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Chortos A. Extrusion
3D
printing of conjugated polymers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alex Chortos
- Department of Mechanical Engineering Purdue University West Lafayette Indiana USA
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2
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Ahn J, Lee S, Kim JH, Wajahat M, Sim HH, Bae J, Pyo J, Jahandar M, Lim DC, Seol SK. 3D-printed Cu 2O photoelectrodes for photoelectrochemical water splitting. NANOSCALE ADVANCES 2020; 2:5600-5606. [PMID: 36133885 PMCID: PMC9419027 DOI: 10.1039/d0na00512f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/23/2020] [Indexed: 06/16/2023]
Abstract
Photoelectrochemical (PEC) water splitting is an alternative to fossil fuel combustion involving the generation of renewable hydrogen without environmental pollution or greenhouse gas emissions. Cuprous oxide (Cu2O) is a promising semiconducting material for the simple reduction of hydrogen from water, in which the conduction band edge is slightly negative compared to the water reduction potential. However, the solar-to-hydrogen conversion efficiency of Cu2O is lower than the theoretical value due to a short carrier-diffusion length under the effective light absorption depth. Thus, increasing light absorption in the electrode-electrolyte interfacial layer of a Cu2O photoelectrode can enhance PEC performance. In this study, a Cu2O 3D photoelectrode comprised of pyramid arrays was fabricated using a two-step method involving direct-ink-writing of graphene structures. This was followed by the electrodeposition of a Cu current-collecting layer and a p-n homojunction Cu2O photocatalyst layer onto the printed structures. The performance for PEC water splitting was enhanced by increasing the total light absorption area (A a) of the photoelectrode via controlling the electrode topography. The 3D photoelectrode (A a = 3.2 cm2) printed on the substrate area of 1.0 cm2 exhibited a photocurrent (I ph) of -3.01 mA at 0.02 V (vs. RHE), which is approximately three times higher than that of a planar photoelectrode with an A a = 1.0 cm2 (I ph = -0.91 mA). Our 3D printing strategy provides a flexible approach for the design and the fabrication of highly efficient PEC photoelectrodes.
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Affiliation(s)
- Jinhyuck Ahn
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Sanghyeon Lee
- Department of Mechanical Engineering, The University of Hong Kong Pokfulam Road Hong Kong China
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Muhammad Wajahat
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Ho Hyung Sim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
| | - Jongcheon Bae
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- School of Materials Science and Engineering, Pusan National University Busan Republic of Korea
| | - Jaeyeon Pyo
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
| | - Muhammad Jahandar
- Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon-si Gyeongsangnam-do 51508 Republic of Korea
| | - Dong Chan Lim
- Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon-si Gyeongsangnam-do 51508 Republic of Korea
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) Changwon-si Gyeongsangnam-do 51543 Republic of Korea +82-55-280-1590 +82-55-280-1462
- Electrical Functionality Material Engineering, University of Science and Technology (UST) Changwon-si Gyeongsangnam-do 51543 Republic of Korea
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3
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Kee S, Zhang P, Travas-Sejdic J. Direct writing of 3D conjugated polymer micro/nanostructures for organic electronics and bioelectronics. Polym Chem 2020. [DOI: 10.1039/d0py00719f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
3D direct writing and meniscus-guided pen writing methods, which are capable of fabricating 3D micro/nanostructures from soluble π-conjugated polymers (CPs) and CP precursors, and recent advances in these techniques are addressed in this review.
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Affiliation(s)
- Seyoung Kee
- Polymer Biointerface Centre
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Peikai Zhang
- Polymer Biointerface Centre
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Jadranka Travas-Sejdic
- Polymer Biointerface Centre
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
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Lee S, Wajahat M, Kim JH, Pyo J, Chang WS, Cho SH, Kim JT, Seol SK. Electroless Deposition-Assisted 3D Printing of Micro Circuitries for Structural Electronics. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7123-7130. [PMID: 30681321 DOI: 10.1021/acsami.8b18199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Three-dimensional (3D) printing is a next-generation free-form manufacturing technology for structural electronics. The realization of structural electronic devices necessitates the direct integration of electronic circuits into 3D objects. However, creating highly conductive, high-resolution patterns in 3D remains a major challenge. Here, we report on a metallic 3D printing method that incorporates electroless deposition (ELD) into the direct ink writing method. Our approach consists of two steps: (1) direct ink writing of catalyst microstructures with a functional catalyst ink containing Ag ions and (2) ELD of Cu onto the printed catalyst structures. High-quality, stable Cu 3D printing is achieved through the design of the Ag catalyst ink; hydroxypropyl cellulose is added as both a rheological modifier (printing) and dissolution inhibitor (ELD). As a result, various two-dimensional (2D) and 3D Cu micro circuitries with high conductivity (∼65% of bulk) can be directly integrated onto 3D plastic substrates without the need for high-temperature annealing. A hybrid strategy that combines ELD-assisted 3D printing and conventional fused deposition modeling enables full fabrication of structural electronic devices. This 3D printing strategy can be a low-cost and facile method for obtaining highly conductive metallic 2D and 3D microstructures in structural electronics.
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Affiliation(s)
- Sanghyeon Lee
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Department of Electronics and Computer Engineering , Hanyang University , Seoul 04763 , Republic of Korea
| | - Muhammad Wajahat
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Electrical-Functionality Materials Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Electrical-Functionality Materials Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Jaeyeon Pyo
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Won Suk Chang
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Sung Ho Cho
- Department of Electronics and Computer Engineering , Hanyang University , Seoul 04763 , Republic of Korea
| | - Ji Tae Kim
- Department of Mechanical Engineering , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Electrical-Functionality Materials Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
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Wajahat M, Lee S, Kim JH, Chang WS, Pyo J, Cho SH, Seol SK. Flexible Strain Sensors Fabricated by Meniscus-Guided Printing of Carbon Nanotube-Polymer Composites. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19999-20005. [PMID: 29808984 DOI: 10.1021/acsami.8b04073] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Printed strain sensors have promising potential as a human-machine interface (HMI) for health-monitoring systems, human-friendly wearable interactive systems, and smart robotics. Herein, flexible strain sensors based on carbon nanotube (CNT)-polymer composites were fabricated by meniscus-guided printing using a CNT ink formulated from multiwall nanotubes (MWNTs) and polyvinylpyrrolidone (PVP); the ink was suitable for micropatterning on nonflat (or curved) substrates and even three-dimensional structures. The printed strain sensors exhibit a reproducible response to applied tensile and compressive strains, having gauge factors of 13.07 under tensile strain and 12.87 under compressive strain; they also exhibit high stability during ∼1500 bending cycles. Applied strains induce a contact rearrangement of the MWNTs and a change in the tunneling distance between them, resulting in a change in the resistance (Δ R/ R0) of the sensor. Printed MWNT-PVP sensors were used in gloves for finger movement detection; these can be applied to human motion detection and remote control of robotic equipment. Our results demonstrate that meniscus-guided printing using CNT inks can produce highly flexible, sensitive, and inexpensive HMI devices.
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Affiliation(s)
- Muhammad Wajahat
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Electro-Functionality Materials Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Sanghyeon Lee
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Department of Electronics and Computer Engineering , Hanyang University , Seoul 133-791 , Republic of Korea
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Electro-Functionality Materials Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Won Suk Chang
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Department of Electronics and Computer Engineering , Hanyang University , Seoul 133-791 , Republic of Korea
| | - Jaeyeon Pyo
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
| | - Sung Ho Cho
- Department of Electronics and Computer Engineering , Hanyang University , Seoul 133-791 , Republic of Korea
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
- Electro-Functionality Materials Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea
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6
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Zhang P, Aydemir N, Alkaisi M, Williams DE, Travas-Sejdic J. Direct Writing and Characterization of Three-Dimensional Conducting Polymer PEDOT Arrays. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11888-11895. [PMID: 29570263 DOI: 10.1021/acsami.8b02289] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Direct writing is an effective and versatile technique for three-dimensional (3D) fabrication of conducting polymer (CP) structures. It is precisely localized and highly controllable, thus providing great opportunities for incorporating CPs into microelectronic array devices. Herein we demonstrate 3D writing and characterization of poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT:PSS) pillars in an array format, by using an in-house-constructed variant of scanning ion conductance microscopy (SICM). CP pillars with different aspect ratios were successfully fabricated by optimizing the writing parameters: pulling speed, pulling time, concentration of the polymer solution, and the micropipette tip diameter. Especially, super high aspect ratio pillars of around 7 μm in diameter and 5000 μm in height were fabricated, indicating a good capability of this direct writing technique. Additions of an organic solvent and a cross-linking agent contribute to a significantly enhanced water stability of the pillars, critical if the arrays were to be used in biologically relevant applications. Surface morphologies and structural analysis of CP pillars were characterized by scanning electron microscopy and Raman spectroscopy, respectively. Electrochemical properties of the individual pillars of different heights were examined by cyclic voltammetry using a double-barrel micropipette as an electrochemical cell. Exceptional mechanical properties of the pillars, such as high flexibility and robustness, were observed when bent by applying a force. The 3D pillar arrays are expected to provide versatile substrates for functionalized and integrated biological sensing and electrically addressable array devices.
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Affiliation(s)
- Peikai Zhang
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Nihan Aydemir
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Maan Alkaisi
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
- Electrical and Computer Engineering, College of Engineering , University of Canterbury , Christchurch 8140 , New Zealand
| | - David E Williams
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Jadranka Travas-Sejdic
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
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Lee S, Kim JH, Wajahat M, Jeong H, Chang WS, Cho SH, Kim JT, Seol SK. Three-dimensional Printing of Silver Microarchitectures Using Newtonian Nanoparticle Inks. ACS APPLIED MATERIALS & INTERFACES 2017; 9:18918-18924. [PMID: 28541035 DOI: 10.1021/acsami.7b02581] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Although three-dimensional (3D) printing has recently emerged as a technology to potentially bring about the next industrial revolution, the limited selection of usable materials restricts its use to simple prototyping. In particular, metallic 3D printing with submicrometer spatial resolution is essential for the realization of 3D-printed electronics. Herein, a meniscus-guided 3D printing method that exploits a low-viscosity (∼7 mPa·s) silver nanoparticle (AgNP) ink meniscus with Newtonian fluid characteristics (which is compatible with conventional inkjet printers) to fabricate 3D silver microarchitectures is reported. Poly(acrylic acid)-capped AgNP ink that exhibits a continuous ink flow through a confined nozzle without aggregation is designed in this study. Guiding the ink meniscus with controlled direction and speed enables both vertical pulling and layer-by-layer processing, resulting in the creation of 3D microobjects with designed shapes other than those for simple wiring. Various highly conductive (>104 S·cm-1) 3D metallic patterns are demonstrated for applications in electronic devices. This research is expected to widen the range of materials that can be employed in 3D printing technology, with the aim of moving 3D printing beyond prototyping and into real manufacturing platforms for future electronics.
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Affiliation(s)
- Sanghyeon Lee
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Department of Electronics and Computer Engineering, Hanyang University , Seoul 04763, Republic of Korea
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Muhammad Wajahat
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Electrical Functional Material Engineering, Korea University of Science and Technology (UST) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Hwakyung Jeong
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Won Suk Chang
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Department of Electronics and Computer Engineering, Hanyang University , Seoul 04763, Republic of Korea
| | - Sung Ho Cho
- Department of Electronics and Computer Engineering, Hanyang University , Seoul 04763, Republic of Korea
| | - Ji Tae Kim
- Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong, China
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Electrical Functional Material Engineering, Korea University of Science and Technology (UST) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
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Je JH, Kim JM, Jaworski J. Progression in the Fountain Pen Approach: From 2D Writing to 3D Free-Form Micro/Nanofabrication. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1600137. [PMID: 28060466 DOI: 10.1002/smll.201600137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 09/07/2016] [Indexed: 06/06/2023]
Abstract
The fountain pen approach, as a means for transferring materials to substrates, has shown numerous incarnations in recent years for creating 2D micro/nanopatterns and even generating 3D free-form nanostructures using a variety of material "inks". While the idea of filled reservoirs used to deliver material to a substrate via a capillary remains unchanged since antiquity, the advent of precise micromanipulation systems and functional material "inks" allows the extension of this mechanism to more high-tech applications. Herein, the recent growth in meniscus guided fountain pen approaches for benchtop micro/nanofabrication, which has occurred in the last decade, is discussed. Particular attention is given to the theory, equipment, and experimentation encompassing this unique direct writing approach. A detailed exploration of the diverse ink systems and functional device applications borne from this strategy is put forth to reveal its rapid expansion to a broad range of scientific and engineering disciplines. As such, this informative review is provided for researchers considering adoption of this recent advancement of a familiar technology.
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Affiliation(s)
- Jung Ho Je
- Pohang University of Science and Technology, Department of Materials Science and Engineering, San 31, Hyoja-dong, Pohang, 790-784, South Korea
| | - Jong-Man Kim
- Hanyang University, Department of Chemical Engineering, Institute of Nanoscience and Technology, 222 Wangsimni-ro, Seoul, 133-791, South Korea
| | - Justyn Jaworski
- Hanyang University, Department of Chemical Engineering, Institute of Nanoscience and Technology, 222 Wangsimni-ro, Seoul, 133-791, South Korea
- Department of Bioengineering, University of Texas at Arlington (UTA), 501 W. 1st Street, Arlington, Texas, 76010, USA
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Kim JH, Lee S, Wajahat M, Jeong H, Chang WS, Jeong HJ, Yang JR, Kim JT, Seol SK. Three-Dimensional Printing of Highly Conductive Carbon Nanotube Microarchitectures with Fluid Ink. ACS NANO 2016; 10:8879-8887. [PMID: 27564233 DOI: 10.1021/acsnano.6b04771] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Moving printed electronics to three dimensions essentially requires advanced additive manufacturing techniques yielding multifunctionality materials and high spatial resolution. Here, we report the meniscus-guided 3D printing of highly conductive multiwall carbon nanotube (MWNT) microarchitectures that exploit rapid solidification of a fluid ink meniscus formed by pulling a micronozzle. To achieve high-quality printing with continuous ink flow through a confined nozzle geometry, that is, without agglomeration and nozzle clogging, we design a polyvinylpyrrolidone-wrapped MWNT ink with uniform dispersion and appropriate rheological properties. The developed technique can produce various desired 3D microstructures, with a high MWNT concentration of up to 75 wt % being obtained via post-thermal treatment. Successful demonstrations of electronic components such as sensing transducers, emitters, and radio frequency inductors are also described herein. We expect that the technique presented in this study will facilitate selection of diverse materials in 3D printing and enhance the freedom of integration for advanced conceptual devices.
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Affiliation(s)
- Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Sanghyeon Lee
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Department of Electronics and Computer Engineering, Hanyang University , Seoul 133-791, Republic of Korea
| | - Muhammad Wajahat
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Electrical Functional Material Engineering, Korea University of Science and Technology (UST) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Hwakyung Jeong
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Won Suk Chang
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Department of Electronics and Computer Engineering, Hanyang University , Seoul 133-791, Republic of Korea
| | - Hee Jin Jeong
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
| | - Jong-Ryul Yang
- Department of Electronic Engineering, Yeungnam University , 280 Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 38541, Republic of Korea
| | - Ji Tae Kim
- Department of Mechanical Engineering, The University of Hong Kong , Pokfulam Road, Hong Kong, China
| | - Seung Kwon Seol
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
- Electrical Functional Material Engineering, Korea University of Science and Technology (UST) , Changwon-si, Gyeongsangnam-do 51543, Republic of Korea
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Seol SK, Kim D, Lee S, Kim JH, Chang WS, Kim JT. Electrodeposition-based 3D Printing of Metallic Microarchitectures with Controlled Internal Structures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:3896-3902. [PMID: 25917532 DOI: 10.1002/smll.201500177] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/31/2015] [Indexed: 06/04/2023]
Abstract
3D printing of metallic microarchitectures with controlled internal structures is realized at room temperature in ambient air conditions by the manipulation of metal ion concentration and pulsed electric potentials in the electrolyte meniscus during the meniscus-guided electrodeposition. Precise control of the printing nozzle enables the drawing of complex 3D microarchitectures with well-defined geometries and positions.
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Affiliation(s)
- Seung Kwon Seol
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si, Gyeongsangnam-do, 642-120, South Korea
- Electrical Functional Material Engineering, Korea University of Science and Technology, Changwon-si, Gyeongsangnam-do, 642-120, South Korea
| | - Daeho Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si, Gyeongsangnam-do, 642-120, South Korea
- Electrical Functional Material Engineering, Korea University of Science and Technology, Changwon-si, Gyeongsangnam-do, 642-120, South Korea
| | - Sanghyeon Lee
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si, Gyeongsangnam-do, 642-120, South Korea
- Department of Electronics and Computer Engineering, Hanyang University, Seoul, 133-791, South Korea
| | - Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si, Gyeongsangnam-do, 642-120, South Korea
| | - Won Suk Chang
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si, Gyeongsangnam-do, 642-120, South Korea
- Department of Electronics and Computer Engineering, Hanyang University, Seoul, 133-791, South Korea
| | - Ji Tae Kim
- Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, Stuttgart, 70569, Germany
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Kim JH, Chang WS, Kim D, Yang JR, Han JT, Lee GW, Kim JT, Seol SK. 3D printing of reduced graphene oxide nanowires. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:157-61. [PMID: 25393844 DOI: 10.1002/adma.201404380] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Indexed: 05/18/2023]
Abstract
3D printing of reduced graphene oxide (rGO) nanowires is realized at room temperature by local growth of GO at the meniscus formed at a micropipette tip followed by reduction of GO by thermal or chemical treatment. 3D rGO nanowires with diverse and complicated forms are successfully printed, demonstrating their ability to grow in any direction and at the selected sites.
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Affiliation(s)
- Jung Hyun Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si, Gyeongsangnam-do, 642-120, Republic of Korea
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