151
|
Schweicher G, Garbay G, Jouclas R, Vibert F, Devaux F, Geerts YH. Molecular Semiconductors for Logic Operations: Dead-End or Bright Future? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905909. [PMID: 31965662 DOI: 10.1002/adma.201905909] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/18/2019] [Indexed: 05/26/2023]
Abstract
The field of organic electronics has been prolific in the last couple of years, leading to the design and synthesis of several molecular semiconductors presenting a mobility in excess of 10 cm2 V-1 s-1 . However, it is also started to recently falter, as a result of doubtful mobility extractions and reduced industrial interest. This critical review addresses the community of chemists and materials scientists to share with it a critical analysis of the best performing molecular semiconductors and of the inherent charge transport physics that takes place in them. The goal is to inspire chemists and materials scientists and to give them hope that the field of molecular semiconductors for logic operations is not engaged into a dead end. To the contrary, it offers plenty of research opportunities in materials chemistry.
Collapse
Affiliation(s)
- Guillaume Schweicher
- Laboratoire de chimie des polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB) Boulevard du Triomphe, Brussels, 1050, Belgium
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Guillaume Garbay
- Laboratoire de chimie des polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB) Boulevard du Triomphe, Brussels, 1050, Belgium
| | - Rémy Jouclas
- Laboratoire de chimie des polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB) Boulevard du Triomphe, Brussels, 1050, Belgium
| | - François Vibert
- Laboratoire de chimie des polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB) Boulevard du Triomphe, Brussels, 1050, Belgium
| | - Félix Devaux
- Laboratoire de chimie des polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB) Boulevard du Triomphe, Brussels, 1050, Belgium
| | - Yves H Geerts
- Laboratoire de chimie des polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB) Boulevard du Triomphe, Brussels, 1050, Belgium
| |
Collapse
|
152
|
Ang EY, Ng TY, Yeo J, Lin R, Liu Z, Geethalakshmi K. Investigations on different two-dimensional materials as slit membranes for enhanced desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117653] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
153
|
Li G, Wang X, Han B, Zhang W, Qi S, Zhang Y, Qiu J, Gao P, Guo S, Long R, Tan Z, Song XZ, Liu N. Direct Growth of Continuous and Uniform MoS 2 Film on SiO 2/Si Substrate Catalyzed by Sodium Sulfate. J Phys Chem Lett 2020; 11:1570-1577. [PMID: 32013437 DOI: 10.1021/acs.jpclett.9b03879] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Because of its unique electronic band structure, molybdenum disulfide (MoS2) has been regarded as a star semiconducting material. However, direct growth of continuous and high-quality MoS2 films on SiO2/Si substrates is still very challenging. Here, we report a facile chemical vapor deposition (CVD) method based on synergistic modulation of precursor and Na2SO4 catalysis, realizing the centimeter scale growth of a continuous MoS2 film on SiO2/Si substrates. The as-grown MoS2 film had an excellent spatial homogeneity and crystal quality, with an edge length of the composite domain as large as 632 μm. Both experimental and theoretical results proved that Na tended to bond with SiO2 substrates rather than to interfere with as-grown MoS2. Thus, they showed decent and uniform electrical performance, with electron mobilities as high as 5.9 cm2 V-1 s-1. We believe our method will pave a new way for MoS2 toward real application in modern electronics.
Collapse
Affiliation(s)
- Guanmeng Li
- State Key Laboratory of Fine Chemicals, Panjin Branch of School of Chemical Engineering , Dalian University of Technology , 2 Dagong Road , Liaodongwan New District, Panjin 124221 , Liaoning , China
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Xiaoli Wang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , China
| | - Bo Han
- International Center for Quantum Materials and Electron Microscopy Laboratory, School of Physics , Peking University , Beijing 100871 , China
| | - Weifeng Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Shuyan Qi
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Yan Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Jiakang Qiu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Peng Gao
- International Center for Quantum Materials and Electron Microscopy Laboratory, School of Physics , Peking University , Beijing 100871 , China
- Collaborative Innovation Center of Quantum Matter , Beijing 100871 , China
| | - Shaoshi Guo
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , China
| | - Zhenquan Tan
- State Key Laboratory of Fine Chemicals, Panjin Branch of School of Chemical Engineering , Dalian University of Technology , 2 Dagong Road , Liaodongwan New District, Panjin 124221 , Liaoning , China
| | - Xue-Zhi Song
- State Key Laboratory of Fine Chemicals, Panjin Branch of School of Chemical Engineering , Dalian University of Technology , 2 Dagong Road , Liaodongwan New District, Panjin 124221 , Liaoning , China
| | - Nan Liu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , China
| |
Collapse
|
154
|
Zheng M, Cai W, Fang Y, Wang X. Nanoscale boron carbonitride semiconductors for photoredox catalysis. NANOSCALE 2020; 12:3593-3604. [PMID: 32020138 DOI: 10.1039/c9nr09333h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The conversion of solar energy to chemical energy achieved by photocatalysts comprising homogeneous transition-metal based systems, organic dyes, or semiconductors has received significant attention in recent years. Among these photocatalysts, boron carbon nitride (BCN) materials, as an emerging class of metal-free heterogeneous semiconductors, have extended the scope of photocatalysts due to their good performance and Earth abundance. The combination of boron (B), carbon (C), and nitrogen (N) constitutes a ternary system with large surface area and abundant activity sites, which together contribute to the good performance for reduction reactions, oxidation reactions and orchestrated both reduction and oxidation reactions. This Minireview reports the methods for the synthesis of nanoscale hexagonal boron carbonitride (h-BCN) and describes the latest advances in the application of h-BCN materials as semiconductor photocatalysts for sustainable photosynthesis, such as water splitting, reduction of CO2, acceptorless dehydrogenation, oxidation of sp3 C-H bonds, and sp2 C-H functionalization. h-BCN materials may have potential for applications in other organic transformations and industrial manufacture in the future.
Collapse
Affiliation(s)
- Meifang Zheng
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - Wancang Cai
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| |
Collapse
|
155
|
Tyagi D, Wang H, Huang W, Hu L, Tang Y, Guo Z, Ouyang Z, Zhang H. Recent advances in two-dimensional-material-based sensing technology toward health and environmental monitoring applications. NANOSCALE 2020; 12:3535-3559. [PMID: 32003390 DOI: 10.1039/c9nr10178k] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Monitoring harmful and toxic chemicals, gases, microorganisms, and radiation has been a challenge to the scientific community for the betterment of human health and environment. Two-dimensional (2D)-material-based sensors are highly efficient and compatible with modern fabrication technology, which yield data that can be proficiently used for health and environmental monitoring. Graphene and its oxides, black phosphorus (BP), transition metal dichalcogenides (TMDCs), metal oxides, and other 2D nanomaterials have demonstrated properties that have been alluring for the manufacture of highly sensitive sensors due to their unique material properties arising from their inherent structures. This review summarizes the properties of 2D nanomaterials that can provide a platform to develop high-performance sensors. In this review, we have also discussed the advances made in the field of infrared photodetectors and electrochemical sensors and how the structural properties of 2D nanomaterials affect sensitivity and performance. Further, this review highlights 2D-nanomaterial-based electrochemical sensors that can be used to check for contaminations from heavy metals, organic/inorganic compounds, poisonous gases, pesticides, bacteria, antibiotics, etc., in water or air, which are severe risks to human wellbeing as well as the environment. Moreover, the limitations, future prospects, and challenges for the development of sensors based on 2D materials are also discussed for future advancements.
Collapse
Affiliation(s)
- Deepika Tyagi
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China. and College of Electronic Science and Technology of Shenzhen University, THz Technical Research Center of Shenzhen University, Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China
| | - Huide Wang
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Weichun Huang
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, P. R. China
| | - Lanping Hu
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, P. R. China
| | - Yanfeng Tang
- College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, P. R. China
| | - Zhinan Guo
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Zhengbiao Ouyang
- College of Electronic Science and Technology of Shenzhen University, THz Technical Research Center of Shenzhen University, Key Laboratory of Optoelectronics Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China.
| |
Collapse
|
156
|
Lodesani A, Picone A, Brambilla A, Finazzi M, Duò L, Ciccacci F. 3-dimensional nucleation of Fe oxide induced by a graphene buffer layer. J Chem Phys 2020; 152:054706. [PMID: 32035469 DOI: 10.1063/1.5138588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Shaping the morphology of oxide nanolayers is of paramount importance in tailoring their physical and chemical properties. Here, the influence of a two dimensional graphene buffer layer on the growth of Fe oxide has been investigated by comparing the oxide deposition on a Ni(111) and a graphene/Ni(111) substrate. Scanning tunneling microscopy images acquired at a mesoscopic scale indicate that Fe oxide grows layer-by-layer on the bare Ni(111) surface, while the nucleation of three-dimensional clusters is induced by graphene. Atomically resolved images reveal that Fe oxide adopts an in-plane lattice constant similar to that of the FeO(111) surface when deposited on Ni(111) and graphene/Ni(111), indicating in both cases, a weak interaction between the overlayer and the substrate. Accordingly, it is suggested that the different growth mode is mainly driven by the graphene-induced lowering of the substrate surface free energy.
Collapse
Affiliation(s)
| | - Andrea Picone
- Department of Physics, Politecnico di Milano, Milano 20133, Italy
| | | | - Marco Finazzi
- Department of Physics, Politecnico di Milano, Milano 20133, Italy
| | - Lamberto Duò
- Department of Physics, Politecnico di Milano, Milano 20133, Italy
| | - Franco Ciccacci
- Department of Physics, Politecnico di Milano, Milano 20133, Italy
| |
Collapse
|
157
|
Jones LO, Mosquera MA, Ratner MA, Schatz GC. Control of Charge Carriers and Band Structure in 2D Monolayer Molybdenum Disulfide via Covalent Functionalization. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4607-4615. [PMID: 31898887 DOI: 10.1021/acsami.9b19639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The fine-tuning of electro-optic properties is critical for high-performing technologies. This is now obtainable with advanced nanostructures, particularly two-dimensional (2D) monolayer materials such as molybdenum disulfide (MoS2). Using spin-polarized periodic density functional theory (DFT), we find that the direct band gap (K → K') can be chemically tuned with covalently bound functional groups. With an electron-withdrawing group such as fluorine, we observe one occupied α and one unoccupied β band, which correspond to the addition of an α electron and a β hole, confirmed with the spin difference (Qα - Qβ) being 1. By increasing the electron-donating behavior with the replacement of F by H and then by Me, the occupied (valence) α band shifts upward in energy relative to the Fermi energy, and the unoccupied β shifts down until they are in contact with the Fermi energy. In addition, both α and β unoccupied (conduction) bands of the MoS2 shift down, relative to the Fermi energy, until they are in contact with the Fermi and the system can be described as metallic. The MoS2 + F system is thus a small gap semiconductor (0.96 eV), and the MoS2 + H and MoS2 + Me gaps are 0.21 and 0 eV (metallic), respectively. Spin density calculations illustrate the semilocalized nature of the α spin; however, this is not formed from the radical of the functionalizing group, but rather the resulting unpaired electron is on the sulfur atom after radical abstraction to form a covalent bond with the group. Five- and six-membered heterocycles were studied and further confirm these observations. Distinct from typical functional groups such as phenyl, we find evidence for the covalent bonding of pyrrole, cyclopentadiene, and pyridine to a sulfur atom of the MoS2 surface, from the new α and β bands in the band structure. The charge carrier nature of the 2D monolayers of functionalized MoS2 can be further tuned with charge doping (hole or electron), such that even the metallic systems can be returned to semiconducting states, but importantly as p-type conductors. Semilocalization of the spin states and control of the band gap can be generalized to other covalently functionalized 2D materials and appears suitable for electronic applications, such as photoluminescence devices, contact-free transistors, and quantum communication.
Collapse
Affiliation(s)
- Leighton O Jones
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - Martín A Mosquera
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - Mark A Ratner
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - George C Schatz
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| |
Collapse
|
158
|
Wang J, Luo S, Lin Y, Chen Y, Deng Y, Li Z, Meng K, Chen G, Huang T, Xiao S, Huang H, Zhou C, Ding L, He J, Huang J, Yuan Y. Templated growth of oriented layered hybrid perovskites on 3D-like perovskites. Nat Commun 2020; 11:582. [PMID: 31996680 PMCID: PMC6989653 DOI: 10.1038/s41467-019-13856-1] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 11/21/2019] [Indexed: 11/28/2022] Open
Abstract
The manipulation of crystal orientation from the thermodynamic equilibrium states is desired in layered hybrid perovskite films to direct charge transport and enhance the perovskite devices performance. Here we report a templated growth mechanism of layered perovskites from 3D-like perovskites which can be a general design rule to align layered perovskites along the out-of-plane direction in films made by both spin-coating and scalable blading process. The method involves suppressing the nucleation of both layered and 3D perovskites inside the perovskite solution using additional ammonium halide salts, which forces the film formation starts from solution surface. The fast drying of solvent at liquid surface leaves 3D-like perovskites which surprisingly templates the growth of layered perovskites, enabled by the periodic corner-sharing octahedra networks on the surface of 3D-like perovskites. This discovery provides deep insights into the nucleation behavior of octahedra-array-based perovskite materials, representing a general strategy to manipulate the orientation of layered perovskites. The orientation of layered perovskites plays a crucial role in their charge transport behavior and hence, the efficiency of related solar cells. Here, the authors find that preformed 3D-like perovskites can efficiently template the growth of layered perovskites and determine their orientation.
Collapse
Affiliation(s)
- Jifei Wang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Shiqiang Luo
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yun Lin
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Yifu Chen
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yehao Deng
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Zhimin Li
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Ke Meng
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Gang Chen
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Tiantian Huang
- State Key laboratory of high performance complex manufacturing, School of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Si Xiao
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Han Huang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Conghua Zhou
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jun He
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Yongbo Yuan
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China. .,State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, P. R. China.
| |
Collapse
|
159
|
Brown PA, Fischer SA, Kołacz J, Spillmann C, Gunlycke D. Thermotropic liquid crystal (5CB) on two-dimensional materials. Phys Rev E 2020; 100:062701. [PMID: 31962509 DOI: 10.1103/physreve.100.062701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Indexed: 11/07/2022]
Abstract
We present ground-state electronic properties of the liquid crystal 4-cyano-4^{'}-pentylbiphenyl (5CB) on the two-dimensional materials monolayer graphene, hexagonal boron nitride, and phosphorene. Our density functional theory results show that the physisorption is robust on all surfaces with the strongest binding of 5CB on phosphorene. All surfaces exhibit flexural distortion, especially monolayer graphene and hexagonal boron nitride. While we find type-I alignment for all three substrates, meaning the Fermi level of the system is in the HOMO-LUMO gap of 5CB, the band structures are qualitatively different. Unlike for graphene and phosphorene, the HOMO-LUMO of 5CB appear as localized states within the band gap of boron nitride. In addition, we find that the valence band for boron nitride is sensitive to the orientation of 5CB relative to the surface. The qualitatively different band structures demonstrate the importance of substrate selection for tailoring the electronic and optoelectronic properties of nematic liquid crystals on two-dimensional materials.
Collapse
Affiliation(s)
- Paul A Brown
- ASEE Post-Doctoral Fellow at the U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Sean A Fischer
- U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Jakub Kołacz
- U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | | | | |
Collapse
|
160
|
Agafonov V, Nargelienė V, Balakauskas S, Bukauskas V, Kamarauskas M, Lukša A, Mironas A, Rėza A, Šetkus A. Single variable defined technology control of the optical properties in MoS 2 films with controlled number of 2D-layers. NANOTECHNOLOGY 2020; 31:025602. [PMID: 31550684 DOI: 10.1088/1361-6528/ab4753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fabrication of practical devices based on the transient metal dichalcogenides (TMDs) can be successively extended to various areas of the applications if the large area growth technology can be intentionally controlled and the characteristics of the layers can be easily predicted. In present work we presented the principles of the technology control based on the single key variable that can be directly related to the sequence of the technological processes. The atomically thin MoS2 layers were used as a model material and the layers were obtained by the CVD synthesis of the molybdenum precursor. Our thorough study demonstrated that the method allowed to deliberately choose the number of the MoS2 two-dimensional (2D)-layers between 1 and 10 by simply choosing the precursor deposition time. The optical properties of the layers were characterised by the optical transitions that corresponded to the known band structure of the MoS2 layers. Fused calibration diagram was proposed as the practical tool for the technology control and it was proved to be highly successive in relating the 2D-properties of the films with the initial stage of the fabrication technology. The method can be adapted to the wafer size TMDs growth on the diverse substrates.
Collapse
Affiliation(s)
- Vladimir Agafonov
- Department of Physical Technologies, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
| | | | | | | | | | | | | | | | | |
Collapse
|
161
|
Thurakkal S, Zhang X. Recent Advances in Chemical Functionalization of 2D Black Phosphorous Nanosheets. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902359. [PMID: 31993294 PMCID: PMC6974947 DOI: 10.1002/advs.201902359] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/10/2019] [Indexed: 05/25/2023]
Abstract
Owing to their tunable direct bandgap, high charge carrier mobility, and unique in-plane anisotropic structure, black phosphorus nanosheets (BPNSs) have emerged as one of the most important candidates among the 2D materials beyond graphene. However, the poor ambient stability of black phosphorus limits its practical application, due to the chemical degradation of phosphorus atoms to phosphorus oxides in the presence of oxygen and/or water. Chemical functionalization is demonstrated as an efficient approach to enhance the ambient stability of BPNSs. Herein, various covalent strategies including radical addition, nitrene addition, nucleophilic substitution, and metal coordination are summarized. In addition, efficient noncovalent functionalization methods such as van der Waals interactions, electrostatic interactions, and cation-π interactions are described in detail. Furthermore, the preparations, characterization, and diverse applications of functionalized BPNSs in various fields are recapped. The challenges faced and future directions for the chemical functionalization of BPNSs are also highlighted.
Collapse
Affiliation(s)
- Shameel Thurakkal
- Division of Chemistry and BiochemistryDepartment of Chemistry and Chemical EngineeringChalmers University of TechnologyKemigården 4SE‐412 96GöteborgSweden
| | - Xiaoyan Zhang
- Division of Chemistry and BiochemistryDepartment of Chemistry and Chemical EngineeringChalmers University of TechnologyKemigården 4SE‐412 96GöteborgSweden
| |
Collapse
|
162
|
Jadwiszczak J, Keane D, Maguire P, Cullen CP, Zhou Y, Song H, Downing C, Fox D, McEvoy N, Zhu R, Xu J, Duesberg GS, Liao ZM, Boland JJ, Zhang H. MoS 2 Memtransistors Fabricated by Localized Helium Ion Beam Irradiation. ACS NANO 2019; 13:14262-14273. [PMID: 31790198 DOI: 10.1021/acsnano.9b07421] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Two-dimensional (2D) layered semiconductors have recently emerged as attractive building blocks for next-generation low-power nonvolatile memories. However, challenges remain in the controllable fabrication of bipolar resistive switching circuit components from these materials. Here, the experimental realization of lateral memtransistors from monolayer single-crystal molybdenum disulfide (MoS2) utilizing a focused helium ion beam is reported. Site-specific irradiation with the focused probe of a helium ion microscope creates a nanometer-scale defect-rich region, bisecting the MoS2 lattice. The reversible drift of these defects in the applied electric field modulates the resistance of the channel, enabling versatile memristive functionality. The device can reliably retain its resistance ratios and set/reset biases for 1180 switching cycles. Long-term potentiation and depression with sharp habituation are demonstrated. This work establishes the feasibility of ion irradiation for controllable fabrication of 2D memristive devices with promising key performance parameters, such as low power consumption. The applicability of these devices for synaptic emulation may address the demands of future neuromorphic architectures.
Collapse
Affiliation(s)
- Jakub Jadwiszczak
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Physics , Trinity College Dublin , Dublin 2 , Ireland
- State Key Laboratory for Mesoscopic Physics, School of Physics , Peking University , Beijing 100871 , People's Republic of China
- School of Material Science and Engineering , Nanchang University , Youxun W Road , Xinjian Qu, Nanchang Shi , Jiangxi Sheng 330031 , People's Republic of China
| | - Darragh Keane
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
| | - Pierce Maguire
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Physics , Trinity College Dublin , Dublin 2 , Ireland
| | - Conor P Cullen
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
| | - Yangbo Zhou
- School of Material Science and Engineering , Nanchang University , Youxun W Road , Xinjian Qu, Nanchang Shi , Jiangxi Sheng 330031 , People's Republic of China
| | - Huading Song
- State Key Laboratory for Mesoscopic Physics, School of Physics , Peking University , Beijing 100871 , People's Republic of China
| | - Clive Downing
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
| | - Daniel Fox
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Physics , Trinity College Dublin , Dublin 2 , Ireland
| | - Niall McEvoy
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
| | - Rui Zhu
- Electron Microscopy Laboratory, School of Physics , Peking University , Beijing 100871 , People's Republic of China
| | - Jun Xu
- Electron Microscopy Laboratory, School of Physics , Peking University , Beijing 100871 , People's Republic of China
| | - Georg S Duesberg
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
- State Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology , Universität der Bundeswehr München , Werner-Heisenberg-Weg 39 , Neubiberg 85577 , Germany
| | - Zhi-Min Liao
- State Key Laboratory for Mesoscopic Physics, School of Physics , Peking University , Beijing 100871 , People's Republic of China
- Collaborative Innovation Center of Quantum Matter , Beijing 100871 , People's Republic of China
| | - John J Boland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Chemistry , Trinity College Dublin , Dublin 2 , Ireland
| | - Hongzhou Zhang
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER) Research Centers , Trinity College Dublin , Dublin 2 , Ireland
- School of Physics , Trinity College Dublin , Dublin 2 , Ireland
| |
Collapse
|
163
|
Yang S, Kang SY, Choi TL. Morphologically Tunable Square and Rectangular Nanosheets of a Simple Conjugated Homopolymer by Changing Solvents. J Am Chem Soc 2019; 141:19138-19143. [DOI: 10.1021/jacs.9b10904] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sanghee Yang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Yun Kang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| |
Collapse
|
164
|
Zhu SH, Yan BL, Zeng W, Fan DH, Tang B, Liu FS, Liu X, Qin H, Liu QJ. A new criterion for the prediction of solid-state phase transition in TMDs. Phys Chem Chem Phys 2019; 21:24070-24076. [PMID: 31650994 DOI: 10.1039/c9cp03915e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The classical thermodynamic criterion for phase transition predicts whether the phase transition will occur according to whether the nth derivative of the state parameter is discontinuous, and the continuity verification of multi-order derivatives increases the difficulty and complexity of judgment for phase transition to a certain extent. Based on the reverse shifts of the DOS curves near the Fermi level, we propose a new criterion for solid-state phase transition named Conch Criterion, which has been verified in the TMD system. The new criterion can observe the occurrence of phase transition from another perspective besides the thermodynamic properties while mutually confirming the thermodynamic criterion.
Collapse
Affiliation(s)
- Sheng-Hai Zhu
- School of Physical Science and Technology, Southwest Jiaotong University, Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Chengdu 610031, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
165
|
Nitrogen mustard gas molecules and α-arsenene nanosheet interaction studies – A DFT insight. J Mol Graph Model 2019; 92:65-73. [DOI: 10.1016/j.jmgm.2019.07.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/13/2019] [Accepted: 07/13/2019] [Indexed: 12/19/2022]
|
166
|
Benzyl Chloride and Chlorobenzene Adsorption Studies on Bismuthene Nanosheet: A DFT Study. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01352-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
167
|
Ying H, Li X, Wu Y, Yao Y, Xi J, Su W, Jin C, Xu M, He Z, Zhang Q. High-performance ultra-violet phototransistors based on CVT-grown high quality SnS 2 flakes. NANOSCALE ADVANCES 2019; 1:3973-3979. [PMID: 36132114 PMCID: PMC9418408 DOI: 10.1039/c9na00471h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 08/21/2019] [Indexed: 05/07/2023]
Abstract
van der Waals layered two-dimensional (2D) metal dichalcogenides, such as SnS2, have garnered great interest owing to their new physics in the ultrathin limit, and become potential candidates for the next-generation electronics and/or optoelectronics fields. Herein, we report high-performance UV photodetectors established on high quality SnS2 flakes and address the relatively lower photodetection capability of the thinner flakes via a compatible gate-controlling strategy. SnS2 flakes with different thicknesses were mechanically exfoliated from CVT-grown high-quality 2H-SnS2 single crystals. The photodetectors fabricated using SnS2 flakes reveal a desired response performance (R λ ≈ 112 A W-1, EQE ≈ 3.7 × 104%, and D* ≈ 1.18 × 1011 Jones) under UV light with a very low power density (0.2 mW cm-2 @ 365 nm). Specifically, SnS2 flakes present a positive thickness-dependent photodetection behavior caused by the enhanced light absorption capacity of thicker samples. Fortunately, the responsivity of thin SnS2 flakes (e.g. ∼15 nm) could be indeed enhanced to ∼140 A W-1 under a gate bias of +20 V, reaching the performance level of thicker samples without gate bias (e.g. ∼144 A W-1 for a ∼60 nm flake). Our results offer an efficient way to choose 2D crystals with controllable thicknesses as optimal candidates for desirable optoelectronic devices.
Collapse
Affiliation(s)
- Haoting Ying
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Xin Li
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Yutong Wu
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Yi Yao
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Junhua Xi
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Weitao Su
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
- College of Science, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Chengchao Jin
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Minxuan Xu
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Zhiwei He
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| | - Qi Zhang
- College of Materials & Environmental Engineering, Hangzhou Dianzi University Xiasha Higher Education Zone Hangzhou 310018 P. R. China
| |
Collapse
|
168
|
Yeo J, Jung GS, Martín-Martínez FJ, Beem J, Qin Z, Buehler MJ. Multiscale Design of Graphyne-Based Materials for High-Performance Separation Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805665. [PMID: 30645772 PMCID: PMC7252433 DOI: 10.1002/adma.201805665] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/18/2018] [Indexed: 06/09/2023]
Abstract
By varying the number of acetylenic linkages connecting aromatic rings, a new family of atomically thin graph-n-yne materials can be designed and synthesized. Generating immense scientific interest due to its structural diversity and excellent physical properties, graph-n-yne has opened new avenues toward numerous promising engineering applications, especially for separation membranes with precise pore sizes. Having these tunable pore sizes in combination with their excellent mechanical strength to withstand high pressures, free-standing graph-n-yne is theoretically posited to be an outstanding membrane material for separating or purifying mixtures of either gases or liquids, rivaling or even dramatically exceeding the capabilities of current, state-of-art separation membranes. Computational modeling and simulations play an integral role in the bottom-up design and characterization of these graph-n-yne materials. Thus, here, the state of the art in modeling α-, β-, γ-, δ-, and 6,6,12-graphyne nanosheets for synthesizing graph-2-yne materials and 3D architectures thereof is discussed. Different synthesis methods are described and a broad overview of computational characterizations of graph-n-yne's electrical, chemical, and thermal properties is provided. Furthermore, a series of in-depth computational studies that delve into the specifics of graph-n-yne's mechanical strength and porosity, which confer superior performance for separation and desalination membranes, are reviewed.
Collapse
Affiliation(s)
- Jingjie Yeo
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, USA
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), Singapore 138632
| | - Gang Seob Jung
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Francisco J. Martín-Martínez
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jennifer Beem
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhao Qin
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Markus J. Buehler
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| |
Collapse
|
169
|
Pam ME, Hu J, Ang YS, Huang S, Kong D, Shi Y, Zhao X, Geng D, Pennycook SJ, Ang LK, Yang HY. High-Concentration Niobium-Substituted WS 2 Basal Domains with Reconfigured Electronic Band Structure for Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34862-34868. [PMID: 31433150 DOI: 10.1021/acsami.9b08232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Extrinsically controlling the intrinsic activity and stability of two-dimensional (2D) semiconducting materials by substitutional doping is crucial for energy-related applications. However, an in situ transition-metal doping strategy for uniform and large-area chemical vapor deposited 2D semiconductors remains a formidable challenge. Here, we successfully synthesize highly uniform niobium-substituted tungsten disulfide (Nb-WS2) monolayers, with a doping concentration of nearly 7% and sizes reaching 100 μm, through a metal dopant precursor route, using salt-catalyzed chemical vapor deposition (CVD). Our results reveal unusual effects in the structural, optical, electronic, and electrocatalysis characteristics of the Nb-WS2 monolayer. The Nb dopants readily induce a band restructuring effect, providing the most active site with a hydrogen adsorption energy of 0.175 eV and hence greatly improving its hydrogen evolution activity. The combined advantages of the unusual physics and chemistry by in situ CVD doping technique open the possibility in designing 2D-material-based electronics and catalysts of novel functionalities.
Collapse
Affiliation(s)
| | | | | | | | | | - Yumeng Shi
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering , Shenzhen University , Shenzhen 518060 , China
| | - Xiaoxu Zhao
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore
| | | | - Stephen J Pennycook
- Department of Materials Science and Engineering , National University of Singapore , 9 Engineering Drive 1 , Singapore 117575 , Singapore
- NUS Graduate School for Integrative Sciences and Engineering , National University of Singapore , 13 Centre for Life Sciences, #05-01, 28 Medical Drive , Singapore 117456 , Singapore
| | | | | |
Collapse
|
170
|
Dharani S, Nagarajan V, Chandiramouli R. Perceptions on the adsorption of COPD biomarker vapors on violet phosphorene nanosheet - A first-principles study. J Mol Graph Model 2019; 91:22-29. [DOI: 10.1016/j.jmgm.2019.05.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 12/18/2022]
|
171
|
Wu Q, Xu WW, Lin D, Wang J, Zeng XC. Two-Dimensional Gold Sulfide Monolayers with Direct Band Gap and Ultrahigh Electron Mobility. J Phys Chem Lett 2019; 10:3773-3778. [PMID: 31244267 DOI: 10.1021/acs.jpclett.9b01312] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It remains a pressing task to search for new two-dimensional (2D) semiconducting materials for future-generation electronic applications. By using density functional theory computations and global structure prediction methods, we demonstrate two new gold sulfide monolayers (2D Au2S and AuS), both exhibiting excellent electronic properties and high stabilities. All the gold sulfide monolayers are semiconductors with band gaps in the range 1.0-3.6 eV. In particular, the α-Au2S monolayer is predicted to possess a direct band gap of 1.0 eV and extremely high electron and hole mobilities of 8.45 × 104 and 0.40 × 104 cm2 V-1 S-1, respectively. The phonon dispersion calculations and ab initio molecular dynamics simulations indicate that the gold sulfide monolayers exhibit robust dynamical and thermal stabilities. Moreover, the α-Au2S monolayer appears to show strong oxidation resistibility. The novel electronic properties, coupled with structural and chemical stabilities, endow the new gold sulfide monolayers to be highly promising for future applications in nanoelectronics.
Collapse
Affiliation(s)
- Qisheng Wu
- School of Physics , Southeast University , Nanjing 211189 , P. R. China
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , United States
| | - Wen Wu Xu
- School of Physical Science and Technology , Ningbo University , Ningbo 315211 , P. R. China
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , United States
| | - Dongdong Lin
- School of Physical Science and Technology , Ningbo University , Ningbo 315211 , P. R. China
| | - Jinlan Wang
- School of Physics , Southeast University , Nanjing 211189 , P. R. China
| | - Xiao Cheng Zeng
- Department of Chemistry , University of Nebraska-Lincoln , Lincoln , Nebraska 68588 , United States
| |
Collapse
|
172
|
Meng Z, Stolz RM, Mirica KA. Two-Dimensional Chemiresistive Covalent Organic Framework with High Intrinsic Conductivity. J Am Chem Soc 2019; 141:11929-11937. [DOI: 10.1021/jacs.9b03441] [Citation(s) in RCA: 188] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zheng Meng
- Department of Chemistry, Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Robert M. Stolz
- Department of Chemistry, Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Katherine A. Mirica
- Department of Chemistry, Burke Laboratory, Dartmouth College, Hanover, New Hampshire 03755, United States
| |
Collapse
|
173
|
Princy Maria J, Bhuvaneswari R, Nagarajan V, Chandiramouli R. Diethanolamine and quaternium-15 interaction studies on antimonene nanosheet based on first-principles studies. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.04.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
174
|
Zhou B, Li Z, Wang J, Wang K. Superior spin-polarized electronic structure in MoS 2/MnO 2 heterostructures with an efficient hole injection. Phys Chem Chem Phys 2019; 21:10706-10715. [PMID: 31086862 DOI: 10.1039/c9cp01146c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional (2D) materials with intrinsic magnetism and low hole injection barriers to transition metal dichalcogenides are crucial to develop dopant-free all-2D p-type spin field effect transistors for CMOS logic and spintronic applications. Here, the electronic structures of 2D MoS2/MnO2 heterostructures are investigated by first-principles calculations, where the monolayered MnO2 has two polymorphs including magnetic metal h-MnO2 and magnetic semiconductor t-MnO2. Both the MoS2/h-MnO2 and MoS2/t-MnO2 heterostructures show p-type doping for MoS2. In the MoS2/h-MnO2 model with a semiconductor/metal contact, the charge transfer can affect the occupation of Mn 3d and O 2p orbitals, which results in a half-metallic characteristic of the heterostructure with a Schottky barrier height of only 0.15 eV. However, the MoS2/t-MnO2 model with a semiconductor/semiconductor contact shows a spin-gapless electronic structure. Moreover, the type-II band alignment of the MoS2/t-MnO2 heterostructure can facilitate the effective separation of electrons and holes, which can enhance the lifetime of interlayer excitons. The long interlayer exciton lifetime makes it a good candidate for electron-hole separators and related optoelectronic devices. By applying vertical compression, the spin channel of the half-metallic MoS2/h-MnO2 heterostructure can be reversed and the spin-gapless band structure of the MoS2/t-MnO2 heterostructure becomes half-metallic. Furthermore, by applying a gate voltage, the Schottky barrier height and the spin-gapless gap can be tailored. The tunable spin polarization, spin-polarized direction and exciton recombination rate provide a feasible way toward spintronics and optoelectronics.
Collapse
Affiliation(s)
- Baozeng Zhou
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Zheng Li
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Jiaming Wang
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Kangqiang Wang
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China.
| |
Collapse
|
175
|
Bhuvaneswari R, Maria JP, Nagarajan V, Chandiramouli R. DFT Study on the Interaction Properties of V-Series Nerve Agent Molecules on Novel Bismuthene Nanotubes. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01181-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
176
|
Liang Z, Zheng H, Cao R. Importance of Electrocatalyst Morphology for the Oxygen Reduction Reaction. ChemElectroChem 2019. [DOI: 10.1002/celc.201801859] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zuozhong Liang
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710119, P. R. China
| | - Haoquan Zheng
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710119, P. R. China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an 710119, P. R. China
| |
Collapse
|
177
|
Liu J, Zhou L, Huang K, Song X, Chen Y, Liang X, Gao J, Xiao X, Rümmeli MH, Fu L. Regulation of Two-Dimensional Lattice Deformation Recovery. iScience 2019; 13:277-283. [PMID: 30875609 PMCID: PMC6416774 DOI: 10.1016/j.isci.2019.02.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 02/23/2019] [Accepted: 02/25/2019] [Indexed: 11/26/2022] Open
Abstract
The lattice directly determines the electronic structure, and it enables controllably tailoring the properties by deforming the lattices of two-dimensional (2D) materials. Owing to the unbalanced electrostatic equilibrium among the dislocated atoms, the deformed lattice is thermodynamically unstable and would recover to the initial state. Here, we demonstrate that the recovery of deformed 2D lattices could be directly regulated via doping metal donors to reconstruct electrostatic equilibrium. Compared with the methods that employed external force fields with intrinsic instability and nonuniformity, the stretched 2D molybdenum diselenide (MoSe2) could be uniformly retained and permanently preserved via doping metal atoms with more outermost electrons and smaller electronegativity than Mo. We believe that the proposed strategy could open up a new avenue in directly regulating the atomic-thickness lattice and promote its practical applications based on 2D crystals.
Collapse
Affiliation(s)
- Jinxin Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lu Zhou
- Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Ke Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xianyin Song
- Department of Physics and Key Laboratory of Artificial Micro and Nanostructures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory and Center for Ion Beam Application, Wuhan University, Wuhan 430072, China
| | - Yunxu Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaoyang Liang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jin Gao
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou, Nano Science and Technology, Soochow University, Suzhou 215006, China
| | - Xiangheng Xiao
- Department of Physics and Key Laboratory of Artificial Micro and Nanostructures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory and Center for Ion Beam Application, Wuhan University, Wuhan 430072, China
| | - Mark H Rümmeli
- College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou, Nano Science and Technology, Soochow University, Suzhou 215006, China; Leibniz Institute for Solid State and Materials Research Dresden, P.O. Box 270116, Dresden 01069, Germany; Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze 41-819, Poland
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China; Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
| |
Collapse
|
178
|
Wang S, Luo Q, Fang WH, Long R. Interfacial Engineering Determines Band Alignment and Steers Charge Separation and Recombination at an Inorganic Perovskite Quantum Dot/WS 2 Junction: A Time Domain Ab Initio Study. J Phys Chem Lett 2019; 10:1234-1241. [PMID: 30818951 DOI: 10.1021/acs.jpclett.9b00285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Using time-domain density functional theory and nonadiabatic (NA) molecular dynamics, we demonstrate that interfacial interaction between WS2 and CsPbBr3 quantum dots (QDs) determines the band alignment, leading to a type-II and type-I heterojunction for the WS2 contacting with Cs/Br- and PbBr2-terminated facet QD, respectively. In the type-II heterojunction, electron transfer is faster than hole transfer arising due to the stronger NA coupling, higher density of electron acceptor states, and more and higher phonon modes involved. Both the electron and hole transfer times are subpicosecond, in agreement with experiments. The energy lost by the electron and hole is slower than charge transfer by several times, facilitating keeping charge carriers sufficiently "hot". Particularly, the electron-hole recombination occurs over 1 ns, favoring a long-lived charge-separated state. Detailed atomistic insights into the photoinduced charge and energy dynamics at the WS2/QD interface provide valuable guidelines for improving performance of perovskite/transition-metal dichalcogenide solar cells.
Collapse
Affiliation(s)
- Siyu Wang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Qiquan Luo
- Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , Hefei 230026 , People's Republic of China
| | - Wei-Hai Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , People's Republic of China
| |
Collapse
|
179
|
Kumar S, Mondal C, Pathak B. Double-Exchange Magnetic Interactions in High-Temperature Ferromagnetic Iron Chalcogenide Monolayers. Chemphyschem 2019; 20:873-880. [PMID: 30724434 DOI: 10.1002/cphc.201900002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 11/07/2022]
Abstract
Smythite ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub><mml:mrow><mml:mi>F</mml:mi> <mml:mi>e</mml:mi></mml:mrow> <mml:mn>3</mml:mn></mml:msub> <mml:msub><mml:mi>S</mml:mi> <mml:mn>4</mml:mn></mml:msub> </mml:mrow> </mml:math> ) is an iron-based chalcogenide with a lamellar structure, different from the compositionally identical mineral greigite. Owing to their natural abundance, such transition metal chalcogenides are promising materials for low-cost spintronic-based devices. Herein, we discuss the charge transfer processes and complex magnetic ordering in a two-dimensional (2D) smythite lattice. We find that <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>F</mml:mi> <mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow> <mml:mrow><mml:mn>2</mml:mn> <mml:mo>+</mml:mo></mml:mrow> </mml:msup> <mml:mo>/</mml:mo> <mml:mi>F</mml:mi> <mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow> <mml:mrow><mml:mn>3</mml:mn> <mml:mo>+</mml:mo></mml:mrow> </mml:msup> </mml:mrow> </mml:math> redox couple and complex magnetic ordering are governing factors in the charge transfer processes. A very strong ferromagnetic in-lattice coupling is also observed, which is attributed to the presence of three Fe-centres. To describe the magnetic behaviour molecular and periodic approaches have been considered. We found a substantial increase in Curie temperature with applied mechanical stress due to opening of the double exchange interaction angle. We also observe an in-plane Jahn-Teller distortion, which is further confirmed by the spin-orbit counter plot. Our study thus provides an insight into the double exchange mechanism favoured by the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>F</mml:mi> <mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow> <mml:mrow><mml:mn>2</mml:mn> <mml:mo>+</mml:mo></mml:mrow> </mml:msup> <mml:mo>/</mml:mo> <mml:mi>F</mml:mi> <mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow> <mml:mrow><mml:mn>3</mml:mn> <mml:mo>+</mml:mo></mml:mrow> </mml:msup> </mml:mrow> </mml:math> redox couple and results in a strong ferromagnetic ordering.
Collapse
Affiliation(s)
- Sourabh Kumar
- Discipline of Chemistry, Indian Institute of Technology (IIT), Indore, Indore, 453552, India
| | - Chiranjit Mondal
- Discipline of Metallurgy Engineering and Material Science, Indian Institute of Technology (IIT), Indore, Indore, 453552, India
| | - Biswarup Pathak
- Discipline of Chemistry, Indian Institute of Technology (IIT), Indore, Indore, 453552, India.,Discipline of Metallurgy Engineering and Material Science, Indian Institute of Technology (IIT), Indore, Indore, 453552, India
| |
Collapse
|
180
|
Xiao Y, Zhou M, Zeng M, Fu L. Atomic-Scale Structural Modification of 2D Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1801501. [PMID: 30886793 PMCID: PMC6402411 DOI: 10.1002/advs.201801501] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/20/2018] [Indexed: 05/02/2023]
Abstract
2D materials have attracted much attention since the discovery of graphene in 2004. Due to their unique electrical, optical, and magnetic properties, they have potential for various applications such as electronics and optoelectronics. Owing to thermal motion and lattice growth kinetics, different atomic-scale structures (ASSs) can originate from natural or intentional regulation of 2D material atomic configurations. The transformations of ASSs can result in the variation of the charge density, electronic density of state and lattice symmetry so that the property tuning of 2D materials can be achieved and the functional devices can be constructed. Here, several kinds of ASSs of 2D materials are introduced, including grain boundaries, atomic defects, edge structures, and stacking arrangements. The design strategies of these structures are also summarized, especially for atomic defects and edge structures. Moreover, toward multifunctional integration of applications, the modulation of electrical, optical, and magnetic properties based on atomic-scale structural modification are presented. Finally, challenges and outlooks are featured in the aspects of controllable structure design and accurate property tuning for 2D materials with ASSs. This work may promote research on the atomic-scale structural modification of 2D materials toward functional applications.
Collapse
Affiliation(s)
- Yao Xiao
- The Institute for Advanced Studies (IAS)Wuhan UniversityWuhan430072P. R. China
| | - Mengyue Zhou
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072P. R. China
| | - Mengqi Zeng
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072P. R. China
| | - Lei Fu
- The Institute for Advanced Studies (IAS)Wuhan UniversityWuhan430072P. R. China
- College of Chemistry and Molecular SciencesWuhan UniversityWuhan430072P. R. China
| |
Collapse
|
181
|
Vera de la Garza CG, Olmedo EM, Fomine S. Electronic structure of boron and nitrogen doped isomeric graphene nanoflakes. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
182
|
Liu J, Fu L. Controllable Growth of Graphene on Liquid Surfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800690. [PMID: 30536644 DOI: 10.1002/adma.201800690] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 09/29/2018] [Indexed: 06/09/2023]
Abstract
Controllable fabrication of graphene is necessary for its practical application. Chemical vapor deposition (CVD) approaches based on solid metal substrates with morphology-rich surfaces, such as copper (Cu) and nickel (Ni), suffer from the drawbacks of inhomogeneous nucleation and uncontrollable carbon precipitation. Liquid substrates offer a quasiatomically smooth surface, which enables the growth of uniform graphene layers. The fast surface diffusion rates also lead to unique growth and etching kinetics for achieving graphene grains with novel morphologies. The rheological surface endows the graphene grains with self-adjusted rotation, alignment, and movement that are driven by specific interactions. The intermediary-free transfer or the direct growth of graphene on insulated substrates is demonstrated using liquid metals. Here, the controllable growth process of graphene on a liquid surface to promote the development of attractive liquid CVD strategies is in focus. The exciting progress in controlled growth, etching, self-assembly, and delivery of graphene on a liquid surface is presented and discussed in depth. In addition, prospects and further developments in these exciting fields of graphene growth on a liquid surface are discussed.
Collapse
Affiliation(s)
- Jinxin Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| |
Collapse
|
183
|
Ge Y, Ji J, Zhang Q, Yuan Z, Jian A, Yang X, Xiao G, Zhang W, Sang S. Zero-energy-state-oriented tunability of spin polarization in zigzag-edged bowtie-shaped graphene nanoflakes under an electric field. NANOTECHNOLOGY 2019; 30:085201. [PMID: 30523826 DOI: 10.1088/1361-6528/aaf549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A comprehensive first-principles study of the correlation between zero-energy states and the tunability of the spin-selective semiconducting properties of zigzag-edged bowtie-shaped graphene nanoflakes under an electric field is presented for the first time. We demonstrate that the spin degenerate semiconducting ground state can be lifted by the electric field. In particular, we find that the number of zero-energy states ('the nullity') defined by the structural configuration determines the complexity and efficiency of the tunability of spin polarization. The fine-tuning of spin-dependent properties by the electric field originates from the manipulation of spin-polarized molecular orbital energies. We expect this study to aid the design of more effective and controllable low-dimensional molecular spintronics.
Collapse
Affiliation(s)
- Yang Ge
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education and College of Information Engineering, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
184
|
Ben-Melech Stan G, Caspary Toroker M. On the nature of trapped states in an MoS2 two-dimensional semiconductor with sulfur vacancies. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1576931] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Gabriela Ben-Melech Stan
- Department of Materials Science and Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Maytal Caspary Toroker
- Department of Materials Science and Engineering, Technion – Israel Institute of Technology, Haifa, Israel
- The Nancy and Stephen Grand Technion Energy Program, Technion – Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
185
|
Meng Z, Stolz RM, Mendecki L, Mirica KA. Electrically-Transduced Chemical Sensors Based on Two-Dimensional Nanomaterials. Chem Rev 2019; 119:478-598. [PMID: 30604969 DOI: 10.1021/acs.chemrev.8b00311] [Citation(s) in RCA: 249] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Electrically-transduced sensors, with their simplicity and compatibility with standard electronic technologies, produce signals that can be efficiently acquired, processed, stored, and analyzed. Two dimensional (2D) nanomaterials, including graphene, phosphorene (BP), transition metal dichalcogenides (TMDCs), and others, have proven to be attractive for the fabrication of high-performance electrically-transduced chemical sensors due to their remarkable electronic and physical properties originating from their 2D structure. This review highlights the advances in electrically-transduced chemical sensing that rely on 2D materials. The structural components of such sensors are described, and the underlying operating principles for different types of architectures are discussed. The structural features, electronic properties, and surface chemistry of 2D nanostructures that dictate their sensing performance are reviewed. Key advances in the application of 2D materials, from both a historical and analytical perspective, are summarized for four different groups of analytes: gases, volatile compounds, ions, and biomolecules. The sensing performance is discussed in the context of the molecular design, structure-property relationships, and device fabrication technology. The outlook of challenges and opportunities for 2D nanomaterials for the future development of electrically-transduced sensors is also presented.
Collapse
Affiliation(s)
- Zheng Meng
- Department of Chemistry, Burke Laboratory , Dartmouth College , Hanover , New Hampshire 03755 , United States
| | - Robert M Stolz
- Department of Chemistry, Burke Laboratory , Dartmouth College , Hanover , New Hampshire 03755 , United States
| | - Lukasz Mendecki
- Department of Chemistry, Burke Laboratory , Dartmouth College , Hanover , New Hampshire 03755 , United States
| | - Katherine A Mirica
- Department of Chemistry, Burke Laboratory , Dartmouth College , Hanover , New Hampshire 03755 , United States
| |
Collapse
|
186
|
Hou P, Xing S, Liu X, Chen C, Zhong X, Wang J, Ouyang X. Resistive switching behavior in α-In2Se3 nanoflakes modulated by ferroelectric polarization and interface defects. RSC Adv 2019; 9:30565-30569. [PMID: 35530230 PMCID: PMC9072215 DOI: 10.1039/c9ra06566k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/12/2019] [Indexed: 12/12/2022] Open
Abstract
Resistive switching devices based on ferroelectric two-dimensional (2D) van der Waals (vdW) nanomaterials may display simple structures, high density, high speed, and low power consumption, and can be used in flexible electronics and highly integrated devices. However, only a few studies about the in-plane (IP) resistive switching behavior of ferroelectric 2D vdW nanomaterials have been reported because it is very hard to achieve asymmetric barriers only by tuning the IP polarization directions when the electrodes of the planar device are all of the same type. In the current work, we developed a planar device based on an α-In2Se3 nanoflake, in which the IP/OOP (out-of-plane) polarization, free carriers and oxygen vacancies in SiO2 contribute to the resistive switching behavior of the device. This behavior of the device was shown to be affected by exposure to light, and the photoelectric performance was also investigated when the device was in the OFF state. The demonstration of this planar resistive switching device may promote the further development of resistive devices based on 2D vdW nanomaterials, and provide great inspiration for the development of new kinds of transistors. A planar device based on an α-In2Se3 nanoflake, in which the in-plane/out-of-plane polarization, free carriers and oxygen vacancies in SiO2 contribute to the resistive switching behavior of the device.![]()
Collapse
Affiliation(s)
- Pengfei Hou
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Siwei Xing
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Xin Liu
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Cheng Chen
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiangli Zhong
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Jinbin Wang
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| | - Xiaoping Ouyang
- Key Laboratory of Low-dimensional Materials and Application Technology
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- China
| |
Collapse
|
187
|
Jiang J, Li N, Zou J, Zhou X, Eda G, Zhang Q, Zhang H, Li LJ, Zhai T, Wee ATS. Synergistic additive-mediated CVD growth and chemical modification of 2D materials. Chem Soc Rev 2019; 48:4639-4654. [DOI: 10.1039/c9cs00348g] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
This review summarizes significant advances in the use of typical synergistic additives in growth of 2D materials with chemical vapor deposition, and the corresponding performance improvement of field effect transistors and photodetectors.
Collapse
Affiliation(s)
- Jizhou Jiang
- School of Environmental Ecology and Biological Engineering
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan
- P. R. China
| | - Neng Li
- State Key Laboratory of Silicate Materials for Architectures
- Wuhan University of Technology
- Wuhan
- P. R. China
| | - Jing Zou
- School of Environmental Ecology and Biological Engineering
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan
- P. R. China
| | - Xing Zhou
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Goki Eda
- Department of Physics
- National University of Singapore
- Singapore 117542
- Singapore
| | - Qingfu Zhang
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Hua Zhang
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Lain-Jong Li
- School of Materials Science and Engineering
- University of New South Wales
- Australia
| | - Tianyou Zhai
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Andrew T. S. Wee
- Department of Physics
- National University of Singapore
- Singapore 117542
- Singapore
| |
Collapse
|
188
|
Da Y, Liu J, Zhou L, Zhu X, Chen X, Fu L. Engineering 2D Architectures toward High-Performance Micro-Supercapacitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1802793. [PMID: 30133023 DOI: 10.1002/adma.201802793] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/11/2018] [Indexed: 05/23/2023]
Abstract
The rise of micro-supercapacitors is satisfying the demand for power storage in portable devices and wireless gadgets. But the miniaturization of the energy-storage components is significantly limited by their energy density. Electrode materials with adequate electrochemical active surfaces are therefore required for improving performance. 2D materials with ultralarge specific surface areas offer a broad portfolio of the development of high-performance micro-supercapacitors in spite of their several critical drawbacks. An architecture engineering strategy is therefore developed to break these natural limits and maximize the significant advantages of these materials. Based on the approaches of phase transformation, intercalation, surface modification, material hybridization, and hierarchical structuration, 2D architectures with improved conductivity, enlarged specific surface, enhanced redox activity, as well as the unique synergetic effect exhibit great promise in the application of miniaturized supercapacitors with highly enhanced performance. Herein, the architecture engineering of emerging 2D materials beyond graphene toward optimizing the performance of micro-supercapacitors is discussed, in order to promote the application of 2D architectures in miniaturized energy-storage devices.
Collapse
Affiliation(s)
- Yumin Da
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jinxin Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lu Zhou
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Xiaohui Zhu
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Xiaodong Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| |
Collapse
|
189
|
Sun L, Wang C, Xu L, Wang J, Liu X, Chen X, Yi GC. SbSI whisker/PbI2 flake mixed-dimensional van der Waals heterostructure for photodetection. CrystEngComm 2019. [DOI: 10.1039/c9ce00544g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mixed-dimensional van der Waals heterostructure formed from an individual SbSI whisker and individual PbI2 flake for photodetection.
Collapse
Affiliation(s)
- Lin Sun
- Department of Applied Physics and Shanghai Institute of Intelligent Electronics and Systems
- Donghua University
- Shanghai 201620
- P. R. China
| | - Chunrui Wang
- Department of Applied Physics and Shanghai Institute of Intelligent Electronics and Systems
- Donghua University
- Shanghai 201620
- P. R. China
| | - Liu Xu
- Department of Applied Physics and Shanghai Institute of Intelligent Electronics and Systems
- Donghua University
- Shanghai 201620
- P. R. China
| | - Jiale Wang
- Department of Applied Physics and Shanghai Institute of Intelligent Electronics and Systems
- Donghua University
- Shanghai 201620
- P. R. China
| | - Xiaoyun Liu
- Research Center for Analysis and Measurement
- Donghua University
- Shanghai 201620
- P. R. China
| | - Xiaoshuang Chen
- National Laboratory for Infrared Physics
- Shanghai Institute of Technical Physics
- Chinese Academy of Science
- Shanghai 200083
- P. R. China
| | - Gyu-Chul Yi
- Department of Physics and Research Institute of Advanced Materials
- Seoul National University
- Seoul 08826
- South Korea
| |
Collapse
|
190
|
Zhang J. Phase transformation in two-dimensional covalent organic frameworks under compressive loading. Phys Chem Chem Phys 2018; 20:29462-29471. [PMID: 30456404 DOI: 10.1039/c8cp05410j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
As a new class of two-dimensional (2D) materials, 2D covalent organic frameworks (COFs) are proven to possess remarkable electronic and magnetic properties. However, their mechanical behaviours remain almost unexplored. In this work, taking the recently synthesised dimethylmethylene-bridged triphenylamine (DTPA) sheet as an example, we investigate the mechanical behaviours of 2D COFs based on molecular dynamics simulations together with density functional theory calculations. A novel phase transformation is observed in DTPA sheets when a relatively large in-plane compressive strain is applied to them. Specifically, the crystal structures of the transformed phases are topographically different when the compressive loading is applied in different directions. The compression-induced phase transformation in DTPA sheets is attributed to the buckling of their kagome lattice structures and is found to have significant impacts on their material properties. After the phase transformation, Young's modulus, band gap and thermal conductivity of DTPA sheets are greatly reduced and become strongly anisotropic. Moreover, a large in-plane negative Poisson's ratio is found in the transformed phases of DTPA sheets. It is expected that the results of the compression-induced phase transformation and its influence on the material properties observed in the present DTPA sheets can be further extended to other 2D COFs, since most 2D COFs are found to possess a similar kagome lattice structure.
Collapse
Affiliation(s)
- Jin Zhang
- Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China.
| |
Collapse
|
191
|
Graphene and Other 2D Layered Hybrid Nanomaterial-Based Films: Synthesis, Properties, and Applications. COATINGS 2018. [DOI: 10.3390/coatings8120419] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This Special Issue contains a series of reviews and research articles demonstrating actual perspectives and future trends of 2D-based materials for the generation of functional films, coatings, and hybrid interfaces with controlled morphology and structure.
Collapse
|
192
|
Wang X, Song J, Qu J. Antimonen: von der experimentellen Herstellung zur praktischen Anwendung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xin Wang
- College of Optoelectronic EngineeringKey Lab of Optoelectronic Devices and Systems of Ministry of Education/Guangdong ProvinceShenzhen University Shenzhen 518060 China
| | - Jun Song
- College of Optoelectronic EngineeringKey Lab of Optoelectronic Devices and Systems of Ministry of Education/Guangdong ProvinceShenzhen University Shenzhen 518060 China
| | - Junle Qu
- College of Optoelectronic EngineeringKey Lab of Optoelectronic Devices and Systems of Ministry of Education/Guangdong ProvinceShenzhen University Shenzhen 518060 China
| |
Collapse
|
193
|
Wang X, Song J, Qu J. Antimonene: From Experimental Preparation to Practical Application. Angew Chem Int Ed Engl 2018; 58:1574-1584. [PMID: 30137673 DOI: 10.1002/anie.201808302] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Indexed: 01/01/2023]
Abstract
The two-dimensional material antimonene was first reported in 2015. Subsequently, its unique properties, including enhanced stability, high carrier mobility, and band-gap tunability, were predicted theoretically. These theoretical results have motivated experimental confirmation and thus a better understanding of this new material. Recently, the preparation of antimonene and its attempted use in several applications have attracted extensive attention. This Minireview focuses on both the experimental preparation and practical applications of antimonene, including the results of recent research on novel methods of preparing antimonene and its potential applications in optoelectronic devices, electrocatalysis, energy storage, and cancer therapy. Moreover, it provides insight that could further improve the preparation of antimonene and also describes numerous opportunities for application.
Collapse
Affiliation(s)
- Xin Wang
- College of Optoelectronic Engineering, Key Lab of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, Shenzhen University, Shenzhen, 518060, China
| | - Jun Song
- College of Optoelectronic Engineering, Key Lab of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, Shenzhen University, Shenzhen, 518060, China
| | - Junle Qu
- College of Optoelectronic Engineering, Key Lab of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, Shenzhen University, Shenzhen, 518060, China
| |
Collapse
|
194
|
Radhakrishnan S, Das D, Deng L, Sudeep PM, Colas G, de Los Reyes CA, Yazdi S, Chu CW, Martí AA, Tiwary CS, Filleter T, Singh AK, Ajayan PM. An Insight into the Phase Transformation of WS 2 upon Fluorination. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1803366. [PMID: 30239044 DOI: 10.1002/adma.201803366] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 08/20/2018] [Indexed: 06/08/2023]
Abstract
The transformation from semiconducting to metallic phase, accompanied by a structural transition in 2D transition metal dichalcogenides has attracted the attention of the researchers worldwide. The unconventional structural transformation of fluorinated WS2 (FWS2 ) into the 1T phase is described. The energy difference between the two phases debugs this transition, as fluorination enhances the stability of 1T FWS2 and makes it energetically favorable at higher F concentration. Investigation of the electronic and optical nature of FWS2 is supplemented by possible band structures and bandgap calculations. Magnetic centers in the 1T phase appear in FWS2 possibly due to the introduction of defect sites. A direct consequence of the phase transition and associated increase in interlayer spacing is a change in friction behavior. Friction force microscopy is used to determine this effect of functionalization accompanied phase transformation.
Collapse
Affiliation(s)
- Sruthi Radhakrishnan
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA
| | - Deya Das
- Materials Research Center, Indian Institute of Science, Bangalore, 560012, India
| | - Liangzi Deng
- Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX, 77004, USA
| | - Parambath M Sudeep
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S3G8, Canada
| | - Guillaume Colas
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S3G8, Canada
| | | | - Sadegh Yazdi
- Renewable and Sustainable Energy Institute, University of Colorado, Boulder, CO, 80309, USA
| | - Ching Wu Chu
- Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, TX, 77004, USA
- Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - Angel A Martí
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Chandra Sekhar Tiwary
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, West Bengal, 721302, India
| | - Tobin Filleter
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S3G8, Canada
| | - Abhishek K Singh
- Materials Research Center, Indian Institute of Science, Bangalore, 560012, India
| | - Pulickel M Ajayan
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, 77005, USA
| |
Collapse
|
195
|
Yun J, Zhang Y, Ren Y, Xu M, Yan J, Zhao W, Zhang Z. Tunable band gap of graphyne-based homo- and hetero-structures by stacking sequences, strain and electric field. Phys Chem Chem Phys 2018; 20:26934-26946. [PMID: 30283931 DOI: 10.1039/c8cp03533d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive investigation was carried out on graphyne/graphyne (Gyne/Gyne), graphyne-like BN/graphyne-like BN (BNyne/BNyne) and graphyne/graphyne-like BN (Gyne/BNyne) bilayer structures using van der Waals (vdW)-corrected density functional theory. These bilayers exhibited distinct stacking-dependent characteristics in their ground state electronic structure and also had different responses to external strain and a vertical electric field. For the Gyne/Gyne and Gyne/BNyne bilayers, the application of biaxial tensile strain led to an increase in the band gap, while the application of biaxial compressive strain in addition to uniaxial strain, either under tension or compression, induced a reduction in the band gap. However, in the case of the BNyne/BNyne bilayer, the application of biaxial tensile strain led to a decrease in the band gap, but an increase in the band gap occurred under biaxial compressive strain, which could be explained by a change in the ionic nature of the B-N bonds. Under a vertical electric field, the band gaps of the homo-bilayers (Gyne/Gyne and BNyne/BNyne) decreased and were symmetrical. However, the hetero-bilayer (Gyne/BNyne) exhibited a decreased band gap under a positive electric field, but an almost constant band gap under a negative electric field. The physical origin of the band gap variation under an electric field was unraveled using energy-band theory. Our findings pave the way for experimental research and provide valuable insight into two-dimensional vdW layered structures for use in next generation flexible nanoelectronics and optoelectronic devices.
Collapse
Affiliation(s)
- Jiangni Yun
- School of Information Science and Technology, Northwest University, Xi'an, 710127, P. R. China.
| | | | | | | | | | | | | |
Collapse
|
196
|
Sun W, Wu FG. Two-Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond. Chem Asian J 2018; 13:3378-3410. [DOI: 10.1002/asia.201800851] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/14/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering; Southeast University; 2 Sipailou Road Nanjing 210096 P. R. China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering; Southeast University; 2 Sipailou Road Nanjing 210096 P. R. China
| |
Collapse
|
197
|
Li F, Chen Z. Cu dimer anchored on C 2N monolayer: low-cost and efficient Bi-atom catalyst for CO oxidation. NANOSCALE 2018; 10:15696-15705. [PMID: 30091768 DOI: 10.1039/c8nr03394c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
By means of density functional theory (DFT) computations, we systemically investigated CO/O2 adsorption and CO oxidation pathways on a bi-atom catalyst, namely, a copper dimer anchored on a C2N monolayer (Cu2@C2N), and we compared it with its monometallic counterpart Cu1@C2N. The Cu dimer could be stably embedded into the porous C2N monolayer. The reactions between the adsorbed O2 and CO via both bi-molecular and tri-molecular Langmuir-Hinshelwood (L-H) and Eley-Rideal (E-R) mechanisms were comparably studied, and we found that the bi-atom catalyst Cu2@C2N possessed superior performance toward CO oxidation as compared to the single-atom catalyst Cu1@C2N. Our comparative study suggested that the newly predicted bi-atom catalyst, i.e., a copper dimer anchored on a suitable support is highly active for CO oxidation, which can provide a useful guideline for further developing highly effective and low-cost green nanocatalysts.
Collapse
Affiliation(s)
- Fengyu Li
- School of Physical Science and Technology, Inner Mongolia University, Hohhot, 010021, China
| | | |
Collapse
|
198
|
Chai J, Zhang D, Cheng J, Jia Y, Ba X, Gao Y, Zhu L, Wang H, Cao M. Facile synthesis of highly conductive MoS2/graphene nanohybrids with hetero-structures as excellent microwave absorbers. RSC Adv 2018; 8:36616-36624. [PMID: 35558962 PMCID: PMC9088970 DOI: 10.1039/c8ra08086k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 10/24/2018] [Indexed: 11/25/2022] Open
Abstract
Two-dimensional (2D) MoS2/graphene nanosheet (MoS2/GN) hybrids have been demonstrated to be promising microwave absorption (MA) materials due to their unique chemical and physical properties as well as rich impedance matching. However, the reported strategies for preparing MoS2/GN hybrids have limited their application potential due to the complex, high-cost and inefficient preparation processes. On the other hand, it is of note that the main source of graphene is based on converting insulating graphene oxides (GO) back to conductive reduced graphene oxides (RGO). Thus, the MA performance of obtained MoS2/RGO nanohybrids is greatly affected by the conversion process of GO. In this work, we prepared the MoS2/GN hybrids by a facile hydrothermal method with directly introducing highly pure and electroconductive GNs. It is found that the highest reflection loss value of the sample-wax containing 40% MoS2/GN is −57.31 dB at a thickness of 2.58 mm, and the bandwidth of RL values less than −10 dB can reach up to 12.28 GHz (from 5.72 to 18 GHz) when an appropriate absorber thickness between 1.5 and 4 mm is chosen. The excellent MA performances emanate from effective conjugation of MoS2 with GN (Mo–C bond between the interfaces), which provides the dielectric loss caused by multi-relaxation, conductance, and polarization. Taking into account the facile synthesis route and their excellent MA performance, the MoS2/GNs hybrid nanosheets and those composite materials with similar isomorphic hetero-structures are very promising for a wide range of MA applications. Two-dimensional (2D) MoS2/graphene nanosheet (MoS2/GN) hybrids have been demonstrated to be promising microwave absorption (MA) materials due to their unique chemical and physical properties as well as rich impedance matching.![]()
Collapse
Affiliation(s)
- Jixing Chai
- Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials
- Qiqihar University
- Qiqihar 161006
- China
- School of Materials Science and Engineering
| | - Deqing Zhang
- Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials
- Qiqihar University
- Qiqihar 161006
- China
- School of Materials Science and Engineering
| | - Junye Cheng
- Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering
- College of Mechatronics and Control Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Yixuan Jia
- School of Materials Science and Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Xuewei Ba
- School of Materials Science and Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Ya Gao
- School of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Lei Zhu
- School of Communication and Electronic Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Hao Wang
- Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering
- College of Mechatronics and Control Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Maosheng Cao
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| |
Collapse
|