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Yang Y, Liang B, Kreie J, Hambsch M, Liang Z, Wang C, Huang S, Dong X, Gong L, Liang C, Lou D, Zhou Z, Lu J, Yang Y, Zhuang X, Qi H, Kaiser U, Mannsfeld SCB, Liu W, Gölzhäuser A, Zheng Z. Elastic films of single-crystal two-dimensional covalent organic frameworks. Nature 2024; 630:878-883. [PMID: 38718837 DOI: 10.1038/s41586-024-07505-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 05/01/2024] [Indexed: 06/21/2024]
Abstract
The properties of polycrystalline materials are often dominated by defects; two-dimensional (2D) crystals can even be divided and disrupted by a line defect1-3. However, 2D crystals are often required to be processed into films, which are inevitably polycrystalline and contain numerous grain boundaries, and therefore are brittle and fragile, hindering application in flexible electronics, optoelectronics and separation1-4. Moreover, similar to glass, wood and plastics, they suffer from trade-off effects between mechanical strength and toughness5,6. Here we report a method to produce highly strong, tough and elastic films of an emerging class of 2D crystals: 2D covalent organic frameworks (COFs) composed of single-crystal domains connected by an interwoven grain boundary on water surface using an aliphatic bi-amine as a sacrificial go-between. Films of two 2D COFs have been demonstrated, which show Young's moduli and breaking strengths of 56.7 ± 7.4 GPa and 73.4 ± 11.6 GPa, and 82.2 ± 9.1 N m-1 and 29.5 ± 7.2 N m-1, respectively. We predict that the sacrificial go-between guided synthesis method and the interwoven grain boundary will inspire grain boundary engineering of various polycrystalline materials, endowing them with new properties, enhancing their current applications and paving the way for new applications.
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Affiliation(s)
- Yonghang Yang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GBRCE for Functional Molecular Engineering, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, IGCME and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, China
| | - Baokun Liang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Jakob Kreie
- Central Facility of Electron Microscopy, Electron Microscopy Group of Materials Science, Universität Ulm, Ulm, Germany
| | - Mike Hambsch
- Faculty of Physics, Bielefeld University, Bielefeld, Germany
| | - Zihao Liang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GBRCE for Functional Molecular Engineering, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, IGCME and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, China
| | - Cheng Wang
- Center for Advancing Electronics Dresden and Faculty of Electrical and Computer Engineering, Dresden University of Technology, Dresden, Germany
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang, Guangdong, China
| | - Senhe Huang
- The Meso-Entropy Matter Lab, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xin Dong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GBRCE for Functional Molecular Engineering, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, IGCME and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, China
| | - Li Gong
- Instrumental Analysis Research Center, Sun Yat-sen University, Guangzhou, China
| | - Chaolun Liang
- Instrumental Analysis Research Center, Sun Yat-sen University, Guangzhou, China
| | - Dongyang Lou
- Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, School of Materials Science and Engineering, Guangzhou, China
| | - Zhipeng Zhou
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GBRCE for Functional Molecular Engineering, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, IGCME and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, China
| | - Jiaxing Lu
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GBRCE for Functional Molecular Engineering, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, IGCME and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, China
| | - Yang Yang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Xiaodong Zhuang
- The Meso-Entropy Matter Lab, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Haoyuan Qi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Ute Kaiser
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | | | - Wei Liu
- Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, School of Materials Science and Engineering, Guangzhou, China
| | - Armin Gölzhäuser
- Central Facility of Electron Microscopy, Electron Microscopy Group of Materials Science, Universität Ulm, Ulm, Germany
| | - Zhikun Zheng
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GBRCE for Functional Molecular Engineering, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, IGCME and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, China.
- Center for Advancing Electronics Dresden and Faculty of Electrical and Computer Engineering, Dresden University of Technology, Dresden, Germany.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang, Guangdong, China.
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2
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Interfacial Synthesis of an Ultrathin Two-Dimensional Polymer Film via [2 + 2] Photocycloaddition. Molecules 2023; 28:molecules28041930. [PMID: 36838919 PMCID: PMC9965025 DOI: 10.3390/molecules28041930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
A carbon-carbon-linked, ultrathin, two-dimensional (2D) polymer film was prepared at the air/water interface through photochemically triggered [2 + 2] cycloaddition. The preorganization of the monomers on the water surface and the subsequent photo-polymerization led to the successful preparation of the ultrathin 2D polymer film. The obtained film is continuous, free standing, and has a large area (over 50 μm2). Transmission electron microscopy (TEM) and atomic force microscopy (AFM) give clear evidence of the ultrathin film morphology. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) indicate successful photo-induced [2 + 2] polymerization.
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3
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Liu L, Geng B, Ji W, Wu L, Lei S, Hu W. A Highly Crystalline Single Layer 2D Polymer for Low Variability and Excellent Scalability Molecular Memristors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208377. [PMID: 36398525 DOI: 10.1002/adma.202208377] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Large-scale growth of highly crystalline single layer 2D polymers (SL-2DPs) and their subsequent integration into memristors is key to advancing the development of high-density data storage devices. However, leakage problems resulting from the porous structure of 2DPs continue to make such advances extremely challenging. Herein, we overcome this issue by incorporating long alkoxy chains into key molecular building blocks to obtain a highly crystalline 2DP, as visualized by scanning tunneling microscopy, and prevent metal permeation in the subsequent device fabrication process. SL-2DP memristors constructed via direct evaporation of the top electrodes exhibit low variability (σVset = 0.14) due to the single-monomer-thick feature together with the high regular structure and coordination ability which minimizes the stochastic spatial distribution of conductive filaments (CFs) in both vertical and lateral dimensions. The variability is further decreased to 0.04 by confining the formation and fracture of CFs to the interface through the utilization of bilayer junctions. Using peak force tunneling atomic force microscopy, the nanometer scalability (< 50 nm2 ) and low power consumption of these molecular memristor devices are demonstrated.
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Affiliation(s)
- Lei Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Bowen Geng
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Wenyan Ji
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Lingli Wu
- Medical College, Northwest Minzu University, Lanzhou, 730000, China
| | - Shengbin Lei
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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4
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Dong M, Li W, Zhou J, You S, Sun C, Yao X, Qin C, Wang X, Su Z. Microenvironment Modulation of Imine‐based Covalent Organic Frameworks for
CO
2
Photoreduction. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Man Dong
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Wei Li
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Jie Zhou
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Si‐Qi You
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Chun‐Yi Sun
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Xiao‐Hui Yao
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Chao Qin
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Xin‐Long Wang
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
| | - Zhong‐Min Su
- National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Polyoxometalate Science of Ministry of Education Department of Chemistry, Northeast Normal University Changchun Jilin 130024 P.R. China
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5
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Li J, Xiao Y, shui F, Yi M, Zhang Z, Liu X, Zhang L, You Z, Yang R, Yang S, Li B, Bu X. Extremely Stable Sulfuric Acid Covalent Organic Framework for Highly Effective Ammonia Capture. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jinli Li
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Yun Xiao
- General English Department, College of Foreign Languages, Nankai University Tianjin 300071 China
| | - Feng shui
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Mao Yi
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Zhiyuan Zhang
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Xiongli Liu
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Laiyu Zhang
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Zifeng You
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Rufeng Yang
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Shiqi Yang
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Baiyan Li
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
| | - Xian‐He Bu
- School of Materials Science and Engineering, National Institute for Advanced Materials, TKL of Metal and Molecule‐Based Material Chemistry, Nankai University Tianjin 300350 P. R. China
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6
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Bin B, Ren X, Wang D, Wan L. Lewis Acid Catalyzed Synthesis of Vinylene Linked Two Dimensional Covalent Organic Frameworks. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bai Bin
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiao‐Rui Ren
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Dong Wang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Li‐Jun Wan
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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7
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Dong X, Yang J, Wang H, Zhao P, Tan F, Zhou Z, Ou Z, Gong L, Liu W, Chen X, Zheng Z. Synthesis of thin film of a three‐dimensional covalent organic framework as anti‐counterfeiting label. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100929] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xin Dong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Jing Yang
- Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong Province, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, State Key Laboratory of Optoelectronic Materials and Technologies School of Materials Science and Engineering, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Honglei Wang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Pei Zhao
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Fanglin Tan
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Zhipeng Zhou
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Zhaowei Ou
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Li Gong
- Instrumental Analysis and Research Center, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Wei Liu
- Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong Province, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, State Key Laboratory of Optoelectronic Materials and Technologies School of Materials Science and Engineering, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Xudong Chen
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
| | - Zhikun Zheng
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of Chemistry, and State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat‐sen University Guangzhou 510275 PR China
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