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Singh AK, Thakurta B, Giri A, Pal M. Wafer-scale synthesis of two-dimensional ultrathin films. Chem Commun (Camb) 2024; 60:265-279. [PMID: 38087984 DOI: 10.1039/d3cc04610a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Two-dimensional (2D) materials, consisting of atomically thin layered crystals, have attracted tremendous interest due to their outstanding intrinsic properties and diverse applications in electronics, optoelectronics, and catalysis. The large-scale growth of high-quality ultrathin 2D films and their utilization in the facile fabrication of devices, easily adoptable in industrial applications, have been extensively sought after during the last decade; however, it remains a challenge to achieve these goals. Herein, we introduce three key concepts: (i) the microwave assisted quick (∼1 min) synthesis of wafer-scale (6-inch) anisotropic conducting ultrathin (∼1 nm) amorphous carbon and 2D semiconducting metal chalcogenide atomically thin films, (ii) a polymer-assisted deposition process for the synthesis of wafer-scale (6-inch) 2D metal chalcogenide and pyrolyzed carbon thin films, and (iii) the surface diffusion and epitaxial self-planarization induced synthesis of wafer-scale (2-inch) single crystal 2D binary and large-grain 2D ferromagnetic ternary metal chalcogenide thin films. The proposed synthesis concepts can pave a new way for the manufacture of wafer-scale high quality 2D ultrathin films and their utilization in the facile fabrication of devices.
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Affiliation(s)
- Amresh Kumar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, UP 221005, India.
| | - Baishali Thakurta
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, UP 221005, India.
| | - Anupam Giri
- Department of Chemistry, Faculty of Science, University of Allahabad, Prayagraj, UP 211002, India.
| | - Monalisa Pal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, UP 221005, India.
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Guo Y, Zhang L, Wang Y, Liang J, Liu X, Jiang Y, Jiang L, Chen H. Nanofiber embedded bioinspired strong wet friction surface. SCIENCE ADVANCES 2023; 9:eadi4843. [PMID: 37824620 PMCID: PMC10569708 DOI: 10.1126/sciadv.adi4843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/07/2023] [Indexed: 10/14/2023]
Abstract
Robust and reversible wet attachments are important for medical engineering and wearable electronics. Although ultrastrong capillarity from interfacial nano-thick liquid bridges creates tree frog's strong wet friction, its unstable nano-liquid characteristic challenges further wet friction enhancement. Here, unique hierarchical micro-nano fibrous pillars have been discovered on Chinese bush crickets exhibiting a robust wet friction ~3.8 times higher than tree frog's bulk pillar. By introducing a nano-fibrous pillar array covered with thin films (NFPF), the pillar's separation position switches from the rear to front side compared with bulk pillars, indicating the interfacial contact stress shifting from compressing to stretching. This largely decreases the interfacial separation stress to form more stable and larger nano-liquid bridges. The NFPF array with self-splitting of interfacial liquid and contact stress further guards such interfacial stress shifting to ensure a ~1.9 times friction enhancement. Last, the theories are established, and the applications on wearable electronics are validated.
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Affiliation(s)
- Yurun Guo
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Liwen Zhang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Yan Wang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Jing Liang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Xiaolin Liu
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Yonggang Jiang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Lei Jiang
- Laboratory of Bioinspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Huawei Chen
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
- Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China
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3
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Kim IS, Shim CE, Kim SW, Lee CS, Kwon J, Byun KE, Jeong U. Amorphous Carbon Films for Electronic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2204912. [PMID: 36408886 DOI: 10.1002/adma.202204912] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/08/2022] [Indexed: 06/16/2023]
Abstract
While various crystalline carbon allotropes, including graphene, have been actively investigated, amorphous carbon (a-C) thin films have received relatively little attention. The a-C is a disordered form of carbon bonding with a broad range of the CC bond length and bond angle. Although accurate structural analysis and theoretical approaches are still insufficient, reproducible structure-property relationships have been accumulated. As the a-C thin film is now adapted as a hardmask in the semiconductor industry and new properties are reported continuously, expectations are growing that it can be practically used as active materials beyond as a simple sacrificial layer. In this perspective review article, after a brief introduction to the synthesis and properties of the a-C thin films, their potential practical applications are proposed, including hardmasks, extreme ultraviolet (EUV) pellicles, diffusion barriers, deformable electrodes and interconnects, sensors, active layers, electrodes for energy, micro-supercapacitors, batteries, nanogenerators, electromagnetic interference (EMI) shielding, and nanomembranes. The article ends with a discussion on the technological challenges in a-C thin films.
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Affiliation(s)
- Ik-Soo Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Chengam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Chae-Eun Shim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Chengam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Sang Won Kim
- New Material Laboratory, Samsung Advanced Institute of Technology, Suwon-si, Gyeonggido, 16678, Republic of Korea
| | - Chang-Seok Lee
- New Material Laboratory, Samsung Advanced Institute of Technology, Suwon-si, Gyeonggido, 16678, Republic of Korea
| | - Junyoung Kwon
- New Material Laboratory, Samsung Advanced Institute of Technology, Suwon-si, Gyeonggido, 16678, Republic of Korea
| | - Kyung-Eun Byun
- New Material Laboratory, Samsung Advanced Institute of Technology, Suwon-si, Gyeonggido, 16678, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Chengam-ro, Nam-gu, Pohang, 37673, Republic of Korea
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Kim DW, Kim SW, Lee G, Yoon J, Kim S, Hong JH, Jo SC, Jeong U. Fabrication of practical deformable displays: advances and challenges. LIGHT, SCIENCE & APPLICATIONS 2023; 12:61. [PMID: 36869021 PMCID: PMC9984414 DOI: 10.1038/s41377-023-01089-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/16/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Display form factors such as size and shape have been conventionally determined in consideration of usability and portability. The recent trends requiring wearability and convergence of various smart devices demand innovations in display form factors to realize deformability and large screens. Expandable displays that are foldable, multi-foldable, slidable, or rollable have been commercialized or on the edge of product launches. Beyond such two-dimensional (2D) expansion of displays, efforts have been made to develop three dimensional (3D) free-form displays that can be stretched and crumpled for use in realistic tactile sensation, artificial skin for robots, and on-skin or implantable displays. This review article analyzes the current state of the 2D and 3D deformable displays and discusses the technological challenges to be achieved for industrial commercialization.
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Affiliation(s)
- Dong Wook Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, 37673, Pohang, Gyeongbuk, Republic of Korea
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Hisenbergstr. 3, 70569, Stuttgart, Germany
| | - Seong Won Kim
- Advanced Research Team, Samsung Display Corporation, 1 Samsung-ro, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Gyujeong Lee
- Advanced Research Team, Samsung Display Corporation, 1 Samsung-ro, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Jangyeol Yoon
- Advanced Research Team, Samsung Display Corporation, 1 Samsung-ro, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Sangwoo Kim
- Advanced Research Team, Samsung Display Corporation, 1 Samsung-ro, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Jong-Ho Hong
- Advanced Research Team, Samsung Display Corporation, 1 Samsung-ro, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Sung-Chan Jo
- Advanced Research Team, Samsung Display Corporation, 1 Samsung-ro, Yongin-si, Gyeonggi-do, Republic of Korea.
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, 37673, Pohang, Gyeongbuk, Republic of Korea.
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Sang M, Kim K, Shin J, Yu KJ. Ultra-Thin Flexible Encapsulating Materials for Soft Bio-Integrated Electronics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202980. [PMID: 36031395 PMCID: PMC9596833 DOI: 10.1002/advs.202202980] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/22/2022] [Indexed: 05/11/2023]
Abstract
Recently, bioelectronic devices extensively researched and developed through the convergence of flexible biocompatible materials and electronics design that enables more precise diagnostics and therapeutics in human health care and opens up the potential to expand into various fields, such as clinical medicine and biomedical research. To establish an accurate and stable bidirectional bio-interface, protection against the external environment and high mechanical deformation is essential for wearable bioelectronic devices. In the case of implantable bioelectronics, special encapsulation materials and optimized mechanical designs and configurations that provide electronic stability and functionality are required for accommodating various organ properties, lifespans, and functions in the biofluid environment. Here, this study introduces recent developments of ultra-thin encapsulations with novel materials that can preserve or even improve the electrical performance of wearable and implantable bio-integrated electronics by supporting safety and stability for protection from destruction and contamination as well as optimizing the use of bioelectronic systems in physiological environments. In addition, a summary of the materials, methods, and characteristics of the most widely used encapsulation technologies is introduced, thereby providing a strategic selection of appropriate choices of recently developed flexible bioelectronics.
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Affiliation(s)
- Mingyu Sang
- School of Electrical and Electronic EngineeringYonsei University50 Yonsei‐ro, SeodaemunguSeoul03722Republic of Korea
| | - Kyubeen Kim
- School of Electrical and Electronic EngineeringYonsei University50 Yonsei‐ro, SeodaemunguSeoul03722Republic of Korea
| | - Jongwoon Shin
- School of Electrical and Electronic EngineeringYonsei University50 Yonsei‐ro, SeodaemunguSeoul03722Republic of Korea
| | - Ki Jun Yu
- School of Electrical and Electronic EngineeringYonsei University50 Yonsei‐ro, SeodaemunguSeoul03722Republic of Korea
- YU‐KIST InstituteYonsei University50 Yonsei‐ro, SeodaemunguSeoul03722Republic of Korea
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6
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Park G, Kim D, Kim G, Jeong U. High-Performance Indium–Tin Oxide (ITO) Electrode Enabled by a Counteranion-Free Metal–Polymer Complex. ACS NANOSCIENCE AU 2022; 2:527-538. [PMID: 37101853 PMCID: PMC10125366 DOI: 10.1021/acsnanoscienceau.2c00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/18/2022] [Accepted: 08/18/2022] [Indexed: 11/30/2022]
Abstract
Although multicomponent inorganic thin films (metal-oxides, -carbides, -nitrides, and -chalcogenides) have been synthesized by polymer-assisted deposition (PAD), synthesis of high-performance transparent conducting oxides (TCOs) has been rarely reported. TCO requires (i) removal of impurities, (ii) high-density oxide film, (iii) homogeneity in crystal structures and film morphology, and (iv) controllable elemental doping. This study performs a systematic investigation on preparation of stable multicomponent metal-polymer complex solutions by removing the counteranions in the solution. This study also proposes accurate acid-base titration for each metal species in order to minimize the amount of PEI, thus maximizing the density of the film. As a representative TCO, Sn-doped In2O3 (ITO) films have been achieved. The ITO film has an excellent sheet resistance (24.5 Ω/sq) at 93% optical transparency, with a figure of merit of 2.1 × 10-2 Ω-1, which is comparable to the best.
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Affiliation(s)
- Gyeongbae Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77, Choengam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673, Republic of Korea
| | - Dongbeom Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77, Choengam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673, Republic of Korea
| | - Geonwoo Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77, Choengam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, 77, Choengam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673, Republic of Korea
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7
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Gong Z, Wang H, Vayenas DV, Yan Q. Enhanced electrochemical removal of sulfadiazine using stainless steel electrode coated with activated algal biochar. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 306:114535. [PMID: 35051817 DOI: 10.1016/j.jenvman.2022.114535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/06/2022] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
With the increasingly discharging and inappropriately disposing of antibiotics from human disease treatment and breeding industry, extensive development of antibiotic resistance in bacteria raised serious public health concern. In this work, algal biochar was coated onto the stainless steel mesh, and was employed as cathodic electrode for the degradation of sulfadiazine (SDZ) in an electro-Fenton (EF) system. It was found that algal biochar pyrolyzed at 600 °C with 1:1 KOH achieved best catalytic performance to generate H2O2 via oxygen reduction. Moreover, removal efficiency of SDZ reached 96.11% in 4 h with an initial concentration of 25 μg/mL, under the optimized condition as: initial pH at 3, 50 mM of Na2SO4 as electrolyte and an applied current of 20 mA/cm2. In addition, it was found that the SDZ removal kept at about 96.99% even after four repeated degradation process. Moreover, four possible SDZ degradative pathways during the EF process were proposed according to determined intermediates, model optimization and density functional theory calculation. Finally, acute and chronic biotoxicity of the degradative products against fish and green algae was evaluated, to further elaborate the environmental impact of SDZ after electrochemical degradation.
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Affiliation(s)
- Zhihao Gong
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, PR China
| | - Han Wang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, PR China
| | - Dimitris V Vayenas
- Department of Chemical Engineering, University of Patras, Caratheodory 1, University Campus, GR, 26504, Patras, Greece; Institute of Chemical Engineering and High Temperature Chemical Processes (FORTH/ICE-HT), Stadiou Str., Platani, GR, 26504, Patras, Greece
| | - Qun Yan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou, 215011, PR China.
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8
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Kim DW, Hyun C, Shin TJ, Jeong U. Precise Tuning of Multiple Perovskite Photoluminescence by Volume-Controlled Printing of Perovskite Precursor Solution on Cellulose Paper. ACS NANO 2022; 16:2521-2534. [PMID: 35044152 DOI: 10.1021/acsnano.1c09140] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Metal halide perovskite nanocrystals (PeNCs) with a controlled quantum size effect have received intense interest for potential applications in optoelectronics and photonics. Here, we present a simple and innovative strategy to precisely tune the photoluminescence color of PeNCs by simply printing perovskite precursor solutions on cellulose papers. Depending on the volume of the printed precursor solutions, the PeNCs are autonomously grown into three discrete sizes, and their relative size population is controlled; accordingly, not only the number of multiple PL peaks but also their relative intensities can be precisely tuned. This autonomous size control is obtained through the efflorescence, which is advection of salt ions toward the surface of a porous medium during solvent evaporation and also through the confined crystal growth in the hierarchical structure of cellulose fibers. The infiltrated PeNCs are environmentally stable against moisture (for 3 months in air at 70% relative humidity) and strong light exposure by hydrophobic surface treatment. This study also demonstrates invisible encryption and highly secured unclonable anticounterfeiting patterns on deformable cellulose substrates and banknotes.
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Affiliation(s)
- Dong Wook Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, 37673 Pohang, Gyeongbuk, Republic of Korea
| | - Chohee Hyun
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, 44919 Ulsan, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, 44919 Ulsan, Republic of Korea
- Gradute School of Semiconductor Material and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, 44919 Ulsan, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, 37673 Pohang, Gyeongbuk, Republic of Korea
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Kim DW, Kwon J, Kim HS, Jeong U. Printed Stretchable Single-Nanofiber Interconnections for Individually-Addressable Highly-Integrated Transparent Stretchable Field Effect Transistor Array. NANO LETTERS 2021; 21:5819-5827. [PMID: 34189918 DOI: 10.1021/acs.nanolett.1c01744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Stretchable electronics have been spotlighted as promising next-generation electronics. In order to drive a specific unit device in an integrated stretchable device, the interconnection of the device should be placed in a desired position and addressed individually. In addition, practical stretchable interconnection requires reliable stretchability, high conductivity, optical transparency, high resolution, and fast and large-scale production. This study proposes an approach to meet these requirements. We print the single wavy polymer nanofibers (NFs) in a desired position and convert them into metal NF interconnections. The nanoscale diameter and the wavy cylindrical shape of the metal NFs are the main reasons for the reliable stretchability and the excellent transparency. Using the stretchable metal NFs and the stretchable organic semiconductor NFs, an array of all-stretchable transparent NF-field effect transistors (NF-FETs) is demonstrated. The highly integrated NF-FET array (10 FETs/mm2) shows uniform performance and good stability under repeated severe mechanical deformations.
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Affiliation(s)
- Dong Wook Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jihye Kwon
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Hyoung Seop Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
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10
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Tang X, Qi H, Yang L, Xie Y, Ma Q, Yu W, Dong X, Li D, Liu G, Wang J. Novel photosensitive dual-anisotropic conductive Janus film endued with magnetic-luminescent properties and derivative 3D structures. J Colloid Interface Sci 2021; 601:899-914. [PMID: 34118776 DOI: 10.1016/j.jcis.2021.05.141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/20/2021] [Accepted: 05/23/2021] [Indexed: 10/21/2022]
Abstract
A new photosensitive dual-anisotropic conductive Janus film (PDCJF) is proposed for the first time. It is rationally designed and manufactured by facile electrospinning. PDCJF is firstly constructed using 2,7-dibromo-9-fluorenone (DBF) with photoconductive and luminescent properties. Janus nanofibers are respectively used as the building units to construct the top layer (T-PDCJF) and the bottom layer (B-PDCJF) of PDCJF. The two layers are tightly bonded to form PDCJF. Under light irradiation, there is photosensitive dual-anisotropic conduction in PDCJF, but there is no anisotropic conduction without light. Thus, the transition of PDCJF from mono-functional magnetism to tri-functionalities is realized under light and without light. The luminescence color of PDCJF is tunable and it emits white-light. This is made possible by modulating the amounts of luminescent substances and excitation wavelength. The microscopic Janus nanofibers used as building units and macroscopic Janus film structure ensure high photosensitive dual-anisotropic conduction and excellent fluorescence in PDCJF. The two-dimensional (2D) PDCJF is rolled to obtain three-dimensional (3D) Janus-type tubes and 2D plus 3D complete flag-like structures with exceptional multi-functionalities. The new findings can strongly guide in developing advanced multi-functional nanostructures.
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Affiliation(s)
- Xuehua Tang
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Haina Qi
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Liu Yang
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Yunrui Xie
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Qianli Ma
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Wensheng Yu
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Xiangting Dong
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China.
| | - Dan Li
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Guixia Liu
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Jinxian Wang
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
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11
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Wang H, Wang H, Liu G, Yan Q. In-situ pyrolysis of Taihu blue algae biomass as appealing porous carbon adsorbent for CO 2 capture: Role of the intrinsic N. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:145424. [PMID: 33548725 DOI: 10.1016/j.scitotenv.2021.145424] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/21/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
An environment-friendly, cost-effective, and facile N self-doping porous carbon (NC) were prepared through in-situ pyrolysis of nitrogen abundant Taihu blue algae biomass for CO2 uptake. It was found that the CO2 sorption capacity of porous carbon prepared through carbonization at 800 °C with KOH activation (N-C-800) exhibit higher CO2 uptake capacity of 4.88 (1 bar and 0 °C) and 2.76 mmol/g (1 bar and 25 °C) respectively, with the CO2/N2 selectivity of N-C-800 attaining 39.3. Besides, the adsorption capacity of N-C-800 remained stable even after 7 repeated cycles, with a slight loss of nearly 6%. Moreover, total graphitic N (Ntg) sources from the intrinsic N in N-C-800 is not only higher than other agro-sourced porous carbon materials, but the graphitic N performed a sound correlation with the CO2 uptake capacity. Combining experiments with Density Functional Theory (DFT) calculations, higher adsorption energy of N-C-800 (-13.6 kJ/mol, comparing with -6.9 kJ/mol of N-free carbon framework) would render the efficient adsorption of CO2 molecular onto the graphitic N site. The current study not only provides a new option for the reclamation of Taihu blue algae biomass as N self-doping material, but a proof-of-concept investigation employing NC materials as an appealing candidate for CO2 capture.
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Affiliation(s)
- He Wang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Han Wang
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Guoshuai Liu
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Qun Yan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi 214122, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215011, PR China.
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12
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Kim DW, Kong M, Jeong U. Interface Design for Stretchable Electronic Devices. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004170. [PMID: 33898192 PMCID: PMC8061377 DOI: 10.1002/advs.202004170] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/28/2020] [Indexed: 05/25/2023]
Abstract
Stretchable electronics has emerged over the past decade and is now expected to bring form factor-free innovation in the next-generation electronic devices. Stretchable devices have evolved with the synthesis of new soft materials and new device architectures that require significant deformability while maintaining the high device performance of the conventional rigid devices. As the mismatch in the mechanical stiffness between materials, layers, and device units is the major challenge for stretchable electronics, interface control in varying scales determines the device characteristics and the level of stretchability. This article reviews the recent advances in interface control for stretchable electronic devices. It summarizes the design principles and covers the representative approaches for solving the technological issues related to interfaces at different scales: i) nano- and microscale interfaces between materials, ii) mesoscale interfaces between layers or microstructures, and iii) macroscale interfaces between unit devices, substrates, or electrical connections. The last section discusses the current issues and future challenges of the interfaces for stretchable devices.
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Affiliation(s)
- Dong Wook Kim
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)77 Cheongam‐Ro, Nam‐GuPohangGyeongbuk37673Republic of Korea
| | - Minsik Kong
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)77 Cheongam‐Ro, Nam‐GuPohangGyeongbuk37673Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)77 Cheongam‐Ro, Nam‐GuPohangGyeongbuk37673Republic of Korea
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Kim DW, Lee G, Pal M, Jeong U. Highly Deformable Transparent Au Film Electrodes and Their Uses in Deformable Displays. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41969-41980. [PMID: 32806891 DOI: 10.1021/acsami.0c11630] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With emerging interest in foldable and stretchable displays, the need to develop transparent deformable electrode and interconnection is increasing. Even though metal films have been standard electrodes in conventional electronic devices due to their high conductivity and well-established process, they have never been used for transparent deformable electrodes. We present highly conductive transparent deformable Au film electrodes and use them to fabricate a foldable perovskite light-emitting diode (PeLED) and a biaxially stretchable alternating current electroluminescence (ACEL) display. We exhibit the formation of an ultrathin (6 nm) continuous Au film on an anisotropic conductive ultrathin film (ACUF) of amorphous carbon. The ultrathin Au film was first formed on an ACUF-coated Si wafer (4 in. scale) through metal evaporation and transferred to the polymer substrates by a simple and effective water-assisted delamination process. Then, a hybrid electrode (ACUF/ACUF/Au) was produced as the transparent deformable electrode. Complicated interconnections could be created by metal deposition through a mask. The electrical conductance of the hybrid electrode was not affected by the crack formation in the Au film during electrode folding, crumpling, and stretching. We reveal the reason why the hybrid electrode can maintain such excellent electrical stability under deformation.
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Affiliation(s)
- Dong Wook Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Gilwoon Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Monalisa Pal
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea
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