1
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Foradori SM, Prussack B, Berson A, Arnold MS. Assembly and Alignment of High Packing Density Carbon Nanotube Arrays Using Lithographically Defined Microscopic Water Features. ACS NANO 2024; 18:8259-8269. [PMID: 38437517 DOI: 10.1021/acsnano.3c12243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
High packing density aligned arrays of semiconducting carbon nanotubes (CNTs) are required for many electronics applications. Past work has shown that the accumulation of CNTs at a water-solvent interface can drive array self-assembly. Previously, the confining interface was a large-area, macroscopic feature. Here, we report on the CNT assembly on microscopic water features. Water microdroplets are formed on 10-100 μm wide hydrophilic stripes patterned on a substrate. Exposure to CNTs dispersed in solvent accumulates CNTs at the microdroplet-solvent interface, driving their alignment and deposition at the microdroplet-solvent-substrate contact line. Compared with macroscopic methods in which the contact line uncontrollably moves across the substrate as it is pulled out of the liquids, the hydrophilic patterns and microdroplets allow pinning of the contact line. As CNTs deposit, the contact line self-translates, allowing for dense CNT packing. We realize monolayer CNT arrays aligned within ±3.9° at density of 250 μm-1 and field effect transistors with a high current density of 1.9 mA μm-1 and transconductance of 1.2 mS μm-1 at -0.6 V drain bias and 60 nm channel length.
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Affiliation(s)
- Sean M Foradori
- Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, Wisconsin 53706, United States
| | - Brett Prussack
- Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Avenue, Madison, Wisconsin 53706, United States
| | - Arganthaël Berson
- Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Avenue, Madison, Wisconsin 53706, United States
| | - Michael S Arnold
- Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, Wisconsin 53706, United States
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2
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Xu X, Xue P, Gao M, Li Y, Xu Z, Wei Y, Zhang Z, Liu Y, Wang L, Liu H, Cheng B. Assembled one-dimensional nanowires for flexible electronic devices via printing and coating: Techniques, applications, and perspectives. Adv Colloid Interface Sci 2023; 321:102987. [PMID: 37852138 DOI: 10.1016/j.cis.2023.102987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/10/2023] [Accepted: 08/26/2023] [Indexed: 10/20/2023]
Abstract
The rapid progress in flexible electronic devices has necessitated continual research into nanomaterials, structural design, and fabrication processes. One-dimensional nanowires, characterized by their distinct structures and exceptional properties, are considered essential components for various flexible electronic devices. Considerable attention has been directed toward the assembly of nanowires, which presents significant advantages. Printing and coating techniques can be used to assemble nanowires in a relatively simple, efficient, and cost-competitive manner and exhibit potential for scale-up production in the foreseeable future. This review aims to provide an overview of nanowire assembly using printing and coating techniques, such as bar coating, spray coating, dip coating, blade coating, 3D printing, and so forth. The application of assembled nanowires in flexible electronic devices is subsequently discussed. Finally, further discussion is presented on the potential and challenges of flexible electronic devices based on assembled nanowires via printing and coating.
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Affiliation(s)
- Xin Xu
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Pan Xue
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Meng Gao
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yibin Li
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Zijun Xu
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yu Wei
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Zhengjian Zhang
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Yang Liu
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China.
| | - Lei Wang
- School of Pharmaceutical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, PR China.
| | - Hongbin Liu
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Bowen Cheng
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, PR China.
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3
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Lee GH, Lee DH, Jeon W, Yoon J, Ahn K, Nam KS, Kim M, Kim JK, Koo YH, Joo J, Jung W, Lee J, Nam J, Park S, Jeong JW, Park S. Conductance stable and mechanically durable bi-layer EGaIn composite-coated stretchable fiber for 1D bioelectronics. Nat Commun 2023; 14:4173. [PMID: 37443162 DOI: 10.1038/s41467-023-39928-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Deformable semi-solid liquid metal particles (LMP) have emerged as a promising substitute for rigid conductive fillers due to their excellent electrical properties and stable conductance under strain. However, achieving a compact and robust coating of LMP on fibers remains a persistent challenge, mainly due to the incompatibility of conventional coating techniques with LMP. Additionally, the limited durability and absence of initial electrical conductivity of LMP restrict their widespread application. In this study, we propose a solution process that robustly and compactly assembles mechanically durable and initially conductive LMP on fibers. Specifically, we present a shearing-based deposition of polymer-attached LMP followed by additional coating with CNT-attached LMP to create bi-layer LMP composite with exceptional durability, electrical conductivity, stretchability, and biocompatibility on various fibers. The versatility and reliability of this manufacturing strategy for 1D electronics are demonstrated through the development of sewn electrical circuits, smart clothes, stretchable biointerfaced fiber, and multifunctional fiber probes.
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Affiliation(s)
- Gun-Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Do Hoon Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Woojin Jeon
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jihwan Yoon
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Kwangguk Ahn
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Kum Seok Nam
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Min Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jun Kyu Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yong Hoe Koo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Jinmyoung Joo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - WooChul Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jaehong Lee
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Daegu, 42988, Republic of Korea
| | - Jaewook Nam
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seongjun Park
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for NanoCentury, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Jae-Woong Jeong
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Steve Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for NanoCentury, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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4
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Ding P, Liu H, Zhu Z, Fu Y, Li H, Cao H, Meng F, Xu W, He Q, Cheng J. Directional Activated Exciton Highway via Fractal Electric Field Modulation for Ultrasensitive Carbon Nanotube-Based Sensors. ACS Sens 2023; 8:2375-2382. [PMID: 37253195 DOI: 10.1021/acssensors.3c00517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The electrical vapor sensor based on carbon nanotubes (CNTs) has attracted wide attention due to its excellent conductivity, stable interfacial structure, and low dimensional quantum effects. However, the conductivity and contact interface activity were still limited by the random distribution of coated CNTs, which led to limited performance. We developed a new strategy to unify the CNT directions with image fractal designing of the electrode system. In such a system, directional aligned CNTs were gained under a well-modulated electric field, leading to microscale CNT exciton highways and molecule-scale host-guest site activation. The carrier mobility of the aligned CNT device is 20-fold higher than that of the random network CNT device. With excellent electrical properties, such modulated CNT devices based on fractal electrodes behave as an ultrasensitive vapor sensor for methylphenethylamine, a mimic of illicit drug methamphetamine. The detection limit reached as low as 0.998 ppq, 6 orders of magnitude sensitive than the reported 5 ppb record based on interdigital electrodes with random distributed CNTs. Since the device is easily fabricated in wafer-level and compatible with the CMOS process, such a fractal design strategy for aligned CNT preparation will be widely applied in a variety of wafer-level electrical functional devices.
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Affiliation(s)
- Pengfei Ding
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Huan Liu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Zhen Zhu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Yanyan Fu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Huizi Li
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Huimin Cao
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Fanbing Meng
- Heilongjiang Electric Power Research Institute, State Grid of China, Xiangjiang Road 7, Harbin 150030, China
| | - Wei Xu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Qingguo He
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Jiangong Cheng
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
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5
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Feng Y, Song J, Han G, Zhou B, Liu C, Shen C. Transparent and Stretchable Electromagnetic Interference Shielding Film with Fence-like Aligned Silver Nanowire Conductive Network. SMALL METHODS 2023:e2201490. [PMID: 37086128 DOI: 10.1002/smtd.202201490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 03/09/2023] [Indexed: 05/03/2023]
Abstract
Flexible transparent conductive electrodes (TCEs) that can be used as electromagnetic interference (EMI) shielding materials have a great potential for use as electronic components in optical window and display applications. However, development of TCEs that display high shielding effectiveness (SE) and good stretchability for flexible electronic device applications has proven challenging. Herein, this study describes a stretchable polydimethylsiloxane (PDMS)/silver nanowire (AgNW) TCE with a fence-like aligned conductive network that is fabricated via pre-stretching method. The fence-like AgNW network endowed the PDMS/AgNW film with excellent optoelectronic properties, i.e., low sheet resistance of 7.68 Ω sq-1 at 73.7% optical transmittance, thus causing an effective EMI SE of 32.2 dB at X-band. More importantly, the fence-like aligned AgNW conductive network reveals a high stability toward tensile deformation, thus gives the PDMS/AgNW film stretch-stable conductivity and EMI shielding property in the strain range of 0-100%. Typically, the film can reserve ≈70% or 80% of its initial EMI SE when stretching at 100% strain or stretching/releasing (50% strain) for 128 cycles, respectively. Additionally, the film exhibits a low-voltage driven and stretchable Joule heating performance. With these overall performances, the PDMS/AgNW film should be well suited for use in flexible and stretchable optical electronic devices.
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Affiliation(s)
- Yuezhan Feng
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan, 450002, China
| | - Jianzhou Song
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan, 450002, China
| | - Gaojie Han
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan, 450002, China
| | - Bing Zhou
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan, 450002, China
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan, 450002, China
| | - Changyu Shen
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan, 450002, China
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6
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Lee GH, Woo H, Yoon C, Yang C, Bae JY, Kim W, Lee DH, Kang H, Han S, Kang SK, Park S, Kim HR, Jeong JW, Park S. A Personalized Electronic Tattoo for Healthcare Realized by On-the-Spot Assembly of an Intrinsically Conductive and Durable Liquid-Metal Composite. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2204159. [PMID: 35702762 DOI: 10.1002/adma.202204159] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/31/2022] [Indexed: 06/15/2023]
Abstract
Conventional electronic (e-) skins are a class of thin-film electronics mainly fabricated in laboratories or factories, which is incapable of rapid and simple customization for personalized healthcare. Here a new class of e-tattoos is introduced that can be directly implemented on the skin by facile one-step coating with various designs at multi-scale depending on the purpose of the user without a substrate. An e-tattoo is realized by attaching Pt-decorated carbon nanotubes on gallium-based liquid-metal particles (CMP) to impose intrinsic electrical conductivity and mechanical durability. Tuning the CMP suspension to have low-zeta potential, excellent wettability, and high-vapor pressure enables conformal and intimate assembly of particles directly on the skin in 10 s. Low-cost, ease of preparation, on-skin compatibility, and multifunctionality of CMP make it highly suitable for e-tattoos. Demonstrations of electrical muscle stimulators, photothermal patches, motion artifact-free electrophysiological sensors, and electrochemical biosensors validate the simplicity, versatility, and reliability of the e-tattoo-based approach in biomedical engineering.
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Affiliation(s)
- Gun-Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Heejin Woo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Chanwoong Yoon
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Congqi Yang
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae-Young Bae
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Wonsik Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Do Hoon Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Heemin Kang
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Seungmin Han
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seung-Kyun Kang
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seongjun Park
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyung-Ryong Kim
- Department of Pharmacology, College of Dentistry, Jeonbuk National University, 567 Baekje-daero, Jeonju, 54896, Republic of Korea
| | - Jae-Woong Jeong
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Steve Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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7
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Shen Z, Dwyer JH, Sun J, Jinkins KR, Arnold MS, Gopalan P, Van Lehn RC. A simple simulation-derived descriptor for the deposition of polymer-wrapped carbon nanotubes on functionalized substrates. SOFT MATTER 2022; 18:4653-4659. [PMID: 35704922 DOI: 10.1039/d2sm00572g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Controlling the deposition of polymer-wrapped single-walled carbon nanotubes (s-CNTs) onto functionalized substrates can enable the fabrication of s-CNT arrays for semiconductor devices. In this work, we utilize classical atomistic molecular dynamics (MD) simulations to show that a simple descriptor of solvent structure near silica substrates functionalized by a wide variety of self-assembled monolayers (SAMs) can predict trends in the deposition of s-CNTs from toluene. Free energy calculations and experiments indicate that those SAMs that lead to maximum disruption of solvent structure promote deposition to the greatest extent. These findings are consistent with deposition being driven by solvent-mediated interactions that arise from SAM-solvent interactions, rather than direct s-CNT-SAM interactions, and will permit the rapid computational exploration of potential substrate designs for controlling s-CNT deposition and alignment.
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Affiliation(s)
- Zhizhang Shen
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA.
| | - Jonathan H Dwyer
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA.
| | - Jian Sun
- Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, USA
| | - Katherine R Jinkins
- Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, USA
| | - Michael S Arnold
- Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, USA
| | - Padma Gopalan
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA.
- Department of Materials Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, USA
| | - Reid C Van Lehn
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA.
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8
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Veerapandian S, Kim W, Kim J, Jo Y, Jung S, Jeong U. Printable inks and deformable electronic array devices. NANOSCALE HORIZONS 2022; 7:663-681. [PMID: 35660837 DOI: 10.1039/d2nh00089j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Deformable printed electronic array devices are expected to revolutionize next-generation electronics. However, although remarkable technological advances in printable inks and deformable electronic array devices have recently been achieved, technical challenges remain to commercialize these technologies. In this review article a brief introduction to printing methods highlighting significant research studies on ink formation for conductors, semiconductors, and insulators is provided, and the structural design and successful printing strategies of deformable electronic array devices are described. Successful device demonstrations are presented in the applications of passive- and active-matrix array devices. Finally, perspectives and technological challenges to be achieved are pointed out to print practically available deformable devices.
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Affiliation(s)
- Selvaraj Veerapandian
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea.
| | - Woojo Kim
- Department of Convergence IT Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea
| | - Jaehyun Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea.
| | - Youngmin Jo
- Department of Convergence IT Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea
| | - Sungjune Jung
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea.
- Department of Convergence IT Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea.
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9
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Lee GH, Lee YR, Kim H, Kwon DA, Kim H, Yang C, Choi SQ, Park S, Jeong JW, Park S. Rapid meniscus-guided printing of stable semi-solid-state liquid metal microgranular-particle for soft electronics. Nat Commun 2022; 13:2643. [PMID: 35551193 PMCID: PMC9098628 DOI: 10.1038/s41467-022-30427-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/28/2022] [Indexed: 12/14/2022] Open
Abstract
Liquid metal is being regarded as a promising material for soft electronics owing to its distinct combination of high electrical conductivity comparable to that of metals and exceptional deformability derived from its liquid state. However, the applicability of liquid metal is still limited due to the difficulty in simultaneously achieving its mechanical stability and initial conductivity. Furthermore, reliable and rapid patterning of stable liquid metal directly on various soft substrates at high-resolution remains a formidable challenge. In this work, meniscus-guided printing of ink containing polyelectrolyte-attached liquid metal microgranular-particle in an aqueous solvent to generate semi-solid-state liquid metal is presented. Liquid metal microgranular-particle printed in the evaporative regime is mechanically stable, initially conductive, and patternable down to 50 μm on various substrates. Demonstrations of the ultrastretchable (~500% strain) electrical circuit, customized e-skin, and zero-waste ECG sensor validate the simplicity, versatility, and reliability of this manufacturing strategy, enabling broad utility in the development of advanced soft electronics. In this article, meniscus-guided printing of polyelectrolyte-attached liquid metal particles to simultaneously achieve mechanical stability and initial electrical conductivity at high resolution is introduced.
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Affiliation(s)
- Gun-Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.,School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ye Rim Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hanul Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Do A Kwon
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyeonji Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Congqi Yang
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Siyoung Q Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.,KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seongjun Park
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.,KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae-Woong Jeong
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea. .,KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Steve Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea. .,KAIST Institute for Health Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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10
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Jouni M, Fedorko P, Celle C, Djurado D, Chenevier P, Faure-Vincent J. Conductivity vs functionalization in single-walled carbon nanotube films. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05016-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
AbstractDiazo functionalization is a chemical method that changes the conductance of metallic single-walled carbon nanotubes (SWCNTs) by disrupting the C–C double bonds. Its application to native mixtures of metallic and semiconducting SWCNTs is a promising way of large-scale production of semiconducting SWCNTs for use in electronics. This has been well studied on isolated SWCNTs, but the implications on the conductivity of SWCNT materials are still unclear. Here, we study the conductivity of such functionalized SWCNT films with a progressively decreased metallic/semiconducting ratio in a wide range of temperatures (4–300 K) to unravel the charge transport mechanisms of metallic and semiconducting SWCNT subnetworks to show how these components participate in the total conductivity of the films. At low functionalization degree (below 0.2 mol%), the conductivity is dominated by a subnetwork of metallic SWCNTs through two parallel mechanisms: a Luttinger liquid mechanism and a Variable Range Hopping process. Higher functionalization (over 0.4 mol%) destroys the Luttinger liquid mechanism, and a second parallel Variable Range Hopping process arises, attributed to the conduction through the semiconducting SWCNTs. At these high functionalization degrees, the SWCNT film behaves as a material with the desired semiconducting properties.
Graphical abstract
We studied the conductivity of chemically functionalized Single Walled Carbon Nanotube films with a progressively decreased metallic/semiconducting ratio in a wide range of temperatures (4–300 K) to unravel the charge transport mechanisms of metallic and semiconducting SWCNT subnetworks to show how these components participate in the total conductivity of the films.
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11
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Feng J, Qiu Y, Jiang L, Wu Y. Long-Range-Ordered Assembly of Micro-/Nanostructures at Superwetting Interfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106857. [PMID: 34908188 DOI: 10.1002/adma.202106857] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/03/2021] [Indexed: 06/14/2023]
Abstract
On-chip integration of solution-processable materials imposes stringent and simultaneous requirements of controlled nucleation and growth, tunable geometry and dimensions, and long-range-ordered assembly, which is challenging in solution process far from thermodynamic equilibrium. Superwetting interfaces, underpinned by programmable surface chemistry and topography, are promising for steering transport, dewetting, and microfluid dynamics of liquids, thus opening a new paradigm for micro-/nanostructure assembly in solution process. Herein, assembly methods on the basis of superwetting interfaces are reviewed for constructing long-range-ordered micro-/nanostructures. Confined capillary liquids, including capillary bridges and capillary corner menisci realized by controlling local wettability and surface topography, are highlighted for simultaneously attained deterministic patterning and long-range order. The versatility and robustness of confined capillary liquids are discussed with assembly of single-crystalline micro-/nanostructures of organic semiconductors, metal-halide perovskites, and colloidal-nanoparticle superlattices, which lead to enhanced device performances and exotic functionalities. Finally, a perspective for promising directions in this realm is provided.
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Affiliation(s)
- Jiangang Feng
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Department of Chemical and Biomolecular Sciences, National University of Singapore, Singapore, 117585, Singapore
| | - Yuchen Qiu
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Lei Jiang
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yuchen Wu
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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12
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Foti A, Venkatesan S, Lebental B, Zucchi G, Ossikovski R. Comparing Commercial Metal-Coated AFM Tips and Home-Made Bulk Gold Tips for Tip-Enhanced Raman Spectroscopy of Polymer Functionalized Multiwalled Carbon Nanotubes. NANOMATERIALS 2022; 12:nano12030451. [PMID: 35159798 PMCID: PMC8840094 DOI: 10.3390/nano12030451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023]
Abstract
Tip-enhanced Raman spectroscopy (TERS) combines the high specificity and sensitivity of plasmon-enhanced Raman spectroscopy with the high spatial resolution of scanning probe microscopy. TERS has gained a lot of attention from many nanoscience fields, since this technique can provide chemical and structural information of surfaces and interfaces with nanometric spatial resolution. Multiwalled carbon nanotubes (MWCNTs) are very versatile nanostructures that can be dispersed in organic solvents or polymeric matrices, giving rise to new nanocomposite materials, showing improved mechanical, electrical and thermal properties. Moreover, MWCNTs can be easily functionalized with polymers in order to be employed as specific chemical sensors. In this context, TERS is strategic, since it can provide useful information on the cooperation of the two components at the nanoscale for the optimization of the macroscopic properties of the hybrid material. Nevertheless, efficient TERS characterization relies on the geometrical features and material composition of the plasmonic tip used. In this work, after comparing the TERS performance of commercial Ag coated nanotips and home-made bulk Au tips on bare MWCNTs, we show how TERS can be exploited for characterizing MWCNTs mixed with conjugated fluorene copolymers, thus contributing to the understanding of the polymer/CNT interaction process at the local scale.
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Affiliation(s)
- Antonino Foti
- CNR—IPCF, Istituto per I Processi Chimico-Fisici, Viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
- Correspondence: (A.F.); (R.O.)
| | - Suriya Venkatesan
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
| | - Bérengère Lebental
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
- COSYS-LISIS, Université Gustave Eiffel, IFSTTAR, 77454 Marne-la-Vallée, France
| | - Gaël Zucchi
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
| | - Razvigor Ossikovski
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.V.); (B.L.); (G.Z.)
- Correspondence: (A.F.); (R.O.)
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13
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Jung S, Verma P, Robinson S, Beyer E, Hall H, Huelsenbeck L, Stone KH, Giri G. Meniscus Guided Coating and Evaporative Crystallization of UiO-66 Metal Organic Framework Thin Films. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sangeun Jung
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
| | - Prince Verma
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
| | - Sean Robinson
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
| | - Emily Beyer
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
| | - Hailey Hall
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
| | - Luke Huelsenbeck
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
| | - Kevin H. Stone
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Gaurav Giri
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904-4746, United States
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14
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Kim KT, Lee KW, Moon S, Park JB, Park CY, Nam SJ, Kim J, Lee MJ, Heo JS, Park SK. Conformally Gated Surface Conducting Behaviors of Single-Walled Carbon Nanotube Thin-Film-Transistors. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3361. [PMID: 34204507 PMCID: PMC8234559 DOI: 10.3390/ma14123361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/31/2021] [Accepted: 06/11/2021] [Indexed: 11/16/2022]
Abstract
Semiconducting single-walled carbon nanotubes (s-SWCNTs) have gathered significant interest in various emerging electronics due to their outstanding electrical and mechanical properties. Although large-area and low-cost fabrication of s-SWCNT field effect transistors (FETs) can be easily achieved via solution processing, the electrical performance of the solution-based s-SWCNT FETs is often limited by the charge transport in the s-SWCNT networks and interface between the s-SWCNT and the dielectrics depending on both s-SWCNT solution synthesis and device architecture. Here, we investigate the surface and interfacial electro-chemical behaviors of s-SWCNTs. In addition, we propose a cost-effective and straightforward process capable of minimizing polymers bound to s-SWCNT surfaces acting as an interfering element for the charge carrier transport via a heat-assisted purification (HAP). With the HAP treated s-SWCNTs, we introduced conformal dielectric configuration for s-SWCNT FETs, which are explored by a carefully designed wide array of electrical and chemical characterizations with finite-element analysis (FEA) computer simulation. For more favorable gate-field-induced surface and interfacial behaviors of s-SWCNT, we implemented conformally gated highly capacitive s-SWCNT FETs with ion-gel dielectrics, demonstrating field-effect mobility of ~8.19 cm2/V⋅s and on/off current ratio of ~105 along with negligible hysteresis.
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Affiliation(s)
- Kyung-Tae Kim
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
| | - Keon Woo Lee
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
| | - Sanghee Moon
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
| | - Joon Bee Park
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
| | - Chan-Yong Park
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
| | - Seung-Ji Nam
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
| | - Jaehyun Kim
- Department of Chemistry and Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA;
| | - Myoung-Jae Lee
- Convergence Research Institute, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea;
| | - Jae Sang Heo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Sung Kyu Park
- Department of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea; (K.-T.K.); (K.W.L.); (S.M.); (J.B.P.); (C.-Y.P.); (S.-J.N.)
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15
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Mirka B, Rice NA, Williams P, Tousignant MN, Boileau NT, Bodnaryk WJ, Fong D, Adronov A, Lessard BH. Excess Polymer in Single-Walled Carbon Nanotube Thin-Film Transistors: Its Removal Prior to Fabrication Is Unnecessary. ACS NANO 2021; 15:8252-8266. [PMID: 33831298 DOI: 10.1021/acsnano.0c08584] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ultrapure semiconducting single-walled carbon nanotube (sc-SWNT) dispersions produced through conjugated polymer sorting are ideal candidates for the fabrication of solution-processed organic electronic devices on a commercial scale. Protocols for sorting and dispersing ultrapure sc-SWNTs with conjugated polymers for thin-film transistor (TFT) applications have been well refined. Conventional wisdom dictates that removal of excess unbound polymer through filtration or centrifugation is necessary to produce high-performance TFTs. However, this is time-consuming, wasteful, and resource-intensive. In this report, we challenge this paradigm and demonstrate that excess unbound polymer during semiconductor film fabrication is not necessarily detrimental to device performance. Over 1200 TFT devices were fabricated from 30 unique polymer-sorted SWNT dispersions, prepared using two different alternating copolymers. Detailed Raman spectroscopy, x-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM) studies of the random-network semiconductor films demonstrated that a simple solvent rinse during TFT fabrication was sufficient to remove unbound polymer from the sc-SWNT films, thus eliminating laborious polymer removal before TFT fabrication. Furthermore, below a threshold polymer concentration, the presence of excess polymer during fabrication did not significantly impede TFT performance. Preeminent performance was achieved for devices prepared from native polymer-sorted SWNT dispersions containing the "original" amount of excess unbound polymer (immediately following enrichment). Lastly, we developed an open-source Machine Learning algorithm to quantitatively analyze AFM images of SWNT films for surface coverage, number of tubes, and tube alignment.
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Affiliation(s)
- Brendan Mirka
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Nicole A Rice
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Phillip Williams
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Mathieu N Tousignant
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Nicholas T Boileau
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - William J Bodnaryk
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street W, Hamilton, Ontario, Canada L8S 4M1
| | - Darryl Fong
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street W, Hamilton, Ontario, Canada L8S 4M1
| | - Alex Adronov
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street W, Hamilton, Ontario, Canada L8S 4M1
| | - Benoît H Lessard
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
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16
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Dwyer JH, Suresh A, Jinkins KR, Zheng X, Arnold MS, Berson A, Gopalan P. Chemical and topographical patterns combined with solution shear for selective-area deposition of highly-aligned semiconducting carbon nanotubes. NANOSCALE ADVANCES 2021; 3:1767-1775. [PMID: 36132553 PMCID: PMC9419110 DOI: 10.1039/d1na00033k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/05/2021] [Indexed: 06/15/2023]
Abstract
Selective deposition of semiconducting carbon nanotubes (s-CNTs) into densely packed, aligned arrays of individualized s-CNTs is necessary to realize their potential in semiconductor electronics. We report the combination of chemical contrast patterns, topography, and pre-alignment of s-CNTs via shear to achieve selective-area deposition of aligned arrays of s-CNTs. Alternate stripes of surfaces favorable and unfavorable to s-CNT adsorption were patterned with widths varying from 2000 nm down to 100 nm. Addition of topography to the chemical contrast patterns combined with shear enabled the selective-area deposition of arrays of quasi-aligned s-CNTs (∼14°) even in patterns that are wider than the length of individual nanotubes (>500 nm). When the width of the chemical and topographical contrast patterns is less than the length of individual nanotubes (<500 nm), confinement effects become dominant enabling the selective-area deposition of much more tightly aligned s-CNTs (∼7°). At a trench width of 100 nm, we demonstrate the lowest standard deviation in alignment degree of 7.6 ± 0.3° at a deposition shear rate of 4600 s-1, while maintaining an individualized s-CNT density greater than 30 CNTs μm-1. Chemical contrast alone enables selective-area deposition, but chemical contrast in addition to topography enables more effective selective-area deposition and stronger confinement effects, with the advantage of removal of nanotubes deposited in spurious areas via selective lift-off of the topographical features. These findings provide a methodology that is inherently scalable, and a means to deposit spatially selective, aligned s-CNT arrays for next-generation semiconducting devices.
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Affiliation(s)
- Jonathan H Dwyer
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706 USA
| | - Anjali Suresh
- Department of Materials Science and Engineering, University of Wisconsin-Madison 1509 University Avenue Madison WI 53706 USA
| | - Katherine R Jinkins
- Department of Materials Science and Engineering, University of Wisconsin-Madison 1509 University Avenue Madison WI 53706 USA
| | - Xiaoqi Zheng
- Department of Materials Science and Engineering, University of Wisconsin-Madison 1509 University Avenue Madison WI 53706 USA
| | - Michael S Arnold
- Department of Materials Science and Engineering, University of Wisconsin-Madison 1509 University Avenue Madison WI 53706 USA
| | - Arganthaël Berson
- Multiphase Flow Visualization and Analysis Laboratory (MFVAL), University of Wisconsin-Madison 1500 Engineering Drive Madison WI 53706 USA
| | - Padma Gopalan
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706 USA
- Department of Materials Science and Engineering, University of Wisconsin-Madison 1509 University Avenue Madison WI 53706 USA
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17
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Kumar TV, Rajendran J, Nagarajan RD, Jeevanandam G, Reshetilov AN, Sundramoorthy AK. Selective Chemistry-Based Separation of Semiconducting Single-Walled Carbon Nanotubes and Alignment of the Nanotube Array Network under Electric Field for Field-Effect Transistor Applications. ACS OMEGA 2021; 6:5146-5157. [PMID: 33681556 PMCID: PMC7931199 DOI: 10.1021/acsomega.0c04607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Semiconducting single-walled carbon nanotubes (s-SWCNTs) are considered as a replacement for silicon in field-effect transistors (FETs), solar cells, logic circuits, and so forth, because of their outstanding electronic, optical, and mechanical properties. Herein, we have studied the reaction of pristine SWCNTs dispersed in a pluronic F-68 (PF-68) polymer solution with para-amino diphenylamine diazonium sulfate (PADDS) to separate nanotubes based on their metallicity. The preferential selectivity of the reactions was monitored by changes in the semiconducting (S22 and S33) and metallic (M11) bands by ultraviolet-visible-near infrared spectroscopy. Metallic selectivity depended on the concentrations of PADDS, reaction time, and the solution pH. Furthermore, separation of pure s-SWCNTs was confirmed by Raman spectroscopy and Fourier-transform infrared spectroscopy. After the removal of metallic SWCNTs, direct current electric field was applied to the pure s-SWCNT solution, which effectively directed the nanotubes to align in one direction as nanotube arrays with a longer length and high density. After that, electrically aligned s-SWCNT solution was cast on a silicon substrate, and the length of the nanotube arrays was measured as ∼2 to ∼14 μm with an areal density of ∼2 to ∼20 tubes/μm of s-SWCNTs. Next, electrically aligned s-SWCNT arrays were deposited on the channel of the FET device by drop-casting. Field-emission scanning electron microscopy and electrical measurements have been carried out to test the performance of the aligned s-SWCNTs/FETs. The fabricated FETs with a channel length of 10 μm showed stable electrical properties with a field-effect mobility of 30.4 cm2/Vs and a log10 (I on/I off) current ratio of 3.96. We envisage that this new chemical-based separation method and electric field-assisted alignment could be useful to obtain a high-purity and aligned s-SWCNT array network for the fabrication of high-performance FETs to use in digital and analog electronics.
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Affiliation(s)
| | - Jerome Rajendran
- Department
of Chemistry, SRM Institute of Science and
Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Ramila D. Nagarajan
- Department
of Chemistry, SRM Institute of Science and
Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Gayathri Jeevanandam
- Department
of Chemistry, SRM Institute of Science and
Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Anatoly N. Reshetilov
- G.K.
Skryabin Institute of Biochemistry and Physiology of Microorganisms
of the Russian Academy of Sciences (IBPM RAS), Subdivision of “Federal
Research Center Pushchino Biological Research Center of the Russian
Academy of Sciences”(FRC PBRC RAS), 142290, Pushchino, Moscow oblast, Russia
| | - Ashok K. Sundramoorthy
- Department
of Chemistry, SRM Institute of Science and
Technology, Kattankulathur 603203, Tamil Nadu, India
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18
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Li C, Lan C, Guo M, Wang N, Ma Y. Wicking-Driven Evaporation Self-Assembly of Carbon Nanotubes on Fabrics: Generating Controlled Orientational Structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13963-13970. [PMID: 33174745 DOI: 10.1021/acs.langmuir.0c02436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanostructures with orientational order exhibit excellent electrical and optical properties; however, their construction on complex fabrics is challenging. Here, we demonstrate the potential of wicking-driven evaporation self-assembly in the oriented arrangement of carbon nanotubes (CNTs) on fabrics. The solution-evaporation self-assembly in combination with the fabric wicking effect leads to convective flows along the fibers, which makes it possible to prepare orientational nanostructures over large fabric surface areas. The orientation of CNTs is controlled by the fluid drag force from the convective flow during drying, thus the interaction between the CNT and the solution is crucial. We show that the nanostructures of CNTs on fibers depend, for example, on the evaporation temperature, component concentration, and solution pH. Weakening the viscous connection of the fluid with CNTs can lead to an interesting eddy nanostructure of CNTs. The electrical conductivity of the assembled fabrics increases strongly with the degree of orientation and the assembly cycles of CNTs. In this work, the large-scale orientational order of nanomaterial achieved by wicking-driven evaporation self-assembly offers a new strategy for constructing three-dimensional oriented conductive networks in electronic textiles.
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Affiliation(s)
- Chenglong Li
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Chuntao Lan
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Min Guo
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Ni Wang
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
| | - Ying Ma
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
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19
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The Use of Gravity Filtration of Carbon Nanotubes from Suspension to Produce Films with Low Roughness for Carbon Nanotube/Silicon Heterojunction Solar Device Application. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10186415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The morphology of carbon nanotube (CNT) films is an important factor in the performance of CNT/silicon (CNT/Si) heterojunction solar devices. Films have generally been prepared via vacuum filtration from aqueous suspensions. Whilst this enables strong films to be formed quickly, they are highly disordered on the micron scale, with many charge traps and gaps forming in the films. It has been previously established that lowering the filtration speed enables more ordered films to be formed. The use of slow gravity filtration to improve the morphology of CNT films used in the CNT/Si device is reported here. It was found that slow filtration causes significant macroscale inhomogeneity in the CNT films, with concentrated thick regions, surrounded by larger thinner areas. By using atomic force microscopy (AFM), scanning electron microscopy (SEM), and polarised Raman spectroscopy, it was determined that there was no large improvement in directional organisation of the CNTs on the microscale. However, the films were found to be much smoother on the microscale, with arithmetic and root mean square average height deviation values roughly 3 times lower for slow-filtered films compared to fast-filtered films. A comparison was performed with CNT-Si solar cells fabricated with both slow and fast-filtered single-walled CNTs (SWCNT) films. It was found that slow filtration can produce similar photovoltaic results with thinner films. The results demonstrate that film morphology, even without improved CNT alignment, can lead to significant improvement in device performance in some applications. However, slow filtration did not form films of uniform light transmittance over an extended area, causing an increase in the variation in performance between individual devices compared to fast-filtered films.
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Park B, Jang J, Kim H, Seo J, Yoo H, Kim T, Hong Y. Dense Assembly of Finely Patterned Semiconducting Single-Walled Carbon Nanotubes via a Selective Transfer Method of Nanotube-Attracting Layers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38441-38450. [PMID: 32790276 DOI: 10.1021/acsami.0c04612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Development of technology for assembled single-walled carbon nanotube (SWCNT) film with the fine resolution is an essential technique for penetrating practical electronic applications. A promising approach is the assembly method by adding a chemical-functionalizing substrate to enhance affinity between the SWCNTs and the substrate. However, the various introduced approaches for solution-based assembly have suffered from low SWCNT deposition selectivity or low SWCNT deposition density. Herein, we demonstrated a facile method for selectively assembling semiconducting SWCNT network on the substrate. The substrate was prepared via a transfer printing of a poly-l-lysine (PLL)-coated poly(dimethylsiloxane) (PDMS) stamp. The thermal-assisted transfer method enabled an ultrafine PLL pattern (≤4 μm) and a high transfer yield (96.5%) by only one-time stamping without a change of the SWCNT-attracting nature. So, semiconducting SWCNTs were deposited on the patterned regions selectively and precisely. The benefit of the patterned semiconducting SWCNTs was lowering leakage current and turn-on voltage in the transfer characteristics by suppressing attachment of unnecessary SWCNT network. They showed excellent electrical performance, a log10(Ion/Ioff) ratio of 4.76, and an average value of linear field-effect mobility of 7.56 cm2/(V s). This research provides a simple but high-quality assembling technique of semiconducting SWCNTs, thereby improving the feasibility of solution-processed SWCNT-TFTs.
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Affiliation(s)
- Boik Park
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Jongsu Jang
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Hyeonggyu Kim
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Jiseok Seo
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Hyunjun Yoo
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Taehoon Kim
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Yongtaek Hong
- Department of Electrical and Computer Engineering (ECE), Inter-University Semiconductor Research Center (ISRC), Seoul National University, Seoul 08826, Republic of Korea
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Wang J, Lei T. Separation of Semiconducting Carbon Nanotubes Using Conjugated Polymer Wrapping. Polymers (Basel) 2020; 12:E1548. [PMID: 32668780 PMCID: PMC7407812 DOI: 10.3390/polym12071548] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022] Open
Abstract
In the past two decades, single-walled carbon nanotubes (SWNTs) have been explored for electronic applications because of their high charge carrier mobility, low-temperature solution processability and mechanical flexibility. Semiconducting SWNTs (s-SWNTs) are also considered an alternative to traditional silicon-based semiconductors. However, large-scale, as-produced SWNTs have poor solubility, and they are mixtures of metallic SWNTs (m-SWNTs) and s-SWNTs, which limits their practical applications. Conjugated polymer wrapping is a promising method to disperse and separate s-SWNTs, due to its high selectivity, high separation yield and simplicity of operation. In this review, we summarize the recent progress of the conjugated polymer wrapping method, and discuss possible separation mechanisms for s-SWNTs. We also discuss various parameters that may affect the selectivity and sorting yield. Finally, some electronic applications of polymer-sorted s-SWNTs are introduced. The aim of this review is to provide polymer chemist a basic concept of polymer based SWNT separation, as well as some polymer design strategies, influential factors and potential applications.
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Affiliation(s)
| | - Ting Lei
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Beijing Key Laboratory for Magnetoelectric Materials and Devices, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China;
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Lan C, Guo M, Li C, Qiu Y, Ma Y, Sun J. Axial Alignment of Carbon Nanotubes on Fibers To Enable Highly Conductive Fabrics for Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7477-7485. [PMID: 31961653 DOI: 10.1021/acsami.9b21698] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Conductive coatings show great promise for next-generation electromagnetic interference (EMI) shielding challenges on textile; however, their stringent requirements for electrical conductivity are difficult to meet by conventional approaches of increasing the loading and homogeneity of conductive nanofillers. Here, the axial alignment of carbon nanotubes (CNTs) on fibers that were obtained by spontaneous capillary-driven self-assembly is shown on commercial cotton fabrics, and its great potential for EMI shielding is demonstrated. The aligned CNTs structurally optimize the conductive network on fabrics and yield an 81-fold increase in electrical conductivity per unit of CNT, compared with the disordered CNT microstructure. The high-efficiency electrical conductivity allows a several-micron-thick coating on insulating fabrics to endow an EMI shielding effectiveness of 21.5 dB in the X band and 20.8 dB in the Ku band, which meets the standard shielding requirement in commercial applications. It is among the minimum reported thicknesses for conductive nanocomposite coatings to date. Moreover, the coated fabrics with aligned CNTs possess a desirable stability upon bending, scratching, stripping, and even washing, which is attributed to the dense CNT packing in the aligned microarchitecture. This work presents the anisotropic structure on large areas by self-assembly, offering new opportunities for next-generation portable and wearable electronic devices.
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Affiliation(s)
- Chuntao Lan
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , P. R. China
| | - Min Guo
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , P. R. China
| | - Chenglong Li
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , P. R. China
| | - Yiping Qiu
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , P. R. China
| | - Ying Ma
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles , Donghua University , Shanghai 201620 , P. R. China
- Innovation Center for Textile Science and Technology , Donghua University , Shanghai 200051 , P. R. China
| | - Junqi Sun
- State Key Laboratory of Superamolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
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Hu H, Wang S, Feng X, Pauly M, Decher G, Long Y. In-plane aligned assemblies of 1D-nanoobjects: recent approaches and applications. Chem Soc Rev 2020; 49:509-553. [DOI: 10.1039/c9cs00382g] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
One-dimensional (1D) nanoobjects have strongly anisotropic physical properties which are averaged out and cannot be exploited in disordered systems. We reviewed the in plane alignment approaches and potential applications with perspectives shared.
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Affiliation(s)
- Hebing Hu
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE)
- Nanomaterials for Energy and Energy-Water Nexus (NEW)
| | - Shancheng Wang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE)
- Nanomaterials for Energy and Energy-Water Nexus (NEW)
| | - Xueling Feng
- Key Laboratory of Science and Technology of Eco-Textile
- Ministry of Education
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Matthias Pauly
- Université de Strasbourg
- CNRS
- Institut Charles Sadron
- F-67000 Strasbourg
- France
| | - Gero Decher
- Université de Strasbourg
- CNRS
- Institut Charles Sadron
- F-67000 Strasbourg
- France
| | - Yi Long
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore-HUJ Alliance for Research and Enterprise (SHARE)
- Nanomaterials for Energy and Energy-Water Nexus (NEW)
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Large-scale patterning of π-conjugated materials by meniscus guided coating methods. Adv Colloid Interface Sci 2020; 275:102080. [PMID: 31809990 DOI: 10.1016/j.cis.2019.102080] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/30/2019] [Accepted: 11/20/2019] [Indexed: 11/21/2022]
Abstract
Printed organic electronics has attracted considerable interest in recent years as it enables the fabrication of large-scale, low-cost electronic devices, and thus offers significant possibilities in terms of developing new applications in various fields. Easy processing is a prerequisite for the development of low-cost, flexible and printed plastics electronics. Among processing techniques, meniscus guided coating methods are considered simple, efficient, and low-cost methods to fabricate electronic devices in industry. One of the major challenges is the control of thin film morphology, molecular orientations and directional alignment of polymer films during coating processes. Herein, the recent progress of emerging field of meniscus guided printing organic semiconductor materials is discussed. The first part of this report briefly summarizes recent advances in meniscus guided coating techniques. The second part discusses periodic deposits and patterned deposition at moving contact lines, where the mass-transport influences film morphology due to convection at the triple contact line. The last section summarizes our strategy to fabricate large-scale patterning of π-conjugated polymers using meniscus guided method.
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Corletto A, Shapter JG. Nanoscale Patterning of Carbon Nanotubes: Techniques, Applications, and Future. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 8:2001778. [PMID: 33437571 PMCID: PMC7788638 DOI: 10.1002/advs.202001778] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/30/2020] [Indexed: 05/09/2023]
Abstract
Carbon nanotube (CNT) devices and electronics are achieving maturity and directly competing or surpassing devices that use conventional materials. CNTs have demonstrated ballistic conduction, minimal scaling effects, high current capacity, low power requirements, and excellent optical/photonic properties; making them the ideal candidate for a new material to replace conventional materials in next-generation electronic and photonic systems. CNTs also demonstrate high stability and flexibility, allowing them to be used in flexible, printable, and/or biocompatible electronics. However, a major challenge to fully commercialize these devices is the scalable placement of CNTs into desired micro/nanopatterns and architectures to translate the superior properties of CNTs into macroscale devices. Precise and high throughput patterning becomes increasingly difficult at nanoscale resolution, but it is essential to fully realize the benefits of CNTs. The relatively long, high aspect ratio structures of CNTs must be preserved to maintain their functionalities, consequently making them more difficult to pattern than conventional materials like metals and polymers. This review comprehensively explores the recent development of innovative CNT patterning techniques with nanoscale lateral resolution. Each technique is critically analyzed and applications for the nanoscale-resolution approaches are demonstrated. Promising techniques and the challenges ahead for future devices and applications are discussed.
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Affiliation(s)
- Alexander Corletto
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQueensland4072Australia
| | - Joseph G. Shapter
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQueensland4072Australia
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Zhao X, Zhou C, Liu M. Self-assembled structures of halloysite nanotubes: towards the development of high-performance biomedical materials. J Mater Chem B 2019; 8:838-851. [PMID: 31830201 DOI: 10.1039/c9tb02460c] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Halloysite nanotubes (HNTs), 1D natural tubular nanoparticles, exhibit a high aspect ratio, empty lumen, high adsorption ability, good biocompatibility, and high biosafety, which have attracted researchers' attention in applications of the biomedical area. HNTs can be readily dispersed in water due to their negatively charged surface and good hydrophilicity. The unique rod-like structure and surface properties give HNTs assembly ability into ordered hierarchical structures. In this review, the self-assembly approaches of HNTs including evaporation induced self-assembly by a "coffee-ring" mechanism, shear force induced self-assembly, and electric field force induced self-assembly were introduced. In addition, HNT self-assembly on polymeric substrates and biological substrates including hair, cells, and zebrafish embryos was discussed. These assembly processes are related to noncovalent interactions such as electrostatic, hydrogen bonding, and van der Waals forces or electron-transfer reactions. Moreover, the applications of self-assembled HNT patterns in biomedical areas such as capture of circulating tumor cells, guiding oriented cell growth, controlling cell germination, and delivery of drugs or nutrients were discussed and highlighted. Finally, challenges and future directions of assembly of HNTs were introduced. This review will inspire researchers in the design and fabrication of functional biodevices based on HNTs for tissue engineering, cancer diagnosis/therapy, and personal healthcare products.
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Affiliation(s)
- Xiujuan Zhao
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Changren Zhou
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Mingxian Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
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Wei X, Maimaitiyiming X. Enrichment of highly pure large-diameter semiconducting SWCNTs by polyfluorene-containing pyrimidine ring. RSC Adv 2019; 9:32753-32758. [PMID: 35529719 PMCID: PMC9073157 DOI: 10.1039/c9ra06819h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 09/27/2019] [Indexed: 01/08/2023] Open
Abstract
The use of copolymers to extract and purify semiconducting SWCNTs (sc-SWCNTs) and metallic SWCNTs (m-SWCNTs) is widely employed. In this paper, the performances of two pyrimidine-alt-dioctylfluorene conjugated polymers in the enrichment of semiconducting SWCNTs are compared, and the subtle structural effects on them are discussed. It was found that both pyrimidine-polymers were more effective in wrapping the semiconducting SWCNTs than the metallic SWCNTs under the co-action of the pyrimidine and fluorene rings. Moreover, methyl groups on the pyrimidine ring of the polymer slightly contributed to the semiconducting purity, and the minor differences of sc-SWCNTs extraction between two pyrimidine-polymers are compared. Additionally, the average diameter of the selected SWCNTs is larger than that of the raw SWCNTs. The experimental results show the excellent selectivity for sc-SWCNT from both co-polymers: the index Φ i values for determining the purity of sc-SWCNTs were increased from 0.408 for P2 to 0.465 for P1, of which the selected sc-SWCNT purity is up to 99.9%. The resulting purity and the inexpensive availability of pyrimidine co-polymers make them suitable to be considered for effective sc-SWCNT enrichment.
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Affiliation(s)
- Xia Wei
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Key Laboratory of Oil and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi 830046 Xinjiang P. R. China
| | - Xieraili Maimaitiyiming
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, Institute of Applied Chemistry, Key Laboratory of Oil and Gas Fine Chemicals, Educational Ministry of China, School of Chemistry and Chemical Engineering, Xinjiang University Urumqi 830046 Xinjiang P. R. China
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Dwyer JH, Shen Z, Jinkins KR, Wei W, Arnold MS, Van Lehn RC, Gopalan P. Solvent-Mediated Affinity of Polymer-Wrapped Single-Walled Carbon Nanotubes for Chemically Modified Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12492-12500. [PMID: 31461294 DOI: 10.1021/acs.langmuir.9b02217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Semiconducting single-walled carbon nanotube (s-CNT) arrays are being explored for next-generation semiconductor electronics. Even with the multitude of alignment and spatially localized s-CNT deposition methods designed to control s-CNT deposition, fundamental understanding of the driving forces for s-CNT deposition is still lacking. The individual roles of the dispersant, solvent, target substrate composition, and the s-CNT itself are not completely understood because it is difficult to decouple deposition parameters. Here, we study poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-co-(6,6'-[2,2'-{bipyridine}])] (PFO-BPy)-wrapped s-CNT deposition from solution onto a chemically modified substrate. We fabricate various self-assembled monolayers (SAMs) to gain a greater understanding of substrate effects on PFO-BPy-wrapped s-CNT deposition. We observe that s-CNT deposition is dependent on both the target substrate and s-CNT dispersion solvent. To complement the experiments, molecular dynamics simulations of PFO-BPy-wrapped s-CNT deposition on two different SAMs are performed to obtain mechanistic insights into the effect of the substrate and solvent on s-CNT deposition. We find that the global free-energy minimum associated with favorable s-CNT adsorption occurs for a configuration in which the minimum of the solvent density around the s-CNT coincides with the minimum of the solvent density above a SAM-grafted surface, indicating that solvent structure near a SAM-grafted surface determines the adsorption free-energy landscape driving s-CNT deposition. Our results will help guide informative substrate design for s-CNT array fabrication in semiconductor devices.
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Affiliation(s)
- Jonathan H Dwyer
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , Wisconsin 53706 , United States
| | - Zhizhang Shen
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , Wisconsin 53706 , United States
| | - Katherine R Jinkins
- Department of Materials Science and Engineering , University of Wisconsin-Madison , 1509 University Avenue , Madison , Wisconsin 53706 , United States
| | - Wei Wei
- Department of Materials Science and Engineering , University of Wisconsin-Madison , 1509 University Avenue , Madison , Wisconsin 53706 , United States
| | - Michael S Arnold
- Department of Materials Science and Engineering , University of Wisconsin-Madison , 1509 University Avenue , Madison , Wisconsin 53706 , United States
| | - Reid C Van Lehn
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , Wisconsin 53706 , United States
| | - Padma Gopalan
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , Wisconsin 53706 , United States
- Department of Materials Science and Engineering , University of Wisconsin-Madison , 1509 University Avenue , Madison , Wisconsin 53706 , United States
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Zhou D, Hao J, Clark A, Kim K, Zhu L, Liu J, Cheng X, Li B. Sono-Assisted Surface Energy Driven Assembly of 2D Materials on Flexible Polymer Substrates: A Green Assembly Method Using Water. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33458-33464. [PMID: 31430115 DOI: 10.1021/acsami.9b10469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The challenges in achieving a green and scalable integration of two-dimensional (2D) materials with flexible polymer substrates present a major barrier for the application of 2D materials, such as graphene, MoS2, and h-BN for flexible devices. Here, we create a sono-assisted surface energy driven assembly (SASEDA) method that can achieve foot-scale to micrometer-scale assembly of 2D materials, form a conductive network in as short as 10 s, and build hierarchical and hybrid flexible devices such as sensors, resistors, and capacitors by using water as the dispersion solvent. SASEDA highlights two counterintuitive innovations. First, we use an "unfavorable" solvent (i.e., water) for both 2D materials (e.g., graphene, MoS2, and h-BN) and polymer substrates (e.g., polydimethylsiloxane) to drive the assembly process. Second, we use a weak sono-field (0.3 W/cm2) generated by a regular sonication bath cleaner to enhance the assembly efficiency and reorganize and unify the assembly network. This method and its principle pave the way toward affordable large-scale 2D material-based flexible devices.
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Affiliation(s)
- Dong Zhou
- Department of Mechanical Engineering , Villanova University , Villanova , Pennsylvania 19085 , United States
| | - Ji Hao
- National Renewable Energy Laboratory , Golden , Colorado 80401 , United States
| | - Andy Clark
- Department of Physics , Bryn Mawr College , Bryn Mawr , Pennsylvania 19010 , United States
| | - Kyunghoon Kim
- Department of Mechanical Engineering and Aerospace Engineering , North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Long Zhu
- Department of Mechanical Engineering , Villanova University , Villanova , Pennsylvania 19085 , United States
| | - Jun Liu
- Department of Mechanical Engineering and Aerospace Engineering , North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Xuemei Cheng
- Department of Physics , Bryn Mawr College , Bryn Mawr , Pennsylvania 19010 , United States
| | - Bo Li
- Department of Mechanical Engineering , Villanova University , Villanova , Pennsylvania 19085 , United States
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Kulak MR, Schipper DJ. Carbon nanotube alignment and sorting: Attempting a sulfur moiety as anchoring component. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2019.1603234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Monika R. Kulak
- Department of Chemistry, University of Waterloo, Waterloo, ON, Canada
| | - Derek J. Schipper
- Department of Chemistry, University of Waterloo, Waterloo, ON, Canada
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Bian R, Meng L, Guo C, Tang Z, Liu H. A Facile One-Step Approach for Constructing Multidimensional Ordered Nanowire Micropatterns via Fibrous Elastocapillary Coalescence. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900534. [PMID: 30882936 DOI: 10.1002/adma.201900534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/26/2019] [Indexed: 06/09/2023]
Abstract
Nanowire (NW) based micropatterns have attracted research interests for their applications in electric microdevices. Particularly, aligning NWs represents an important process due to the as-generated integrated physicochemical advantages. Here, a facile and general strategy is developed to align NWs using fibrous elastocapillary coalescence of carbon nanotube arrays (ACNTs), which enables constructing multidimensional ordered NW micropatterns in one step without any external energy input. It is proposed that the liquid film of NW solution is capable of shrinking unidirectionally on the top of ACNTs, driven by the dewetting-induced elastocapillary coalescence of the ACNTs. Consequently, the randomly distributed NWs individually rotate and move into dense alignment. Meanwhile, the aggregating and bundling of ACNTs is helpful to produce carbon nanotube (CNT) yarns connecting neighboring bundles. Thus, a micropatterned NW network composed of a top-layer of horizontally aligned NWs and an under-layer of vertical ACNT bundles connected by CNT yarns is prepared, showing excellent performance in sensing external pressure with a sensitivity of 0.32 kPa-1 . Moreover, the aligned NWs can be transferred onto various substrates for constructing electronic circuits. The strategy is applicable for aligning various NWs of Ag, ZnO, Al2 O3 , and even living microbes. The result may offer new inspiration for fabricating NW-based functional micropatterns.
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Affiliation(s)
- Ruixin Bian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Lili Meng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Cheng Guo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Zhongxue Tang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Huan Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, 100191, China
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Bae J, Lee J, Zhou Q, Kim T. Micro-/Nanofluidics for Liquid-Mediated Patterning of Hybrid-Scale Material Structures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1804953. [PMID: 30600554 DOI: 10.1002/adma.201804953] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/17/2018] [Indexed: 06/09/2023]
Abstract
Various materials are fabricated to form specific structures/patterns at the micro-/nanoscale, which exhibit additional functions and performance. Recent liquid-mediated fabrication methods utilizing bottom-up approaches benefit from micro-/nanofluidic technologies that provide a high controllability for manipulating fluids containing various solutes, suspensions, and building blocks at the microscale and/or nanoscale. Here, the state-of-the-art micro-/nanofluidic approaches are discussed, which facilitate the liquid-mediated patterning of various hybrid-scale material structures, thereby showing many additional advantages in cost, labor, resolution, and throughput. Such systems are categorized here according to three representative forms defined by the degree of the free-fluid-fluid interface: free, semiconfined, and fully confined forms. The micro-/nanofluidic methods for each form are discussed, followed by recent examples of their applications. To close, the remaining issues and potential applications are summarized.
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Affiliation(s)
- Juyeol Bae
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jongwan Lee
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Qitao Zhou
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Taesung Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
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Koo JH, Song JK, Kim DH. Solution-processed thin films of semiconducting carbon nanotubes and their application to soft electronics. NANOTECHNOLOGY 2019; 30:132001. [PMID: 30605897 DOI: 10.1088/1361-6528/aafbbe] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Semiconducting single-walled carbon nanotube (SWNT) networks are promising for use as channel materials in field-effect transistors (FETs) in next-generation soft electronics, owing to their high intrinsic carrier mobility, mechanical flexibility, potential for low-cost production, and good processability. In this article, we review the recent progress related to carbon nanotube (CNT) devices in soft electronics by describing the materials and devices, processing methods, and example applications in soft electronic systems. First, solution-processed semiconducting SWNT deposition methods along with doping techniques used to achieve stable complementary metal-oxide-semiconductor devices are discussed. Various strategies for developing high-performance SWNT-based FETs, such as the proper material choices for the gates, dielectrics, and sources/drains of FETs, and methods of improving FET performance, such as hysteresis repression in SWNT-based FETs, are described next. These SWNT-based FETs have been used in flexible, stretchable, and wearable electronic devices to realize functionalities that could not be achieved using conventional silicon-based devices. We conclude this review by discussing the challenges faced by and outlook for CNT-based soft electronics.
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Affiliation(s)
- Ja Hoon Koo
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea. Interdisciplinary Program for Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
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Chung S, Cho K, Lee T. Recent Progress in Inkjet-Printed Thin-Film Transistors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1801445. [PMID: 30937255 PMCID: PMC6425446 DOI: 10.1002/advs.201801445] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/25/2018] [Indexed: 05/19/2023]
Abstract
Drop-on-demand inkjet printing is one of the most attractive techniques from a manufacturing perspective due to the possibility of fabrication from a digital layout at ambient conditions, thus leading to great opportunities for the realization of low-cost and flexible thin-film devices. Over the past decades, a variety of inkjet-printed applications including thin-film transistors (TFTs), radio-frequency identification devices, sensors, and displays have been explored. In particular, many research groups have made great efforts to realize high-performance TFTs, for application as potential driving components of ubiquitous wearable electronics. Although there are still challenges to enable the commercialization of printed TFTs beyond laboratory-scale applications, the field of printed TFTs still attracts significant attention, with remarkable developments in soluble materials and printing methodology. Here, recent progress in printing-based TFTs is presented from materials to applications. Significant efforts to improve the electrical performance and device-yield of printed TFTs to match those of counterparts fabricated using conventional deposition or photolithography methods are highlighted. Moreover, emerging low-dimension printable semiconductors, including carbon nanotubes and transition metal dichalcogenides as well as mature semiconductors, and new-concept printed switching devices, are also discussed.
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Affiliation(s)
- Seungjun Chung
- Photo‐Electronic Hybrids Research CenterKorea Institute of Science and TechnologyHwarang‐ro 14‐gil 5Seongbuk‐guSeoul02792South Korea
| | - Kyungjune Cho
- Department of Physics and Astronomy, and Institute of Applied PhysicsSeoul National UniversitySeoul08826South Korea
| | - Takhee Lee
- Department of Physics and Astronomy, and Institute of Applied PhysicsSeoul National UniversitySeoul08826South Korea
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Qiu S, Wu K, Gao B, Li L, Jin H, Li Q. Solution-Processing of High-Purity Semiconducting Single-Walled Carbon Nanotubes for Electronics Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800750. [PMID: 30062782 DOI: 10.1002/adma.201800750] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/14/2018] [Indexed: 06/08/2023]
Abstract
High-purity semiconducting single-walled carbon nanotubes (s-SWCNTs) are of paramount significance for the construction of next-generation electronics. Until now, a number of elaborate sorting and purification techniques for s-SWCNTs have been developed, among which solution-based sorting methods show unique merits in the scale production, high purity, and large-area film formation. Here, the recent progress in the solution processing of s-SWCNTs and their application in electronic devices is systematically reviewed. First, the solution-based sorting and purification of s-SWCNTs are described, and particular attention is paid to the recent advance in the conjugated polymer-based sorting strategy. Subsequently, the solution-based deposition and morphology control of a s-SWCNT thin film on a surface are introduced, which focus on the strategies for network formation and alignment of SWCNTs. Then, the recent advances in electronic devices based on s-SWCNTs are reviewed with emphasis on nanoscale s-SWCNTs' high-performance integrated circuits and s-SWCNT-based thin-film transistors (TFT) array and circuits. Lastly, the existing challenges and development trends for the s-SWCNTs and electronic devices are briefly discussed. The aim is to provide some useful information and inspiration for the sorting and purification of s-SWCNTs, as well as the construction of electronic devices with s-SWCNTs.
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Affiliation(s)
- Song Qiu
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou, 215123, P.R. China
| | - Kunjie Wu
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou, 215123, P.R. China
| | - Bing Gao
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China
| | - Liqiang Li
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou, 215123, P.R. China
| | - Hehua Jin
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou, 215123, P.R. China
| | - Qingwen Li
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou, 215123, P.R. China
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Bian R, Meng L, Zhang M, Chen L, Liu H. Aligning One-Dimensional Nanomaterials by Solution Processes. ACS OMEGA 2019; 4:1816-1823. [PMID: 31459436 PMCID: PMC6648870 DOI: 10.1021/acsomega.8b02700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/09/2019] [Indexed: 05/03/2023]
Abstract
One-dimensional nanomaterials, including both nanowires (NWs) and nanotubes (NTs), have been extensively investigated in the decades because of their unique physicochemical properties. Particularly, aligning NWs/NTs into a network or complex micropatterns has been a key issue for its unique integrated functionalities, which enjoy benefits in versatile applications. So far, solution processes remain the most effective strategy to align NWs/NTs, which also bear advantages of mild operation condition and large-scale production. In this perspective, particular attention is drawn to the currently widely used solution coating approaches for aligning NWs/NTs, including the Langmuir-Blodgett film technique, solution shearing approaches, and methods of tri-phase contact line manipulation. We also proposed several perspectives in this field.
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Chai Z, Seo J, Abbasi SA, Busnaina A. Assembly of Highly Aligned Carbon Nanotubes Using an Electro-Fluidic Assembly Process. ACS NANO 2018; 12:12315-12323. [PMID: 30511834 DOI: 10.1021/acsnano.8b06176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Carbon nanotubes (CNTs) are promising building blocks for emerging wearable electronics and sensors due to their outstanding electrical and mechanical properties. However, the practical applications of the CNTs face challenges of efficiently and precisely placing them at the desired location with controlled orientation and density. Here, we introduce an electro-fluidic assembly process to assemble highly aligned and densely packed CNTs selectively on a substrate with patterned wetted areas at a high rate. An electric field is applied during the electro-fluidic assembly process, which drives the CNTs close to the patterned regions and shortens the assembly time. Meanwhile, the electric field orientates the CNTs perpendicular to the substrate and anchors one end of the CNTs onto the substrate. When pulling the substrate out of the CNT suspension, the capillary force at the air-water-substrate interface stretches the free end of the CNTs and aligns the CNTs along the pulling direction. By adjusting two governing parameters, the direct current voltage and the pulling speed, we have demonstrated well aligned CNTs assembled in patterns with widths from 1 to 100 μm and lengths from 20 to 120 μm at a rate 20 times higher than a fluidic assembly process. The aligned CNTs show improved electrical conductivity compared with the random networks and prove possibility for strain detection. Precise and reproducible control of the orientation and the placement of the CNTs opens up their practical application in the next-generation electronics and sensors.
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Affiliation(s)
- Zhimin Chai
- NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing (CHN) , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Jungho Seo
- NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing (CHN) , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Salman A Abbasi
- NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing (CHN) , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Ahmed Busnaina
- NSF Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing (CHN) , Northeastern University , Boston , Massachusetts 02115 , United States
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Jo YJ, Kwon KY, Khan ZU, Crispin X, Kim TI. Gelatin Hydrogel-Based Organic Electrochemical Transistors and Their Integrated Logic Circuits. ACS APPLIED MATERIALS & INTERFACES 2018; 10:39083-39090. [PMID: 30360103 DOI: 10.1021/acsami.8b11362] [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
We suggest gelatin hydrogel as an electrolyte and demonstrate organic electrochemical transistors (OECTs) based on a sheet of gelatin. We also modulate electrical characteristics of the OECT with respect to pH condition of the gelatin hydrogel from acid to base and analyze its characteristics based on the electrochemical theory. Moreover, we extend the gelatin-based OECT to electrochemical logic circuits, for example, NOT, NOR, and NAND gates.
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Affiliation(s)
| | | | - Zia Ullah Khan
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , S-60174 Norrköping , Sweden
| | - Xavier Crispin
- Laboratory of Organic Electronics, Department of Science and Technology , Linköping University , S-60174 Norrköping , Sweden
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39
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Liu A, Meng Y, Zhu H, Noh YY, Liu G, Shan F. Electrospun p-Type Nickel Oxide Semiconducting Nanowires for Low-Voltage Field-Effect Transistors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25841-25849. [PMID: 28937205 DOI: 10.1021/acsami.7b08794] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
One-dimensional metal-oxide nanowires are regarded as important building blocks in nanoscale electronics, because of their unique mechanical and electrical properties. In this work, p-type nickel oxide nanowires (NiO NWs) were fabricated by combining sol-gel and electrospinning processes. The poly(vinylpyrrolidone) (PVP) with a molecular weight of 1 300 000 was used as the polymer matrix to increase the viscosity of a NiO precursor solution. The formation and properties of the as-spun NiO/PVP composite NWs before/after calcination treatment were investigated using various techniques. Because of the enhanced adhesion properties between ultraviolet (UV)-treated NiO NWs and the substrate, the field-effect transistors (FETs) based on NiO NWs were found to exhibit satisfying p-channel behaviors. For the fabrication of aligned NiO NW arrays, two parallel conducting Si strips were grounded as NW collector. The integrated FETs based on aligned NiO NWs were demonstrated to exhibit superior electrical performance, compared to the disordered counterparts with the comparable NW coverage. By employing high- k aluminum oxide (Al2O3) as a dielectric layer, instead of conventional SiO2, the devices with an aligned NiO NW array exhibit a high hole mobility of 2.8 cm2/(V s) with a low operating voltage of 5 V, fast switching speed, and successful modulation of light emission over external light-emitting diodes. To the best of our knowledge, this is the first work demonstrating the low-voltage transistors based on p-type oxide NWs, which represents a great step toward the development of sensors and CMOS logic circuits.
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Affiliation(s)
- Ao Liu
- College of Physics , Qingdao University , Qingdao 266071 , China
- College of Electronic & Information Engineering , Qingdao University , Qingdao 266071 , China
- Lab of New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - You Meng
- College of Physics , Qingdao University , Qingdao 266071 , China
- College of Electronic & Information Engineering , Qingdao University , Qingdao 266071 , China
- Lab of New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - Huihui Zhu
- College of Physics , Qingdao University , Qingdao 266071 , China
- College of Electronic & Information Engineering , Qingdao University , Qingdao 266071 , China
- Lab of New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - Yong-Young Noh
- Department of Energy and Materials Engineering , Dongguk University , 30 Pildong-ro, 1-gil , Jung-gu Seoul 04620 , Republic of Korea
| | - Guoxia Liu
- College of Physics , Qingdao University , Qingdao 266071 , China
- College of Electronic & Information Engineering , Qingdao University , Qingdao 266071 , China
- Lab of New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - Fukai Shan
- College of Physics , Qingdao University , Qingdao 266071 , China
- College of Electronic & Information Engineering , Qingdao University , Qingdao 266071 , China
- Lab of New Fiber Materials and Modern Textile, Growing Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
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Meng L, Bian R, Guo C, Xu B, Liu H, Jiang L. Aligning Ag Nanowires by a Facile Bioinspired Directional Liquid Transfer: Toward Anisotropic Flexible Conductive Electrodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706938. [PMID: 29707831 DOI: 10.1002/adma.201706938] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/22/2018] [Indexed: 05/15/2023]
Abstract
Recent years have witnessed the booming development of transparent flexible electrodes (TFEs) for their applications in electronics and optoelectronic devices. Various strategies have thus been developed for preparing TFEs with higher flexibility and conductivity. However, little work has focused on TFEs with anisotropic conductivity. Here, a facile strategy of directional liquid transfer is proposed, guided by a conical fibers array (CFA), based on which silver nanowires (AgNWs) are aligned on a soft poly(ethylene terephthalate) substrate in large scale. After further coating a second thin layer of the conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), a TFE with notable anisotropic conductivity and excellent optical transmittance of 95.2% is prepared. It is proposed that the CFA enables fine control over the receding of the three-phase contact line during the dewetting process, where AgNWs are guided and aligned by the as-generated directional stress. Moreover, anisotropic electrochemical deposition is enabled where the Cu nanoparticles deposit only on the oriented AgNWs, leading to a surface with anisotropic wetting behavior. Importantly, the approach enables alignment of AgNWs via multiple directions at one step. It is envisioned that the as-developed approach will provide an optional approach for simple and low-cost preparation of TFE with various functions.
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Affiliation(s)
- Lili Meng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, No. 37 Xueyuan Road, Haidian district, Beijing, 100191, P. R. China
| | - Ruixin Bian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, No. 37 Xueyuan Road, Haidian district, Beijing, 100191, P. R. China
| | - Cheng Guo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, No. 37 Xueyuan Road, Haidian district, Beijing, 100191, P. R. China
| | - Bojie Xu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, No. 37 Xueyuan Road, Haidian district, Beijing, 100191, P. R. China
| | - Huan Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, No. 37 Xueyuan Road, Haidian district, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, 100191, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, No. 37 Xueyuan Road, Haidian district, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering and International Research Institute for Multidisciplinary Science, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, 100191, P. R. China
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Zhu MG, Si J, Zhang Z, Peng LM. Aligning Solution-Derived Carbon Nanotube Film with Full Surface Coverage for High-Performance Electronics Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707068. [PMID: 29696705 DOI: 10.1002/adma.201707068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 02/17/2018] [Indexed: 06/08/2023]
Abstract
The main challenge for application of solution-derived carbon nanotubes (CNTs) in high performance field-effect transistor (FET) is how to align CNTs into an array with high density and full surface coverage. A directional shrinking transfer method is developed to realize high density aligned array based on randomly orientated CNT network film. Through transferring a solution-derived CNT network film onto a stretched retractable film followed by a shrinking process, alignment degree and density of CNT film increase with the shrinking multiple. The quadruply shrunk CNT films present well alignment, which is identified by the polarized Raman spectroscopy and electrical transport measurements. Based on the high quality and high density aligned CNT array, the fabricated FETs with channel length of 300 nm present ultrahigh performance including on-state current Ion of 290 µA µm-1 (Vds = -1.5 V and Vgs = -2 V) and peak transconductance gm of 150 µS µm-1 , which are, respectively, among the highest corresponding values in the reported CNT array FETs. High quality and high semiconducting purity CNT arrays with high density and full coverage obtained through this method promote the development of high performance CNT-based electronics.
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Affiliation(s)
- Ma-Guang Zhu
- Key Laboratory for the Physics and Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing, 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Jia Si
- Key Laboratory for the Physics and Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing, 100871, China
| | - Zhiyong Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing, 100871, China
| | - Lian-Mao Peng
- Key Laboratory for the Physics and Chemistry of Nanodevices, and Department of Electronics, Peking University, Beijing, 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
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43
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Zhang S, Pelligra CI, Feng X, Osuji CO. Directed Assembly of Hybrid Nanomaterials and Nanocomposites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705794. [PMID: 29520839 DOI: 10.1002/adma.201705794] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/22/2017] [Indexed: 05/19/2023]
Abstract
Hybrid nanomaterials are molecular or colloidal-level combinations of organic and inorganic materials, or otherwise strongly dissimilar materials. They are often, though not exclusively, anisotropic in shape. A canonical example is an inorganic nanorod or nanosheet sheathed in, or decorated by, a polymeric or other organic material, where both the inorganic and organic components are important for the properties of the system. Hybrid nanomaterials and nanocomposites have generated strong interest for a broad range of applications due to their functional properties. Generating macroscopic assemblies of hybrid nanomaterials and nanomaterials in nanocomposites with controlled orientation and placement by directed assembly is important for realizing such applications. Here, a survey of critical issues and themes in directed assembly of hybrid nanomaterials and nanocomposites is provided, highlighting recent efforts in this field with particular emphasis on scalable methods.
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Affiliation(s)
- Shanju Zhang
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Candice I Pelligra
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
| | - Xunda Feng
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
| | - Chinedum O Osuji
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
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Passi V, Gahoi A, Senkovskiy BV, Haberer D, Fischer FR, Grüneis A, Lemme MC. Field-Effect Transistors Based on Networks of Highly Aligned, Chemically Synthesized N = 7 Armchair Graphene Nanoribbons. ACS APPLIED MATERIALS & INTERFACES 2018; 10:9900-9903. [PMID: 29516716 PMCID: PMC5880510 DOI: 10.1021/acsami.8b01116] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
We report on the experimental demonstration and electrical characterization of N = 7 armchair graphene nanoribbon (7-AGNR) field effect transistors. The back-gated transistors are fabricated from atomically precise and highly aligned 7-AGNRs, synthesized with a bottom-up approach. The large area transfer process holds the promise of scalable device fabrication with atomically precise nanoribbons. The channels of the FETs are approximately 30 times longer than the average nanoribbon length of 30 nm to 40 nm. The density of the GNRs is high, so that transport can be assumed well-above the percolation threshold. The long channel transistors exhibit a maximum ION/ IOFF current ratio of 87.5.
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Affiliation(s)
- Vikram Passi
- AMO GmbH, Advanced
Microelectronic Center Aachen, Otto-Blumenthal-Strasse 25, Aachen, Germany
| | - Amit Gahoi
- Chair of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Strasse 2, Aachen, Germany
| | - Boris V. Senkovskiy
- II. Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, Köln, Germany
| | - Danny Haberer
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Felix R. Fischer
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Alexander Grüneis
- II. Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, Köln, Germany
| | - Max C. Lemme
- AMO GmbH, Advanced
Microelectronic Center Aachen, Otto-Blumenthal-Strasse 25, Aachen, Germany
- Chair of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Strasse 2, Aachen, Germany
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Ghorbanpour A, Huelsenbeck LD, Smilgies DM, Giri G. Oriented UiO-66 thin films through solution shearing. CrystEngComm 2018. [DOI: 10.1039/c7ce01801k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we discuss the fabrication of oriented films of UiO-66 crystals via the solution shearing based deposition of the crystal suspension over functionalized silicon substrates.
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Affiliation(s)
- Arian Ghorbanpour
- Department of Chemical Engineering
- University of Virginia
- Charlottesville
- USA
| | | | | | - Gaurav Giri
- Department of Chemical Engineering
- University of Virginia
- Charlottesville
- USA
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46
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Jinkins KR, Chan J, Brady GJ, Gronski KK, Gopalan P, Evensen HT, Berson A, Arnold MS. Nanotube Alignment Mechanism in Floating Evaporative Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13407-13414. [PMID: 29058446 DOI: 10.1021/acs.langmuir.7b02827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The challenge of assembling semiconducting single-wall carbon nanotubes (s-SWCNTs) into densely packed, aligned arrays has limited the scalability and practicality of high-performance nanotube-based electronics technologies. The aligned deposition of s-SWCNTs via floating evaporative self-assembly (FESA) has promise for overcoming this challenge; however, the mechanisms behind FESA need to be elucidated before the technique can be improved and scaled. Here, we gain a deeper understanding of the FESA process by studying a stationary analogue of FESA and optically tracking the dynamics of the organic ink/water/substrate and ink/air/substrate interfaces during the typical FESA process. We observe that the ink/water interface serves to collect and confine the s-SWCNTs before alignment and that the deposition of aligned bands of s-SWCNTs occurs at the ink/water/substrate contact line during the depinning of both the ink/air/substrate and ink/water/substrate contact lines. We also demonstrate improved control over the interband spacing, bandwidth, and packing density of FESA-aligned s-SWCNT arrays. The substrate lift rate (5-15 mm min-1) is used to tailor the interband spacing from 90 to 280 μm while maintaining a constant aligned s-SWCNT bandwidth of 50 μm. Varying the s-SWCNT ink concentration (0.75-10 μg mL-1) allows the control of the bandwidth from 2.5 to 45 μm. A steep increase in packing density is observed from 11 s-SWCNTs μm-1 at 0.75 μg mL-1 to 20 s-SWCNTs μm-1 at 2 μg mL-1, with a saturated packing density of ∼24 s-SWCNTs μm-1. We also demonstrate the scaling of FESA to align s-SWCNTs on a 2.5 × 2.5 cm2 scale while preserving high-quality alignment on the nanometer scale. These findings help realize the scalable fabrication of well-aligned s-SWCNT arrays to serve as large-area platforms for next-generation semiconductor electronics.
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Affiliation(s)
- Katherine R Jinkins
- Department of Materials Science & Engineering, University of Wisconsin-Madison , 1509 University Avenue, Madison, Wisconsin 53706, United States
| | - Jason Chan
- Department of Mechanical Engineering, University of Wisconsin-Madison , 1513 University Avenue, Madison, Wisconsin 53706, United States
| | - Gerald J Brady
- Department of Materials Science & Engineering, University of Wisconsin-Madison , 1509 University Avenue, Madison, Wisconsin 53706, United States
| | | | - Padma Gopalan
- Department of Materials Science & Engineering, University of Wisconsin-Madison , 1509 University Avenue, Madison, Wisconsin 53706, United States
- Department of Chemistry, University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
| | | | - Arganthaël Berson
- Department of Mechanical Engineering, University of Wisconsin-Madison , 1513 University Avenue, Madison, Wisconsin 53706, United States
| | - Michael S Arnold
- Department of Materials Science & Engineering, University of Wisconsin-Madison , 1509 University Avenue, Madison, Wisconsin 53706, United States
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Raja MAZ, Ahmed T, Shah SM. Intelligent computing strategy to analyze the dynamics of convective heat transfer in MHD slip flow over stretching surface involving carbon nanotubes. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.08.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Evans GP, Buckley DJ, Skipper NT, Parkin IP. Switchable changes in the conductance of single-walled carbon nanotube networks on exposure to water vapour. NANOSCALE 2017; 9:11279-11287. [PMID: 28758671 DOI: 10.1039/c7nr02141k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We have discovered that wrapping single-walled carbon nanotubes (SWCNTs) with ionic surfactants induces a switch in the conductance-humidity behaviour of SWCNT networks. Residual cationic vs. anionic surfactant induces a respective increase or decrease in the measured conductance across the SWCNT networks when exposed to water vapour. The magnitude of this effect was found to be dependent on the thickness of the deposited SWCNT films. Previously, chemical sensors, field effect transistors (FETs) and transparent conductive films (TCFs) have been fabricated from aqueous dispersions of surfactant functionalised SWCNTs. The results reported here confirm that the electrical properties of such components, based on randomly orientated SWCNT networks, can be significantly altered by the presence of surfactant in the SWCNT layer. A mechanism for the observed behaviour is proposed based on electrical measurements, Raman and UV-Vis-NIR spectroscopy. Additionally, the potential for manipulating the sensitivity of the surfactant functionalised SWCNTs to water vapour for atmospheric humidity sensing was evaluated. The study also presents a simple method to establish the effectiveness of surfactant removal techniques, and highlights the importance of characterising the electrical properties of SWCNT-based devices in both dry and humid operating environments for practical applications.
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Affiliation(s)
- Gwyn P Evans
- Department of Security and Crime Science, University College London, 35 Tavistock Sq., London, WC1H 9EZ, UK and Department of Chemistry, University College London, 20 Gordon St., London, WC1H 0AJ, UK.
| | - David J Buckley
- Department of Chemistry, University College London, 20 Gordon St., London, WC1H 0AJ, UK.
| | - Neal T Skipper
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK and London Centre for Nanotechnology, 17-19 Gordon Street, London WC1H 0AH, UK
| | - Ivan P Parkin
- Department of Chemistry, University College London, 20 Gordon St., London, WC1H 0AJ, UK.
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49
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Matsuzawa Y, Negoro C, Jintoku H, Kihara H, Yoshida M. Formation of a Lyotropic Liquid Crystal Phase in a Single Walled Carbon Nanotube Aqueous Ink with Low-molecular-weight Electrolyte. CHEM LETT 2017. [DOI: 10.1246/cl.170370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yoko Matsuzawa
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565
| | - Chie Negoro
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565
| | - Hirokuni Jintoku
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565
| | - Hideyuki Kihara
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565
| | - Masaru Yoshida
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565
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50
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Li X, Wolanin PJ, MacFarlane LR, Harniman RL, Qian J, Gould OEC, Dane TG, Rudin J, Cryan MJ, Schmaltz T, Frauenrath H, Winnik MA, Faul CFJ, Manners I. Uniform electroactive fibre-like micelle nanowires for organic electronics. Nat Commun 2017; 8:15909. [PMID: 28649998 PMCID: PMC5490183 DOI: 10.1038/ncomms15909] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 05/12/2017] [Indexed: 01/08/2023] Open
Abstract
Micelles formed by the self-assembly of block copolymers in selective solvents have attracted widespread attention and have uses in a wide variety of fields, whereas applications based on their electronic properties are virtually unexplored. Herein we describe studies of solution-processable, low-dispersity, electroactive fibre-like micelles of controlled length from π-conjugated diblock copolymers containing a crystalline regioregular poly(3-hexylthiophene) core and a solubilizing, amorphous regiosymmetric poly(3-hexylthiophene) or polystyrene corona. Tunnelling atomic force microscopy measurements demonstrate that the individual fibres exhibit appreciable conductivity. The fibres were subsequently incorporated as the active layer in field-effect transistors. The resulting charge carrier mobility strongly depends on both the degree of polymerization of the core-forming block and the fibre length, and is independent of corona composition. The use of uniform, colloidally stable electroactive fibre-like micelles based on common π-conjugated block copolymers highlights their significant potential to provide fundamental insight into charge carrier processes in devices, and to enable future electronic applications.
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Affiliation(s)
- Xiaoyu Li
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Piotr J. Wolanin
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
- Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - Liam R. MacFarlane
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Robert L. Harniman
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Jieshu Qian
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Oliver E. C. Gould
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
- Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - Thomas G. Dane
- European Synchrotron Radiation Facility, BP 220, Grenoble F-38043, France
| | - John Rudin
- Folium Optics Ltd, Unit 28, Cooper Road, Thornbury, Bristol BS35 3UP, UK
| | - Martin J. Cryan
- Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UK
| | - Thomas Schmaltz
- Laboratory of Macromolecular and Organic Materials, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL–STI–IMX–LMOM, Station 12, 1015 Lausanne, Switzerland
| | - Holger Frauenrath
- Laboratory of Macromolecular and Organic Materials, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), EPFL–STI–IMX–LMOM, Station 12, 1015 Lausanne, Switzerland
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - Charl F. J. Faul
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
| | - Ian Manners
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, UK
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