuracy, functionality, surface finish, stability, mechanical properties, and porosity are addressed. Selected applications demonstrate how polymer-based AM is being exploited in lightweight engineering, architecture, food processing, optics, energy technology, dentistry, drug delivery, and personalized medicine. Unparalleled by metals and ceramics, polymer-based AM plays a key role in the emerging AM of advanced multifunctional and multimaterial systems including living biological systems as well as life-like synthetic systems.
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Affiliation(s)
- Samuel Clark Ligon
- Laboratory
for High Performance Ceramics, Empa, The
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
- Institute of Applied
Synthetic Chemistry and Institute of Materials Science and
Technology, TU Wien, Getreidemarkt 9, Vienna A-1060, Austria
| | - Robert Liska
- Institute of Applied
Synthetic Chemistry and Institute of Materials Science and
Technology, TU Wien, Getreidemarkt 9, Vienna A-1060, Austria
| | - Jürgen Stampfl
- Institute of Applied
Synthetic Chemistry and Institute of Materials Science and
Technology, TU Wien, Getreidemarkt 9, Vienna A-1060, Austria
| | - Matthias Gurr
- H.
B. Fuller Deutschland GmbH, An der Roten Bleiche 2-3, Lüneburg D-21335, Germany
| | - Rolf Mülhaupt
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Straße 31, Freiburg D-79104, Germany
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76
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Ligon SC, Liska R, Stampfl J, Gurr M, Mülhaupt R. Polymers for 3D Printing and Customized Additive Manufacturing. Chem Rev 2017. [DOI: 10.1021/acs.chemrev.7b00074 impact factor 2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Samuel Clark Ligon
- Laboratory
for High Performance Ceramics, Empa, The Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
| | | | | | - Matthias Gurr
- H. B. Fuller Deutschland GmbH, An der Roten Bleiche 2-3, Lüneburg D-21335, Germany
| | - Rolf Mülhaupt
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Straße 31, Freiburg D-79104, Germany
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77
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Kang HS, Lee J, Cho SM, Park TH, Kim MJ, Park C, Lee SW, Kim KL, Ryu DY, Huh J, Thomas EL, Park C. Printable and Rewritable Full Block Copolymer Structural Color. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1700084. [PMID: 28556348 DOI: 10.1002/adma.201700084] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/02/2017] [Indexed: 06/07/2023]
Abstract
Structural colors (SCs) of photonic crystals (PCs) arise from selective constructive interference of incident light. Here, an ink-jet printable and rewritable block copolymer (BCP) SC display is demonstrated, which can be quickly written and erased over 50 times with resolution nearly equivalent to that obtained with a commercial office ink-jet printer. Moreover, the writing process employs an easily modified printer for position- and concentration-controlled deposition of a single, colorless, water-based ink containing a reversible crosslinking agent, ammonium persulfate. Deposition of the ink onto a self-assembled BCP PC film comprising a 1D stack of alternating layers enables differential swelling of the written BCP film and produces a full-colored SC display of characters and images. Furthermore, the information can be readily erased and the system can be reset by application of hydrogen bromide. Subsequently, new information can be rewritten, resulting in a chemically rewritable BCP SC display.
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Affiliation(s)
- Han Sol Kang
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Jinseong Lee
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Suk Man Cho
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Tae Hyun Park
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Min Ju Kim
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Chanho Park
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Seung Won Lee
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Kang Lib Kim
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 120-749, Republic of Korea
| | - June Huh
- Department of Chemical and Biological Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul, 136-713, Republic of Korea
| | - Edwin L Thomas
- Department of Materials Science and Nano Engineering, Rice University, Houston, TX, 77005, USA
| | - Cheolmin Park
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
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78
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Hofman AH, Reza M, Ruokolainen J, Ten Brinke G, Loos K. The Origin of Hierarchical Structure Formation in Highly Grafted Symmetric Supramolecular Double-Comb Diblock Copolymers. Macromol Rapid Commun 2017; 38. [PMID: 28749009 DOI: 10.1002/marc.201700288] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/11/2017] [Indexed: 01/18/2023]
Abstract
Involving supramolecular chemistry in self-assembling block copolymer systems enables design of complex macromolecular architectures that, in turn, could lead to complex phase behavior. It is an elegant route, as complicated and sensitive synthesis techniques can be avoided. Highly grafted double-comb diblock copolymers based on symmetric double hydrogen bond accepting poly(4-vinylpyridine)-block-poly(N-acryloylpiperidine) diblock copolymers and donating 3-nonadecylphenol amphiphiles are realized and studied systematically by changing the molecular weight of the copolymer. Double perpendicular lamellae-in-lamellae are formed in all complexes, independent of the copolymer molecular weight. Temperature-resolved measurements demonstrate that the supramolecular nature and ability to crystallize are responsible for the formation of such multiblock-like structures. Because of these driving forces and severe plasticization of the complexes in the liquid crystalline state, this supramolecular approach can be useful for steering self-assembly of both low- and high-molecular-weight block copolymer systems.
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Affiliation(s)
- Anton H Hofman
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands
| | - Mehedi Reza
- Department of Applied Physics, Aalto University, P.O. Box 11100, FI-00076, Aalto, Finland
| | - Janne Ruokolainen
- Department of Applied Physics, Aalto University, P.O. Box 11100, FI-00076, Aalto, Finland
| | - Gerrit Ten Brinke
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands
| | - Katja Loos
- Macromolecular Chemistry and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands
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79
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Finlayson CE, Baumberg JJ. Generating Bulk-Scale Ordered Optical Materials Using Shear-Assembly in Viscoelastic Media. MATERIALS 2017; 10:ma10070688. [PMID: 28773044 PMCID: PMC5551731 DOI: 10.3390/ma10070688] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 06/19/2017] [Accepted: 06/19/2017] [Indexed: 02/05/2023]
Abstract
We review recent advances in the generation of photonics materials over large areas and volumes, using the paradigm of shear-induced ordering of composite polymer nanoparticles. The hard-core/soft-shell design of these particles produces quasi-solid “gum-like” media, with a viscoelastic ensemble response to applied shear, in marked contrast to the behavior seen in colloidal and granular systems. Applying an oscillatory shearing method to sub-micron spherical nanoparticles gives elastomeric photonic crystals (or “polymer opals”) with intense tunable structural color. The further engineering of this shear-ordering using a controllable “roll-to-roll” process known as Bending Induced Oscillatory Shear (BIOS), together with the interchangeable nature of the base composite particles, opens potentially transformative possibilities for mass manufacture of nano-ordered materials, including advances in optical materials, photonics, and metamaterials/plasmonics.
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Affiliation(s)
- Chris E Finlayson
- Department of Physics, Prifysgol Aberystwyth University, Aberystwyth, Wales SY23 3BZ, UK.
| | - Jeremy J Baumberg
- Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK.
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80
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Fu H, Nan K, Froeter P, Huang W, Liu Y, Wang Y, Wang J, Yan Z, Luan H, Guo X, Zhang Y, Jiang C, Li L, Dunn AC, Li X, Huang Y, Zhang Y, Rogers JA. Mechanically-Guided Deterministic Assembly of 3D Mesostructures Assisted by Residual Stresses. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:10.1002/smll.201700151. [PMID: 28489315 PMCID: PMC5559729 DOI: 10.1002/smll.201700151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/20/2017] [Indexed: 06/07/2023]
Abstract
Formation of 3D mesostructures in advanced functional materials is of growing interest due to the widespread envisioned applications of devices that exploit 3D architectures. Mechanically guided assembly based on compressive buckling of 2D precursors represents a promising method, with applicability to a diverse set of geometries and materials, including inorganic semiconductors, metals, polymers, and their heterogeneous combinations. This paper introduces ideas that extend the levels of control and the range of 3D layouts that are achievable in this manner. Here, thin, patterned layers with well-defined residual stresses influence the process of 2D to 3D geometric transformation. Systematic studies through combined analytical modeling, numerical simulations, and experimental observations demonstrate the effectiveness of the proposed strategy through ≈20 example cases with a broad range of complex 3D topologies. The results elucidate the ability of these stressed layers to alter the energy landscape associated with the transformation process and, specifically, the energy barriers that separate different stable modes in the final 3D configurations. A demonstration in a mechanically tunable microbalance illustrates the utility of these ideas in a simple structure designed for mass measurement.
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Affiliation(s)
| | | | - Paul Froeter
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Wen Huang
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Yuan Liu
- Center for Mechanics and Materials, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084 (P.R. China)
| | - Yiqi Wang
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Juntong Wang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Zheng Yan
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Haiwen Luan
- Departments of Civil and Environmental Engineering, Mechanical Engineering, and Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (USA)
| | - Xiaogang Guo
- Center for Mechanics and Materials, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084 (P.R. China)
| | - Yijie Zhang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Changqing Jiang
- Man-machine-Environment Engineering Institute, Department of Aeronautics & Astronautics Engineering, Tsinghua University, Beijing 100084 (P.R. China)
| | - Luming Li
- Man-machine-Environment Engineering Institute, Department of Aeronautics & Astronautics Engineering, Tsinghua University, Beijing 100084 (P.R. China)
| | - Alison C. Dunn
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Xiuling Li
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Yonggang Huang
- Departments of Civil and Environmental Engineering, Mechanical Engineering, and Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (USA)
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81
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Liberman-Martin AL, Chu CK, Grubbs RH. Application of Bottlebrush Block Copolymers as Photonic Crystals. Macromol Rapid Commun 2017; 38. [PMID: 28544118 DOI: 10.1002/marc.201700058] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/08/2017] [Indexed: 11/12/2022]
Abstract
Brush block copolymers are a class of comb polymers that feature polymeric side chains densely grafted to a linear backbone. These polymers display interesting properties due to their dense functionality, low entanglement, and ability to rapidly self-assemble to highly ordered nanostructures. The ability to prepare brush polymers with precise structures has been enabled by advancements in controlled polymerization techniques. This Feature Article highlights the development of brush block copolymers as photonic crystals that can reflect visible to near-infrared wavelengths of light. Fabrication of these materials relies on polymer self-assembly processes to achieve nanoscale ordering, which allows for the rapid preparation of photonic crystals from common organic chemical feedstocks. The characteristic physical properties of brush block copolymers are discussed, along with methods for their preparation. Strategies to induce self-assembly at ambient temperatures and the use of blending techniques to tune photonic properties are emphasized.
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Affiliation(s)
- Allegra L Liberman-Martin
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
| | - Crystal K Chu
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
| | - Robert H Grubbs
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, 91125, United States
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82
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Heuser T, Merindol R, Loescher S, Klaus A, Walther A. Photonic Devices Out of Equilibrium: Transient Memory, Signal Propagation, and Sensing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1606842. [PMID: 28221714 DOI: 10.1002/adma.201606842] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 01/23/2017] [Indexed: 06/06/2023]
Abstract
Soft photonic materials are important for sensors, displays, or energy management and have become switchable under static equilibrium conditions by integration of responsive polymer features. The next step is to equip such materials with the ability for autonomously dynamic and self-regulating behavior, which would advance their functionality and application possibilities to new levels. Here, this study shows the system integration of a nonlinear, biocatalytic pH-feedback system with a pH-responsive block copolymer photonic gel, and demonstrates autonomous transient memories, remotely controlled signal propagation, and sensing. This study utilizes an enzymatic switch to program the lifetime of the reflective state of a photonic gel, and induces propagation of pH-waves extinguishable by illumination with UV-light. The described combination of nonlinear chemistry and responsive photonic gels opens pathways toward out-of-equilibrium photonic devices with active and autonomous behavior useful for sensing, computation, and communication.
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Affiliation(s)
- Thomas Heuser
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074, Aachen, Germany
| | - Rémi Merindol
- Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 31, 79104, Freiburg, Germany
- Freiburg Materials Research Center, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 21, 79104, Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany
| | - Sebastian Loescher
- Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 31, 79104, Freiburg, Germany
- Freiburg Materials Research Center, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 21, 79104, Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany
| | - Aileen Klaus
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074, Aachen, Germany
| | - Andreas Walther
- Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 31, 79104, Freiburg, Germany
- Freiburg Materials Research Center, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 21, 79104, Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies, Albert-Ludwigs-University Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany
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83
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Nan K, Luan H, Yan Z, Ning X, Wang Y, Wang A, Wang J, Han M, Chang M, Li K, Zhang Y, Huang W, Xue Y, Huang Y, Zhang Y, Rogers JA. Engineered elastomer substrates for guided assembly of complex 3D mesostructures by spatially nonuniform compressive buckling. ADVANCED FUNCTIONAL MATERIALS 2017; 27:1604281. [PMID: 28970775 PMCID: PMC5621772 DOI: 10.1002/adfm.201604281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Approaches capable of creating three-dimensional (3D) mesostructures in advanced materials (device-grade semiconductors, electroactive polymers etc.) are of increasing interest in modern materials research. A versatile set of approaches exploits transformation of planar precursors into 3D architectures through the action of compressive forces associated with release of prestrain in a supporting elastomer substrate. Although a diverse set of 3D structures can be realized in nearly any class of material in this way, all previously reported demonstrations lack the ability to vary the degree of compression imparted to different regions of the 2D precursor, thus constraining the diversity of 3D geometries. This paper presents a set of ideas in materials and mechanics in which elastomeric substrates with engineered distributions of thickness yield desired strain distributions for targeted control over resultant 3D mesostructures geometries. This approach is compatible with a broad range of advanced functional materials from device-grade semiconductors to commercially available thin films, over length scales from tens of microns to several millimeters. A wide range of 3D structures can be produced in this way, some of which have direct relevance to applications in tunable optics and stretchable electronics.
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Affiliation(s)
- Kewang Nan
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Haiwen Luan
- Departments of Mechanical Engineering, and Civil and Environmental Engineering, Northwestern University, Evanston, Illinois 60208 (USA)
| | - Zheng Yan
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Xin Ning
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Yiqi Wang
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Ao Wang
- Departments of Mechanical Engineering, and Civil and Environmental Engineering, Northwestern University, Evanston, Illinois 60208 (USA), Department of Engineering Mechanics, Tsinghua University, Beijing 100084 (P.R. China)
| | - Juntong Wang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Mengdi Han
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Peking University, Beijing 100871 (P. R. China)
| | - Matthew Chang
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Kan Li
- Departments of Mechanical Engineering, and Civil and Environmental Engineering, Northwestern University, Evanston, Illinois 60208 (USA)
| | - Yutong Zhang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Wen Huang
- Department of Electrical and Computer Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
| | - Yeguang Xue
- Departments of Mechanical Engineering, and Civil and Environmental Engineering, Northwestern University, Evanston, Illinois 60208 (USA)
| | - Yonggang Huang
- Departments of Civil and Environmental Engineering, Mechanical Engineering, and Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (USA)
| | - Yihui Zhang
- Center for Mechanics and Materials, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084 (P.R. China)
| | - John A Rogers
- Department of Materials Science and Engineering, Chemistry, Mechanical Science and Engineering, Electrical and Computer Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA)
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84
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Akbarzadeh AH, Cui Y, Chen ZT. Thermal wave: from nonlocal continuum to molecular dynamics. RSC Adv 2017. [DOI: 10.1039/c6ra28831f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
To accommodate effects of thermomass and size-dependency of thermophysical properties on heat transport and to remove the theoretical singularity of temperature gradients across the thermal wavefront NL FTPL heat conduction, corroborated with MD simulation, is introduced.
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Affiliation(s)
- A. H. Akbarzadeh
- Department of Bioresource Engineering
- McGill University
- Island of Montreal
- Canada
| | - Y. Cui
- Department of Mechanical Engineering
- University of Alberta
- Edmonton
- Canada
| | - Z. T. Chen
- Department of Mechanical Engineering
- University of Alberta
- Edmonton
- Canada
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85
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Manivannan K, Huang YS, Huang BR, Huang CF, Chen JK. Real-Time Packing Behavior of Core-Shell Silica@Poly(N-isopropylacrylamide) Microspheres as Photonic Crystals for Visualizing in Thermal Sensing. Polymers (Basel) 2016; 8:E428. [PMID: 30974704 PMCID: PMC6431998 DOI: 10.3390/polym8120428] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 11/29/2016] [Accepted: 12/06/2016] [Indexed: 12/22/2022] Open
Abstract
We grafted thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) brushes from monodisperse SiO₂ microspheres through surface-initiated atom transfer radical polymerization (SI ATRP) to generate core-shell structured SiO₂@PNIPAM microspheres (SPMs). Regular-sized SPMs dispersed in aqueous solution and packed as photonic crystals (PCs) in dry state. Because of the microscale of the SPMs, the packing behavior of the PCs in water can be observed by optical microscopy. By increasing the temperature above the lower critical solution temperature (LCST) of PNIPAM, the reversible swelling and shrinking of the PNIPAM shell resulted in dispersion and precipitation (three-dimensional aggregation) of the SPM in aqueous solution. The SPMs were microdispersed in a water layer to accommodate the aggregation along two dimensions. In the microdispersion, the SPMs are packed as PCs with microscale spacing between SPMs below the LCST. When the temperature is increased above the LCST, the microdispersed PCs exhibited a close-packed arrangement along two dimensions with decreased spacing between SPMs. The change in spacing with increasing temperature above the LCST resulted in a color change from red to blue, which could be observed by the naked eye at an incident angle. Thus, the SPM array could be applied as a visual temperature sensor.
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Affiliation(s)
- Karthikeyan Manivannan
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, 43, Sec 4, Keelung Road, Taipei 106, Taiwan.
| | - Yi-Shen Huang
- Department of Chemical Engineering, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan.
| | - Bohr-Ran Huang
- Graduate Institute of Electro-Optical Engineering and Department of Electronic Engineering, National Taiwan University of Science and Technology, 43, Sec 4, Keelung Road, Taipei 106, Taiwan.
| | - Chih-Feng Huang
- Department of Chemical Engineering, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 402, Taiwan.
| | - Jem-Kun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, 43, Sec 4, Keelung Road, Taipei 106, Taiwan.
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86
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Noro A, Tomita Y, Matsushita Y, Thomas EL. Enthalpy-Driven Swelling of Photonic Block Polymer Films. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01867] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Atsushi Noro
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yusuke Tomita
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yushu Matsushita
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Edwin L. Thomas
- Department
of Materials Science and Nanoengineering, Rice University, Houston, Texas 77251, United States
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87
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Wang Z, Zhang Q, Zhang K, Hu G. Tunable Digital Metamaterial for Broadband Vibration Isolation at Low Frequency. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9857-9861. [PMID: 27654019 DOI: 10.1002/adma.201604009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/29/2016] [Indexed: 06/06/2023]
Abstract
A 3D-printed digital metamaterial embedded with electromagnets is fabricated. Switching electromagnets between the attaching (1 bit) and detaching (0 bit) modes activates different waveguides in the metamaterial. The underlying mechanism is investigated theoretically and experimentally. The hierarchical assemblies of unit cells, mimicking digital bits, allow programmable broadening of the bandgap of the metamaterial.
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Affiliation(s)
- Ziwei Wang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Quan Zhang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Kai Zhang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Gengkai Hu
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China
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88
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Yan Z, Zhang F, Liu F, Han M, Ou D, Liu Y, Lin Q, Guo X, Fu H, Xie Z, Gao M, Huang Y, Kim J, Qiu Y, Nan K, Kim J, Gutruf P, Luo H, Zhao A, Hwang KC, Huang Y, Zhang Y, Rogers JA. Mechanical assembly of complex, 3D mesostructures from releasable multilayers of advanced materials. SCIENCE ADVANCES 2016; 2:e1601014. [PMID: 27679820 PMCID: PMC5035128 DOI: 10.1126/sciadv.1601014] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/16/2016] [Indexed: 05/19/2023]
Abstract
Capabilities for assembly of three-dimensional (3D) micro/nanostructures in advanced materials have important implications across a broad range of application areas, reaching nearly every class of microsystem technology. Approaches that rely on the controlled, compressive buckling of 2D precursors are promising because of their demonstrated compatibility with the most sophisticated planar technologies, where materials include inorganic semiconductors, polymers, metals, and various heterogeneous combinations, spanning length scales from submicrometer to centimeter dimensions. We introduce a set of fabrication techniques and design concepts that bypass certain constraints set by the underlying physics and geometrical properties of the assembly processes associated with the original versions of these methods. In particular, the use of releasable, multilayer 2D precursors provides access to complex 3D topologies, including dense architectures with nested layouts, controlled points of entanglement, and other previously unobtainable layouts. Furthermore, the simultaneous, coordinated assembly of additional structures can enhance the structural stability and drive the motion of extended features in these systems. The resulting 3D mesostructures, demonstrated in a diverse set of more than 40 different examples with feature sizes from micrometers to centimeters, offer unique possibilities in device design. A 3D spiral inductor for near-field communication represents an example where these ideas enable enhanced quality (Q) factors and broader working angles compared to those of conventional 2D counterparts.
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Affiliation(s)
- Zheng Yan
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Fan Zhang
- Center for Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Fei Liu
- Center for Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Mengdi Han
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Peking University, Beijing 100871, P.R. China
| | - Dapeng Ou
- Center for Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Yuhao Liu
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Qing Lin
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Xuelin Guo
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Haoran Fu
- Center for Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Zhaoqian Xie
- Departments of Civil and Environmental Engineering, Mechanical Engineering and Materials Science and Engineering, Center for Engineering and Health, and Skin Disease Research Center, Northwestern University, Evanston, IL 60208, USA
| | - Mingye Gao
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yuming Huang
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - JungHwan Kim
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yitao Qiu
- Department of Automotive Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Kewang Nan
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Jeonghyun Kim
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Philipp Gutruf
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hongying Luo
- Departments of Civil and Environmental Engineering, Mechanical Engineering and Materials Science and Engineering, Center for Engineering and Health, and Skin Disease Research Center, Northwestern University, Evanston, IL 60208, USA
- School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, P.R. China
| | - An Zhao
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Keh-Chih Hwang
- Center for Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
| | - Yonggang Huang
- Departments of Civil and Environmental Engineering, Mechanical Engineering and Materials Science and Engineering, Center for Engineering and Health, and Skin Disease Research Center, Northwestern University, Evanston, IL 60208, USA
- Corresponding author. (J.A.R.); (Y.Z.); (Yonggang Huang)
| | - Yihui Zhang
- Center for Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China
- Corresponding author. (J.A.R.); (Y.Z.); (Yonggang Huang)
| | - John A. Rogers
- Department of Materials Science and Engineering and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Corresponding author. (J.A.R.); (Y.Z.); (Yonggang Huang)
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89
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Abstract
Nature has mastered the construction of nanostructures with well-defined macroscopic effects and purposes. Structural colouration is a visible consequence of the particular patterning of a reflecting surface with regular structures at submicron length scales. Structural colours usually appear bright, shiny, iridescent or with a metallic look, as a result of physical processes such as diffraction, interference, or scattering with a typically small dissipative loss. These features have recently attracted much research effort in materials science, chemistry, engineering and physics, in order to understand and produce structural colours. In these early stages of photonics, researchers facing an infinite array of possible colour-producing structures are heavily inspired by the elaborate architectures they find in nature. We review here the recent technological strategies employed to artificially mimic the structural colours found in nature, as well as some of their current and potential applications.
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Affiliation(s)
- Ahu Gümrah Dumanli
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
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90
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Motokawa R, Taniguchi T, Kumada T, Iida Y, Aoyagi S, Sasaki Y, Kohri M, Kishikawa K. Photonic Crystals Fabricated by Block Copolymerization-Induced Microphase Separation. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01190] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ryuhei Motokawa
- Materials
Sciences Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Tatsuo Taniguchi
- Division
of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Takayuki Kumada
- Materials
Sciences Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - You Iida
- Department
of Physics, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Shota Aoyagi
- Division
of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yusuke Sasaki
- Division
of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Michinari Kohri
- Division
of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Keiki Kishikawa
- Division
of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33
Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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91
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Song DP, Shahin S, Xie W, Mehravar S, Liu X, Li C, Norwood RA, Lee JH, Watkins JJ. Directed Assembly of Quantum Dots Using Brush Block Copolymers for Well-Ordered Nonlinear Optical Nanocomposites. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00926] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Dong-Po Song
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Shiva Shahin
- College of Optical Sciences, University of Arizona, 1630 E. University Boulevard, Tucson, Arizona 85721, United States
| | - Wanting Xie
- Department of Mechanical and Industrial
Engineering, University of Massachusetts Amherst, 160 Governors
Drive, Amherst, Massachusetts 01003, United States
| | - Soroush Mehravar
- College of Optical Sciences, University of Arizona, 1630 E. University Boulevard, Tucson, Arizona 85721, United States
| | - Xiaohui Liu
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Cheng Li
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Robert A. Norwood
- College of Optical Sciences, University of Arizona, 1630 E. University Boulevard, Tucson, Arizona 85721, United States
| | - Jae-Hwang Lee
- Department of Mechanical and Industrial
Engineering, University of Massachusetts Amherst, 160 Governors
Drive, Amherst, Massachusetts 01003, United States
| | - James J. Watkins
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States
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92
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Babaee S, Viard N, Wang P, Fang NX, Bertoldi K. Harnessing Deformation to Switch On and Off the Propagation of Sound. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1631-1635. [PMID: 26663556 DOI: 10.1002/adma.201504469] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/16/2015] [Indexed: 06/05/2023]
Abstract
A new class of architected materials is designed to control the propagation of sound. The proposed system comprises an array of elastomeric helices in background air and is characterized by frequency ranges of strong wave attenuation (bandgaps) in the undeformed configuration. Upon axially stretching the helices, such bandgaps are suppressed, enabling the design of a new class of acoustic switch.
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Affiliation(s)
- Sahab Babaee
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Nicolas Viard
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Pai Wang
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Nicholas X Fang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Katia Bertoldi
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Kavli Institute, Harvard University, Cambridge, MA, 02138, USA
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93
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Shi W, Fredrickson GH, Kramer EJ, Ntaras C, Avgeropoulos A, Demassieux Q, Creton C. Mechanics of an Asymmetric Hard-Soft Lamellar Nanomaterial. ACS NANO 2016; 10:2054-2062. [PMID: 26760051 DOI: 10.1021/acsnano.5b06215] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nanolayered lamellae are common structures in nanoscience and nanotechnology, but most are nearly symmetric in layer thickness. Here, we report on the structure and mechanics of highly asymmetric and thermodynamically stable soft-hard lamellar structures self-assembled from optimally designed PS1-(PI-b-PS2)3 miktoarm star block copolymers. The remarkable mechanical properties of these strong and ductile PS (polystyrene)-based nanomaterials can be tuned over a broad range by varying the hard layer thickness while maintaining the soft layer thickness constant at 13 nm. Upon deformation, thin PS lamellae (<100 nm) exhibited kinks and predamaged/damaged grains, as well as cavitation in the soft layers. In contrast, deformation of thick lamellae (>100 nm) manifests cavitation in both soft and hard nanolayers. In situ tensile-SAXS experiments revealed the evolution of cavities during deformation and confirmed that the damage in such systems reflects both plastic deformation by shear and residual cavities. The aspects of the mechanics should point to universal deformation behavior in broader classes of asymmetric hard-soft lamellar materials, whose properties are just being revealed for versatile applications.
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Affiliation(s)
| | | | | | - Christos Ntaras
- Department of Materials Science and Engineering, University of Ioannina , University Campus, Ioannina, Greece 45110
| | - Apostolos Avgeropoulos
- Department of Materials Science and Engineering, University of Ioannina , University Campus, Ioannina, Greece 45110
| | - Quentin Demassieux
- Laboratory of Soft Matter Science and Engineering, ESPCI Paristech-CNRS-UPMC, 10 rue Vauquelin, 75005 Paris, France
| | - Costantino Creton
- Laboratory of Soft Matter Science and Engineering, ESPCI Paristech-CNRS-UPMC, 10 rue Vauquelin, 75005 Paris, France
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94
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Song DP, Li C, Li W, Watkins JJ. Block Copolymer Nanocomposites with High Refractive Index Contrast for One-Step Photonics. ACS NANO 2016; 10:1216-1223. [PMID: 26713452 DOI: 10.1021/acsnano.5b06525] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Photonic crystals (PhCs) prepared using the self-assembly of block copolymers (BCPs) offer the potential for simple and rapid device fabrication but typically suffer from low refractive index contrast (Δn ≤ 0.1) between the phase-segregated domains. Here, we report the simple fabrication of BCP-based photonic nanocomposites with large differences in refractive index (Δn > 0.27). Zirconium oxide (ZrO2) nanoparticles coated with gallic acid are used to tune the optical constants of the target domains of self-assembled (polynorbornene-graft-poly(tert-butyl acrylate))-block-(polynorbornene-graft-poly(ethylene oxide)) (PtBA-b-PEO) brush block copolymers (BBCPs). Strong hydrogen-bonding interactions between the ligands on ZrO2 and PEO brushes of the BBCPs enable selective incorporation and high loading of up to 70 wt % (42 vol %) of the ZrO2 nanoparticles within the PEO domain, resulting in a significant increase of refractive index from 1.45 to up to 1.70. Consequently, greatly enhanced reflection at approximately 398 nm (increases of ∼250%) was observed for the photonic nanocomposites (domain spacing = 137 nm) relative to that of the unmodified BBCPs, which is consistent with numeric modeling results using transfer matrix methods. This work provides a simple strategy for a wide range tuning of optical constants of BCP domains, thereby enabling the design and creation of high-performance photonic coatings for various applications. The large refractive index contrast enables high reflectivity while simultaneously reducing the coating thickness necessary, compared to pure BCP systems.
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Affiliation(s)
- Dong-Po Song
- Department of Polymer Science and Engineering, University of Massachusetts Amherst , 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Cheng Li
- Department of Polymer Science and Engineering, University of Massachusetts Amherst , 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - Wenhao Li
- Department of Polymer Science and Engineering, University of Massachusetts Amherst , 120 Governors Drive, Amherst, Massachusetts 01003, United States
| | - James J Watkins
- Department of Polymer Science and Engineering, University of Massachusetts Amherst , 120 Governors Drive, Amherst, Massachusetts 01003, United States
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95
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Yu S, Han Z, Jiao X, Chen D, Li C. Ultrathin polymer gel-infiltrated monolayer colloidal crystal films for rapid colorimetric chemical sensing. RSC Adv 2016. [DOI: 10.1039/c6ra12331g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The ultrathin polymer gel-infiltrated monolayer colloidal crystal film shows rapid, linear, reversible, and colorimetric responses to pH variations.
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Affiliation(s)
- Shimo Yu
- National Engineering Research Center for Colloidal Materials
- School of Chemistry and Chemical Engineering
- Shandong University
- 250100 Ji'nan
- China
| | - Zhiming Han
- National Engineering Research Center for Colloidal Materials
- School of Chemistry and Chemical Engineering
- Shandong University
- 250100 Ji'nan
- China
| | - Xiuling Jiao
- National Engineering Research Center for Colloidal Materials
- School of Chemistry and Chemical Engineering
- Shandong University
- 250100 Ji'nan
- China
| | - Dairong Chen
- National Engineering Research Center for Colloidal Materials
- School of Chemistry and Chemical Engineering
- Shandong University
- 250100 Ji'nan
- China
| | - Cheng Li
- National Engineering Research Center for Colloidal Materials
- School of Chemistry and Chemical Engineering
- Shandong University
- 250100 Ji'nan
- China
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96
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Shen H, Wang Z, Wu Y, Yang B. One-dimensional photonic crystals: fabrication, responsiveness and emerging applications in 3D construction. RSC Adv 2016. [DOI: 10.1039/c5ra21373h] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Classical usages of one-dimensional photonic crystals and emerging applications in 3D construction.
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Affiliation(s)
- Huaizhong Shen
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Zhanhua Wang
- Laboratory of Organic Chemistry
- Wageningen University and Research Center
- The Netherlands
| | - Yuxin Wu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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97
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Sivamani J, Balasaravanan R, Duraimurugan K, Siva A. Synthesis, characterization and photophysical studies of self-assembled azo biphenyl urea derivatives. Photochem Photobiol Sci 2016; 15:211-8. [DOI: 10.1039/c5pp00357a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We synthesized two different photo-responsive biphenyl azo based urea derivatives and their supramolecular self-assembled molecular frameworks through hydrogen bonding induced aggregations are reported and confirmed by various spectroscopic analyses.
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Affiliation(s)
- Jayaraman Sivamani
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
- India
| | | | - Kumaraguru Duraimurugan
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
- India
| | - Ayyanar Siva
- Department of Inorganic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-21
- India
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98
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Phillips KR, England GT, Sunny S, Shirman E, Shirman T, Vogel N, Aizenberg J. A colloidoscope of colloid-based porous materials and their uses. Chem Soc Rev 2016; 45:281-322. [DOI: 10.1039/c5cs00533g] [Citation(s) in RCA: 214] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Colloids assemble into a variety of bioinspired structures for applications including optics, wetting, sensing, catalysis, and electrodes.
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Affiliation(s)
| | - Grant T. England
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Steffi Sunny
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Elijah Shirman
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
- Wyss Institute for Biologically Inspired Engineering
| | - Tanya Shirman
- John A. Paulson School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
- Wyss Institute for Biologically Inspired Engineering
| | - Nicolas Vogel
- Institute of Particle Technology
- Friedrich-Alexander-University Erlangen-Nürnberg
- Erlangen
- Germany
- Cluster of Excellence Engineering of Advanced Materials
| | - Joanna Aizenberg
- Department of Chemistry and Chemical Biology
- Harvard University
- Cambridge
- USA
- John A. Paulson School of Engineering and Applied Sciences
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99
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Park TJ, Hwang SK, Park S, Cho SH, Park TH, Jeong B, Kang HS, Ryu DY, Huh J, Thomas EL, Park C. Electrically Tunable Soft-Solid Block Copolymer Structural Color. ACS NANO 2015; 9:12158-12167. [PMID: 26505787 DOI: 10.1021/acsnano.5b05234] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
One-dimensional photonic crystals based on the periodic stacking of two different dielectric layers have been widely studied, but the fabrication of mechanically flexible polymer structural color (SC) films, with electro-active color switching, remains challenging. Here, we demonstrate free-standing electric field tunable ionic liquid (IL) swollen block copolymer (BCP) films. Placement of a polymer/ionic liquid film-reservoir adjacent to a self-assembled poly(styrene-block-quaternized 2-vinylpyridine) (PS-b-QP2VP) copolymer SC film allowed the development of red (R), green (G), and blue (B) full-color SC block copolymer films by swelling of the QP2VP domains by the ionic liquid associated with water molecules. The IL-polymer/BCP SC film is mechanically flexible with excellent color stability over several days at ambient conditions. The selective swelling of the QP2VP domains could be controlled by both the ratio of the IL to a polymer in the gel-like IL reservoir layer and by an applied voltage in the range of -3 to +6 V using a metal/IL reservoir/SC film/IL reservoir/metal capacitor type device.
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Affiliation(s)
- Tae Joon Park
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Sun Kak Hwang
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Sungmin Park
- Department of Chemical and Biomolecular Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Sung Hwan Cho
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Tae Hyun Park
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Beomjin Jeong
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Han Sol Kang
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - June Huh
- Department of Chemical and Biological Engineering, Korea University , Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea
| | - Edwin L Thomas
- Department of Materials Science and Nano Engineering, Rice University , Houston, Texas 77005, United States
| | - Cheolmin Park
- Department of Materials Science and Engineering, Yonsei University , 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea
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100
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Chen Y, Wang L. Bio-inspired heterogeneous composites for broadband vibration mitigation. Sci Rep 2015; 5:17865. [PMID: 26642932 PMCID: PMC4672325 DOI: 10.1038/srep17865] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 11/06/2015] [Indexed: 12/11/2022] Open
Abstract
Structural biological materials have developed heterogeneous and hierarchical architectures that are responsible for the outstanding performance to provide protection against environmental threats including static and dynamic loading. Inspired by this observation, this research aims to develop new material and structural concepts for broadband vibration mitigation. The proposed composite materials possess a two-layered heterogeneous architecture where both layers consist of high-volume platelet-shape reinforcements and low-volume matrix, similar to the well-known "brick and mortar" microstructure of biological composites. Using finite element method, we numerically demonstrated that broadband wave attenuation zones can be achieved by tailoring the geometric features of the heterogeneous architecture. We reveal that the resulting broadband attenuation zones are gained by directly superimposing the attenuation zones in each constituent layer. This mechanism is further confirmed by the investigation into the phonon dispersion relation of each layer. Importantly, the broadband wave attenuation capability will be maintained when the mineral platelet orientation is locally manipulated, yet a contrast between the mineral platelet concentrations of the two constituent layers is essential. The findings of this work will provide new opportunities to design heterogeneous composites for broadband vibration mitigation and impact resistance under mechanically challenging environmental conditions.
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Affiliation(s)
- Yanyu Chen
- Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794, USA
| | - Lifeng Wang
- Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794, USA
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