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Ma L, Wang Y, Liu Y. van der Waals Contact for Two-Dimensional Transition Metal Dichalcogenides. Chem Rev 2024; 124:2583-2616. [PMID: 38427801 DOI: 10.1021/acs.chemrev.3c00697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Two-dimensional (2D) transition metal dichalcogenides (TMDs) have emerged as highly promising candidates for next-generation electronics owing to their atomically thin structures and surfaces devoid of dangling bonds. However, establishing high-quality metal contacts with TMDs presents a critical challenge, primarily attributed to their ultrathin bodies and delicate lattices. These distinctive characteristics render them susceptible to physical damage and chemical reactions when conventional metallization approaches involving "high-energy" processes are implemented. To tackle this challenge, the concept of van der Waals (vdW) contacts has recently been proposed as a "low-energy" alternative. Within the vdW geometry, metal contacts can be physically laminated or gently deposited onto the 2D channel of TMDs, ensuring the formation of atomically clean and electronically sharp contact interfaces while preserving the inherent properties of the 2D TMDs. Consequently, a considerable number of vdW contact devices have been extensively investigated, revealing unprecedented transport physics or exceptional device performance that was previously unachievable. This review presents recent advancements in vdW contacts for TMD transistors, discussing the merits, limitations, and prospects associated with each device geometry. By doing so, our purpose is to offer a comprehensive understanding of the current research landscape and provide insights into future directions within this rapidly evolving field.
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Affiliation(s)
- Likuan Ma
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Yiliu Wang
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Yuan Liu
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
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2
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Nguyen ST, Huong TTT, Ca NX, Nguyen CQ. Enhancing the electronic and optical properties of the metal/semiconductor NbS 2/BSe nanoheterostructure towards advanced electronics. NANOSCALE ADVANCES 2024; 6:1565-1572. [PMID: 38419869 PMCID: PMC10898431 DOI: 10.1039/d3na01086d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/30/2024] [Indexed: 03/02/2024]
Abstract
Metal-semiconductor (M-S) contacts play a vital role in advanced applications, serving as crucial components in ultracompact devices and exerting a significant impact on overall device performance. Here, in this work, we design a M-S nanoheterostructure between a metallic NbS2 monolayer and a semiconducting BSe monolayer using first-principles prediction. The stability of such an M-S nanoheterostructure is verified and its electronic and optical properties are also considered. Our results indicate that the NbS2/BSe nanoheterostructure is structurally, mechanically and thermally stable. The formation of the NbS2/BSe heterostructure leads to the generation of a Schottky contact with the Schottky barrier ranging from 0.36 to 0.51 eV, depending on the stacking configurations. In addition, the optical absorption coefficient of the NbS2/BSe heterostructure can reach up to 5 × 105 cm-1 at a photon energy of about 5 eV, which is still greater than that in the constituent NbS2 and BSe monolayers. This finding suggests that the formation of the M-S NbS2/BSe heterostructure gives rise to an enhancement in the optical absorption of both NbS2 and BSe monolayers. Notably, the tunneling probability and the contact tunneling-specific resistivity at the interface of the NbS2/BSe heterostructure are low, indicating its applicability in emerging nanoelectronic devices, such as Schottky diodes and field-effect transistors. Our findings offer valuable insights for the practical utilization of electronic devices based on the NbS2/BSe heterostructure.
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Affiliation(s)
- S T Nguyen
- Faculty of Electrical Engineering, Hanoi University of Industry Ha Noi 100000 Vietnam
| | - T T T Huong
- Institute of Science and Technology, TNU-University of Sciences Thai Nguyen Vietnam
- Department of Science and Technology, Ha Noi University of Industry Ha Noi 100000 Vietnam
| | - N X Ca
- Institute of Science and Technology, TNU-University of Sciences Thai Nguyen Vietnam
| | - C Q Nguyen
- Institute of Research and Development, Duy Tan University Da Nang 550000 Vietnam
- Faculty of Natural Sciences, Duy Tan University Da Nang 550000 Vietnam
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3
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Yu Z, Tao R, Guo J, Feng S, Wang Y. Direct Growth of Low Thermal Conductivity WTe 2 Nanocrystalline Films on W Films. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:401. [PMID: 38470732 DOI: 10.3390/nano14050401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/17/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024]
Abstract
WTe2 has attracted much attention because of its layered structure and special electronic energy band structure. However, due to the difficulty of evaporating the W element itself and the inactivity of the Te element, the obtained large-area WTe2 thin films are usually accompanied by many defects. In this paper, WTe2 nanocrystalline films were successfully prepared on quartz substrates using magnetron sputtering and chemical vapor deposition techniques. Various analytical techniques such as X-ray Diffraction, Raman spectra, X-ray Photoelectron Spectroscopy, Scanning Electron Microscope, and photoluminescence spectra are employed to analyze the crystal structure, composition, and morphology. The effects of different tellurization temperatures and tellurization times on the properties of WTe2 thin films were investigated. WTe2 nanocrystalline films with good crystallinity were obtained at 600 °C for 30 min. The thermal conductivity of the WTe2 films prepared under this condition was 1.173 Wm-1K-1 at 300 K, which is significantly higher than that of samples prepared using other methods.
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Affiliation(s)
- Zhisong Yu
- School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China
| | - Rong Tao
- School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China
| | - Jin Guo
- School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China
| | - Shiyi Feng
- School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China
| | - Yue Wang
- School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China
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4
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Nha PH, Nguyen CV, Hieu NN, Phuc HV, Nguyen CQ. Theoretical prediction of electronic properties and contact barriers in a metal/semiconductor NbS 2/Janus MoSSe van der Waals heterostructure. NANOSCALE ADVANCES 2024; 6:1193-1201. [PMID: 38356616 PMCID: PMC10863720 DOI: 10.1039/d3na00852e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/08/2024] [Indexed: 02/16/2024]
Abstract
The emergence of van der Waals (vdW) heterostructures, which consist of vertically stacked two-dimensional (2D) materials held together by weak vdW interactions, has introduced an innovative avenue for tailoring nanoelectronic devices. In this study, we have theoretically designed a metal/semiconductor heterostructure composed of NbS2 and Janus MoSSe, and conducted a thorough investigation of its electronic properties and the formation of contact barriers through first-principles calculations. The effects of stacking configurations and the influence of external electric fields in enhancing the tunability of the NbS2/Janus MoSSe heterostructure are also explored. Our findings demonstrate that the NbS2/MoSSe heterostructure is not only structurally and thermally stable but also exfoliable, making it a promising candidate for experimental realization. In its ground state, this heterostructure exhibits p-type Schottky contacts characterized by small Schottky barriers and low tunneling barrier resistance, showing its considerable potential for utilization in electronic devices. Additionally, our findings reveal that the electronic properties, contact barriers and contact types of the NbS2/MoSSe heterostructure can be tuned by applying electric fields. A negative electric field leads to a conversion from a p-type Schottky contact to an n-type Schottky contact, whereas a positive electric field gives rise to a transformation from a Schottky into an ohmic contact. These insights offer valuable theoretical guidance for the practical utilization of the NbS2/MoSSe heterostructure in the development of next-generation electronic and optoelectronic devices.
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Affiliation(s)
- P H Nha
- Faculty of Electrical Engineering, Hanoi University of Industry Hanoi 100000 Vietnam
| | - Chuong V Nguyen
- Department of Materials Science and Engineering, Le Quy Don Technical University Hanoi Vietnam
| | - Nguyen N Hieu
- Institute of Research and Development, Duy Tan University Da Nang 550000 Vietnam
- Faculty of Natural Sciences, Duy Tan University Da Nang 550000 Vietnam
| | - Huynh V Phuc
- Division of Theoretical Physics, Dong Thap University Cao Lanh 870000 Vietnam
| | - Cuong Q Nguyen
- Institute of Research and Development, Duy Tan University Da Nang 550000 Vietnam
- Faculty of Natural Sciences, Duy Tan University Da Nang 550000 Vietnam
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Liu H, Wu Y, Wu Z, Liu S, Zhang VL, Yu T. Coexisting Phases in Transition Metal Dichalcogenides: Overview, Synthesis, Applications, and Prospects. ACS NANO 2024; 18:2708-2729. [PMID: 38252696 DOI: 10.1021/acsnano.3c10665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Over the past decade, significant advancements have been made in phase engineering of two-dimensional transition metal dichalcogenides (TMDCs), thereby allowing controlled synthesis of various phases of TMDCs and facile conversion between them. Recently, there has been emerging interest in TMDC coexisting phases, which contain multiple phases within one nanostructured TMDC. By taking advantage of the merits from the component phases, the coexisting phases offer enhanced performance in many aspects compared with single-phase TMDCs. Herein, this review article thoroughly expounds the latest progress and ongoing efforts on the syntheses, properties, and applications of TMDC coexisting phases. The introduction section overviews the main phases of TMDCs (2H, 3R, 1T, 1T', 1Td), along with the advantages of phase coexistence. The subsequent section focuses on the synthesis methods for coexisting phases of TMDCs, with particular attention to local patterning and random formations. Furthermore, on the basis of the versatile properties of TMDC coexisting phases, their applications in magnetism, valleytronics, field-effect transistors, memristors, and catalysis are discussed. Lastly, a perspective is presented on the future development, challenges, and potential opportunities of TMDC coexisting phases. This review aims to provide insights into the phase engineering of 2D materials for both scientific and engineering communities and contribute to further advancements in this emerging field.
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Affiliation(s)
- Haiyang Liu
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Yaping Wu
- School of Physics and Technology, Xiamen University, Xiamen 361005, China
| | - Zhiming Wu
- School of Physics and Technology, Xiamen University, Xiamen 361005, China
| | - Sheng Liu
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
- Wuhan Institute of Quantum Technology, Wuhan 430206, China
| | - Vanessa Li Zhang
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Ting Yu
- School of Physics and Technology, Wuhan University, Wuhan 430072, China
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Qiao P, Xia J, Li X, Li Y, Cao J, Zhang Z, Lu H, Meng Q, Li J, Meng XM. Epitaxial van der Waals contacts of 2D TaSe 2-WSe 2 metal-semiconductor heterostructures. NANOSCALE 2023; 15:17036-17044. [PMID: 37846513 DOI: 10.1039/d3nr03538g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
The electronic contact between two-dimensional (2D) transition metal dichalcogenide (TMD) semiconductors and metal electrodes is a formidable challenge due to the undesired Schottky barrier, which severely limits the electrical performance of TMD devices and impedes the exploration of their unconventional physical properties and potential electronic applications. In this study, we report a two-step chemical vapor deposition (CVD) growth of 2D TaSe2-WSe2 metal-semiconductor heterostructures. Raman mapping confirms the precise spatial modulation of the as-grown 2D TaSe2-WSe2 heterostructures. Transmission electron microscopy (TEM) characterization reveals that this two-step method provides a high-quality and clean interface of the 2D TaSe2-WSe2 heterostructures. Meanwhile, the upper 1T-TaSe2 is formed heteroepitaxially on/around the pre-synthesized 2H-WSe2 monolayers, exhibiting an epitaxial relationship of (20-20)TaSe2//(20-20)WSe2 and [0001]TaSe2//[0001]WSe2. Furthermore, characterization studies using a Kelvin probe force microscope (KPFM) and electrical transport measurements present compelling evidence that the 2D metal-semiconductor heterostructures under investigation can improve the performance of electrical devices. These results bear substantial significance in augmenting the properties of field-effect transistors (FETs), leading to notable improvements in FET mobility and on/off ratio. Our study not only broadens the horizons of direct growth of high-quality 2D metal-semiconductor heterostructures but also sheds light on potential applications in future high-performance integrated circuits.
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Affiliation(s)
- Peiyu Qiao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Xuanze Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Yuye Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Jianyu Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Zhongshi Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Heng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
| | - Qing Meng
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
- Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jiangtao Li
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
- Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiang-Min Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- Centre of Material Science and Optoelectronic Engineering, University of Chinese Academy of Science, Beijing, 10049, P. R. China
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Zhou S, Liao L, Chen J, Yu Y, Lv Z, Yang M, Yao B, Zhang S, Peng G, Huang Z, Liu Y, Qi X, Wang G. Periodic Ferroelectric Stripe Domains in α-In 2Se 3 Nanoflakes Grown via Reverse-Flow Chemical Vapor Deposition. ACS APPLIED MATERIALS & INTERFACES 2023; 15:23613-23622. [PMID: 37149900 DOI: 10.1021/acsami.3c01886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The two-dimensional (2D) layered semiconductor α-In2Se3 has aroused great interest in atomic-scale ferroelectric transistors, artificial synapses, and nonvolatile memory devices due to its distinguished 2D ferroelectric properties. We have synthesized α-In2Se3 nanosheets with rare in-plane ferroelectric stripe domains at room temperature on mica substrates using a reverse flow chemical vapor deposition (RFCVD) method and optimized growth parameters. This stripe domain contrast is found to be strongly correlated to the stacking of layers, and the interrelated out-of-plane (OOP) and in-plane (IP) polarization can be manipulated by mapping the artificial domain structure. The acquisition of amplitude and phase hysteresis loops confirms the OOP polarization ferroelectric property. The emergence of striped domains enriches the variety of the ferroelectric structure types and novel properties of 2D In2Se3. This work paves a new way for the controllable growth of van der Waals ferroelectrics and facilitates the development of novel ferroelectric memory device applications.
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Affiliation(s)
- Suyuan Zhou
- Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, School of Physics and Optoelectronic, Xiangtan University, Xiangtan 411105, China
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Luocheng Liao
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
| | - Jiahao Chen
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Yayun Yu
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Zhiquan Lv
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Ming Yang
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Bowen Yao
- Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, School of Physics and Optoelectronic, Xiangtan University, Xiangtan 411105, China
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Sen Zhang
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Gang Peng
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
| | - Zongyu Huang
- Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, School of Physics and Optoelectronic, Xiangtan University, Xiangtan 411105, China
| | - Yunya Liu
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
| | - Xiang Qi
- Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, School of Physics and Optoelectronic, Xiangtan University, Xiangtan 411105, China
| | - Guang Wang
- Department of Physics, College of Sciences, National University of Defense Technology, Changsha 410073, China
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Godínez-García FJ, Guerrero-Rivera R, Martínez-Rivera JA, Gamero-Inda E, Ortiz-Medina J. Advances in two-dimensional engineered nanomaterials applications for the agro- and food-industries. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023. [PMID: 36922737 DOI: 10.1002/jsfa.12556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/09/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
Two-dimensional nanomaterials, such as graphene, transition metal dichalcogenides, MXenes, and other layered compounds, are the subject of intense theoretical and experimental research for applications in a wide range of advanced technological solutions, given their outstanding physical, chemical, and mechanical properties. In the context of food science and technology, their contributions are starting to appear, based on the advantages that two-dimensional nanostructures offer to agricultural- and food-related key topics, such as sustainable water use, nano-agrochemicals, novel nanosensing devices, and smart packaging technologies. These application categories facilitate the grasping of the current and potential uses of such advanced nanomaterials in the field, backed by their advantageous physical, chemical, and structural properties. Developments for water cleaning and reuse, efficient nanofertilizers and pesticides, ultrasensitive sensors for food contamination, and intelligent nanoelectronic disposable food packages are among the most promising application examples reviewed here and demonstrate the tremendous impact that further developments would have in the area as the fundamental and applied research of two-dimensional nanostructures continues. We expect this work will contribute to a better understanding of the promising characteristics of two-dimensional nanomaterials that could be used for the design of novel and feasible solutions in the agriculture and food areas. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Francisco Javier Godínez-García
- Division of Research and Postgraduate Studies and Department of Electrical/Electronics Engineering, TecNM/Instituto Tecnológico de Durango, Durango, Mexico
| | - Rubén Guerrero-Rivera
- Division of Research and Postgraduate Studies and Department of Electrical/Electronics Engineering, TecNM/Instituto Tecnológico de Durango, Durango, Mexico
| | - José Antonio Martínez-Rivera
- Division of Research and Postgraduate Studies and Department of Electrical/Electronics Engineering, TecNM/Instituto Tecnológico de Durango, Durango, Mexico
| | - Eduardo Gamero-Inda
- Division of Research and Postgraduate Studies and Department of Electrical/Electronics Engineering, TecNM/Instituto Tecnológico de Durango, Durango, Mexico
| | - Josué Ortiz-Medina
- Division of Research and Postgraduate Studies and Department of Electrical/Electronics Engineering, TecNM/Instituto Tecnológico de Durango, Durango, Mexico
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Yan X, Zhao Y, Cao G, Li X, Gao C, Liu L, Ahmed S, Altaf F, Tan H, Ma X, Xie Z, Zhang H. 2D Organic Materials: Status and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2203889. [PMID: 36683257 PMCID: PMC9982583 DOI: 10.1002/advs.202203889] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/31/2022] [Indexed: 06/17/2023]
Abstract
In the past few decades, 2D layer materials have gradually become a central focus in materials science owing to their uniquely layered structural qualities and good optoelectronic properties. However, in the development of 2D materials, several disadvantages, such as limited types of materials and the inability to synthesize large-scale materials, severely confine their application. Therefore, further exploration of new materials and preparation methods is necessary to meet technological developmental needs. Organic molecular materials have the advantage of being customizable. Therefore, if organic molecular and 2D materials are combined, the resulting 2D organic materials would have excellent optical and electrical properties. In addition, through this combination, the free design and large-scale synthesis of 2D materials can be realized in principle. Furthermore, 2D organic materials exhibit excellent properties and unique functionalities along with great potential for developing sensors, biomedicine, and electronics. In this review, 2D organic materials are divided into five categories. The preparation methods and material properties of each class of materials are also described in detail. Notably, to comprehensively understand each material's advantages, the latest research applications for each material are presented in detail and summarized. Finally, the future development and application prospects of 2D organic materials are briefly discussed.
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Affiliation(s)
- Xiaobing Yan
- School of Life Sciences, Institute of Life Science and Green Development, Key Laboratory of Brain‐Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electronic and Information EngineeringHebei UniversityBaoding071002China
| | - Ying Zhao
- School of Life Sciences, Institute of Life Science and Green Development, Key Laboratory of Brain‐Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electronic and Information EngineeringHebei UniversityBaoding071002China
| | - Gang Cao
- School of Life Sciences, Institute of Life Science and Green Development, Key Laboratory of Brain‐Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electronic and Information EngineeringHebei UniversityBaoding071002China
| | - Xiaoyu Li
- School of Life Sciences, Institute of Life Science and Green Development, Key Laboratory of Brain‐Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electronic and Information EngineeringHebei UniversityBaoding071002China
| | - Chao Gao
- School of Life Sciences, Institute of Life Science and Green Development, Key Laboratory of Brain‐Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electronic and Information EngineeringHebei UniversityBaoding071002China
| | - Luan Liu
- School of Life Sciences, Institute of Life Science and Green Development, Key Laboratory of Brain‐Like Neuromorphic Devices and Systems of Hebei ProvinceCollege of Electronic and Information EngineeringHebei UniversityBaoding071002China
| | - Shakeel Ahmed
- Collaborative Innovation Center for Optoelectronic Science and TechnologyInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Faizah Altaf
- Department of ChemistryWomen University Bagh Azad KashmirBagh Azad KashmirBagh12500Pakistan
- School of Materials Science and EngineeringGeorgia Institute of Technology North AvenueAtlantaGA30332USA
| | - Hui Tan
- Department of RespiratoryShenzhen Children's HospitalShenzhen518036P. R. China
| | - Xiaopeng Ma
- Department of RespiratoryShenzhen Children's HospitalShenzhen518036P. R. China
| | - Zhongjian Xie
- Institute of PediatricsShenzhen Children's HospitalShenzhenGuangdong518038P. R. China
- Shenzhen International Institute for Biomedical ResearchShenzhenGuangdong518116China
| | - Han Zhang
- Collaborative Innovation Center for Optoelectronic Science and TechnologyInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060P. R. China
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10
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Avilés MO, Jelken J, Lagugné-Labarthet F. Periodic Spiral Ripples on VS 2 Flakes: A Tip-Enhanced Raman Investigation. J Phys Chem Lett 2022; 13:9771-9776. [PMID: 36226836 DOI: 10.1021/acs.jpclett.2c02555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Using atmospheric-pressure chemical vapor deposition, we have synthesized vanadium disulfide (VS2) flakes with a metallic 1T phase that display nanoscale spiral surface ripples. To understand the origin of these chiral patterns in these transition metal dichalcogenides, tip-enhanced Raman spectroscopy and Kelvin probe force microscopies were jointly used to investigate their crystal structure, possible oxidation, and electronic properties, respectively. We found that the surface corrugation consists of small crystalline domains with distinct orientations. The change in local orientation is observed concomitantly with a spectral shift of the lattice modes of VS2 and results in the formation of grain boundaries between the domains with distinct orientation. Additionally, the periodic surface structure is modulating the work function of VS2 by 14 meV.
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Affiliation(s)
- María Olivia Avilés
- The Center for Advanced Materials and Biomaterials (CAMBR), Department of Chemistry, The University of Western Ontario (Western University), London, OntarioN6A 5B7, Canada
| | - Joachim Jelken
- The Center for Advanced Materials and Biomaterials (CAMBR), Department of Chemistry, The University of Western Ontario (Western University), London, OntarioN6A 5B7, Canada
| | - François Lagugné-Labarthet
- The Center for Advanced Materials and Biomaterials (CAMBR), Department of Chemistry, The University of Western Ontario (Western University), London, OntarioN6A 5B7, Canada
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11
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Zhao A, Gu Q, Haugan TJ, Bullard TJ, Klemm RA. Type-II quantum spin Hall effect in two-dimensional metals. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:485302. [PMID: 36191563 DOI: 10.1088/1361-648x/ac9720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
The quantum spin Hall (QSH) effect has been observed in topological insulators and long quantum wells using spin-orbit coupling as the probe, but it has not yet been observed in a metal. An experiment is proposed to measure the different Type-II QSH effect of an electron or hole in a two-dimensional (2D) metal by using the previously unexplored but relativistically gauge-invariant form of the generated 2D QSH Hamiltonian. Instead of using the electric field in the surface of the spin-polarized bands of a topological insulator or across the quantum well width as the probe, ones uses an applied azimuthal vector potential and an applied radial electric field as the tools to generate a spontaneously quantized spin current in an otherwise spin unpolarized 2D metal. A long cylindrical solenoid lies normally through the inner radius of a 2D metallic Corbino disk. The currentISsurrounding the solenoid produces an azimuthal magnetic vector potential but no magnetic field in the disk. In addition, a radial electric field is generated across the disk by imposing either a potential differenceΔvor a radial charge currentIacross its inner and outer radii. Combined changes inISand in eitherΔvorIgenerate spontaneously quantized azimuthal charge and spin currents. The experiment is designed to measure these quantized azimuthal charge and spin currents in the disk consistently. The quantum Hamiltonians for both experiments are solved exactly. A method to control the Joule heating is presented, which could potentially allow the Type-II QSH measurements to be made at room temperature.
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Affiliation(s)
- Aiying Zhao
- Institute of Theoretical Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
- Department of Physics, University of Central Florida, Orlando, FL 32816-2385, United States of America
| | - Qiang Gu
- Institute of Theoretical Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Timothy J Haugan
- U. S. Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433-7251, United States of America
| | - Thomas J Bullard
- U. S. Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433-7251, United States of America
| | - Richard A Klemm
- Department of Physics, University of Central Florida, Orlando, FL 32816-2385, United States of America
- U. S. Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433-7251, United States of America
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12
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Lu X, Zhou P, Chen S, Sun L. Strain-induced two-dimensional topological insulators in monolayer 1T'-RuO 2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:475502. [PMID: 36174549 DOI: 10.1088/1361-648x/ac965b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Because of their unique structure and novel physical properties, two-dimensional (2D) transition metal dichalcogenides (TMDs) have received a lot of attention in recent years. In this paper, we propose a new 2D TMD 1T'-RuO2with tunable topological properties. Based on first-principles calculations, we demonstrate that it has good dynamics, thermodynamic, energetic stability, and anisotropic mechanical properties. Although 1T'-RuO2is a typical semiconductor with a direct bandgap, it can be transformed into topological insulator by applying uniaxial tensile strains. The topological phase transition is attributed to thed-dband inversion at Γ point. The nontrivial topological property is further validated by the topological edge states. We predict that monolayer 1T'-RuO2is an excellent material for future electronic devices with tunable topological properties.
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Affiliation(s)
- Xin Lu
- School of Material Sciences and Engineering, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Pan Zhou
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Shuhui Chen
- School of Material Sciences and Engineering, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Lizhong Sun
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, People's Republic of China
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13
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Zhao R, Zhu Y, Zhou J, Liu B, Du Y, Gai S, Shen R, Feng L, Yang P. Dual Glutathione Depletion Enhanced Enzyme Catalytic Activity for Hyperthermia Assisted Tumor Therapy on Semi-Metallic VSe 2/Mn-CS. ACS NANO 2022; 16:10904-10917. [PMID: 35797013 DOI: 10.1021/acsnano.2c03222] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Semimetallic nanomaterials as photothermal agents for bioimaging and cancer therapy have attracted tremendous interest. However, the poor photothermal stability, low biocompatibility, and single component limit their therapeutic efficiency in cancer treatment. Here, manganese-doped VSe2 semimetallic nanosheets were prepared and subsequently modified with chitosan (named VSe2/Mn-CS NSs) for combined enzyme catalytic and photothermal therapy. VSe2/Mn-CS NSs show high photothermal property with a photothermal conversion efficiency of 34.61% upon 808 nm near-infrared laser irradiation. In the tumor microenvironment, VSe2/Mn-CS NSs can convert endogenous H2O2 into lethal hydroxyl radicals (•OH) to induce cancer cell apoptosis. The interaction between glutathione (GSH) and Se-Se bonds in VSe2/Mn-CS NSs results in the depletion of GSH level, and the valence states transition of manganese ions is also beneficial for the GSH consumption. This dual depletion of GSH markedly enhances the peroxidase (POD) activity, leading to the high •OH production and the improved therapeutic effect. What is more, the T1-weighted magnetic resonance and photoacoustic imaging endow VSe2/Mn-CS NSs with the ability to guide and track the treatment process. Our study provides a research strategy for the application of semimetallic nanomaterials in cancer diagnosis and treatment.
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Affiliation(s)
- Ruoxi Zhao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Yanlin Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Jialing Zhou
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Yaqian Du
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
- Yantai Research Institute, Harbin Engineering University, Yantai, 264000, P. R. China
| | - Ruifang Shen
- Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
- Yantai Research Institute, Harbin Engineering University, Yantai, 264000, P. R. China
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14
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Artemkina SB, Grayfer ED, Ivanova MN, Ledneva AY, Poltarak AA, Poltarak PA, Yarovoi SS, Kozlova SG, Fedorov VE. STRUCTURAL AND CHEMICAL FEATURES OF CHALCOGENIDES OF EARLY TRANSITION METALS. J STRUCT CHEM+ 2022. [DOI: 10.1134/s002247662207006x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Abstract
The quest for a clean, renewable and sustainable energy future has been highly sought for by the scientific community over the last four decades. Photocatalytic water splitting is a very promising technology to proffer a solution to present day environmental pollution and energy crises by generating hydrogen fuel through a “green route” without environmental pollution. Transition metal dichalcogenides (TMDCs) have outstanding properties which make them show great potential as effective co-catalysts with photocatalytic materials such as TiO2, ZnO and CdS for photocatalytic water splitting. Integration of TMDCs with a photocatalyst such as TiO2 provides novel nanohybrid composite materials with outstanding characteristics. In this review, we present the current state of research in the application of TMDCs in photocatalytic water splitting. Three main aspects which consider their properties, advances in the synthesis routes of layered TMDCs and their composites as well as their photocatalytic performances in the water splitting reaction are discussed. Finally, we raise some challenges and perspectives in their future application as materials for water-splitting photocatalysts.
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Ledneva AY, Chebanova GE, Artemkina SB, Lavrov AN. CRYSTALLINE AND NANOSTRUCTURED MATERIALS BASED ON TRANSITION METAL DICHALCOGENIDES: SYNTHESIS AND ELECTRONIC PROPERTIES. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622020020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hernandez Ruiz K, Wang Z, Ciprian M, Zhu M, Tu R, Zhang L, Luo W, Fan Y, Jiang W. Chemical Vapor Deposition Mediated Phase Engineering for 2D Transition Metal Dichalcogenides: Strategies and Applications. SMALL SCIENCE 2021. [DOI: 10.1002/smsc.202100047] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Karla Hernandez Ruiz
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional Materials College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Ziqian Wang
- Department of Materials Science and Engineering Johns Hopkins University Baltimore MD 21218 USA
| | - Matteo Ciprian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional Materials College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional Materials College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Rong Tu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China
| | - Lianmeng Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China
| | - Wei Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional Materials College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Yuchi Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional Materials College of Materials Science and Engineering, Donghua University Shanghai 201620 China
| | - Wan Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional Materials College of Materials Science and Engineering, Donghua University Shanghai 201620 China
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Huang H, Feng W, Chen Y. Two-dimensional biomaterials: material science, biological effect and biomedical engineering applications. Chem Soc Rev 2021; 50:11381-11485. [PMID: 34661206 DOI: 10.1039/d0cs01138j] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To date, nanotechnology has increasingly been identified as a promising and efficient means to address a number of challenges associated with public health. In the past decade, two-dimensional (2D) biomaterials, as a unique nanoplatform with planar topology, have attracted explosive interest in various fields such as biomedicine due to their unique morphology, physicochemical properties and biological effect. Motivated by the progress of graphene in biomedicine, dozens of types of ultrathin 2D biomaterials have found versatile bio-applications, including biosensing, biomedical imaging, delivery of therapeutic agents, cancer theranostics, tissue engineering, as well as others. The effective utilization of 2D biomaterials stems from the in-depth knowledge of structure-property-bioactivity-biosafety-application-performance relationships. A comprehensive summary of 2D biomaterials for biomedicine is still lacking. In this comprehensive review, we aim to concentrate on the state-of-the-art 2D biomaterials with a particular focus on their versatile biomedical applications. In particular, we discuss the design, fabrication and functionalization of 2D biomaterials used for diverse biomedical applications based on the up-to-date progress. Furthermore, the interactions between 2D biomaterials and biological systems on the spatial-temporal scale are highlighted, which will deepen the understanding of the underlying action mechanism of 2D biomaterials aiding their design with improved functionalities. Finally, taking the bench-to-bedside as a focus, we conclude this review by proposing the current crucial issues/challenges and presenting the future development directions to advance the clinical translation of these emerging 2D biomaterials.
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Affiliation(s)
- Hui Huang
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China. .,School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Wei Feng
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China.
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China. .,School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China.,Wenzhou Institute of Shanghai University, Wenzhou, 325000, P. R. China.,School of Medicine, Shanghai University, Shanghai, 200444, P. R. China
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19
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Liu H, Chen H, Liu X, Mo L, Chen C, Guo Z, Liu Z. Dual-responsive ultrathin 1T-phase niobium telluride nanosheet-based delivery systems for enhanced chemo-photothermal therapy. J Mater Chem B 2021; 9:8109-8120. [PMID: 34494067 DOI: 10.1039/d1tb01469b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1T-phase niobium telluride (NbTe2) nanosheets are becoming increasingly important in emerging fields, such as spintronics, sensors and magneto-optoelectronics, due to their excellent physical and chemical properties. However, exploration on their biomedical applications are limited. Herein, ultrathin 1T-phase NbTe2 single-crystalline nanosheets with excellent photothermal performance, high drug-loading rate, near-infrared (NIR) light/acidic pH-triggered drug release, and low toxicity were developed for potentiated photothermal therapy. Importantly, they showed excellent biocompatibility in vivo and in vitro. NbTe2 nanosheets loaded with integrated stress response inhibitors (ISRIB) could achieve chemo-photothermal therapy of tumors through the ATF4-ASNS signaling axis. Ultrathin 1T-phase NbTe2 single-crystalline nanosheets with unique photothermal properties, drug loading rate and safety provide dramatic possibilities in biomedical applications, such as tissue imaging, photothermal therapeutics and pharmaceutics.
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Affiliation(s)
- Hao Liu
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P. R. China.
| | - Haolin Chen
- Department of Haematology, The Seventh Hospital of Sun Yat-sen University, Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiaoying Liu
- Cell Biology Department, Weifang Medical University, Weifang, 261053, China
| | - Luoqi Mo
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P. R. China.
| | - Chao Chen
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P. R. China.
| | - Zhouyi Guo
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P. R. China.
| | - Zhiming Liu
- Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P. R. China.
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20
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Kim DH, Ramesh R, Nandi DK, Bae JS, Kim SH. Atomic layer deposition of tungsten sulfide using a new metal-organic precursor and H 2S: thin film catalyst for water splitting. NANOTECHNOLOGY 2021; 32:075405. [PMID: 33108773 DOI: 10.1088/1361-6528/abc50b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Transition metal dichalcogenides (TMDs) are extensively researched in the past few years due to their two-dimensional layered structure similar to graphite. This group of materials offers tunable optoelectronic properties depending on the number of layers and therefore have a wide range of applications. Tungsten disulfide (WS2) is one of such TMDs that has been studied relatively less compared to MoS2. Herein, WS x thin films are grown on several types of substrates by atomic layer deposition (ALD) using a new metal-organic precursor [tris(hexyne) tungsten monocarbonyl, W(CO)(CH3CH2C≡CCH2CH3)3] and H2S molecules at a relatively low temperature of 300 °C. The typical self-limiting film growth by varying both, precursor and reactant, is obtained with a relatively high growth per cycle value of ∼0.13 nm. Perfect growth linearity with negligible incubation period is also evident in this ALD process. While the as-grown films are amorphous with considerable S-deficiency, they can be crystallized as h-WS2 film by post-annealing in the H2S atmosphere above 700 °C as observed from x-ray diffractometry analysis. Several other analyses like Raman and x-ray photoelectron spectroscopy, transmission electron microscopy, UV-vis. spectroscopy are performed to find out the physical, optical, and microstructural properties of as-grown and annealed films. The post-annealing in H2S helps to promote the S content in the film significantly as confirmed by the Rutherford backscattering spectrometry. Extremely thin (∼4.5 nm), as-grown WS x films with excellent conformality (∼100% step coverage) are achieved on the dual trench substrate (minimum width: 15 nm, aspect ratio: 6.3). Finally, the thin films of WS x (as-grown and 600/700 °C annealed) on W/Si and carbon cloth substrate are investigated for electrochemical hydrogen evolution reaction (HER). The as-grown WS x shows poor performance towards HER and is attributed to the S-deficiency, amorphous character, and oxygen contamination of the WS x film. Annealing the WS x film at 700 °C results in the formation of a crystalline layered WS2 phase, which significantly improves the HER performance of the electrode. The study reveals the importance of sulfur content and crystallinity on the HER performance of W-based sulfides.
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Affiliation(s)
- Deok-Hyun Kim
- School of Materials Science and Engineering, Yeungnam University, 214-1, Dae-dong, Gyeongsan, Gyeongsangbuk-do 38541, Republic of Korea
| | - Rahul Ramesh
- School of Materials Science and Engineering, Yeungnam University, 214-1, Dae-dong, Gyeongsan, Gyeongsangbuk-do 38541, Republic of Korea
| | - Dip K Nandi
- School of Materials Science and Engineering, Yeungnam University, 214-1, Dae-dong, Gyeongsan, Gyeongsangbuk-do 38541, Republic of Korea
| | - Jong-Seong Bae
- Busan Center, Korea Basic Science Institute, 1275 Jisadong, Gangseogu, Busan 618-230, Republic of Korea
| | - Soo-Hyun Kim
- School of Materials Science and Engineering, Yeungnam University, 214-1, Dae-dong, Gyeongsan, Gyeongsangbuk-do 38541, Republic of Korea
- Institute of Materials Technology, Yeungnam University, 214-1, Dae-dong, Gyeongsan, Gyeongsangbuk-do 38541, Republic of Korea
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21
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Fu Q, Han J, Wang X, Xu P, Yao T, Zhong J, Zhong W, Liu S, Gao T, Zhang Z, Xu L, Song B. 2D Transition Metal Dichalcogenides: Design, Modulation, and Challenges in Electrocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e1907818. [PMID: 32578254 DOI: 10.1002/adma.201907818] [Citation(s) in RCA: 135] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 05/11/2023]
Abstract
Hydrogen has been deemed as an ideal substitute fuel to fossil energy because of its renewability and the highest energy density among all chemical fuels. One of the most economical, ecofriendly, and high-performance ways of hydrogen production is electrochemical water splitting. Recently, 2D transition metal dichalcogenides (also known as 2D TMDs) showed their utilization potentiality as cost-effective hydrogen evolution reaction (HER) catalysts in water electrolysis. Herein, recent representative research efforts and systematic progress made in 2D TMDs are reviewed, and future opportunities and challenges are discussed. Furthermore, general methods of synthesizing 2D TMDs materials are introduced in detail and the advantages and disadvantages for some specific methods are provided. This explanation includes several important regulation strategies of creating more active sites, heteroatoms doping, phase engineering, construction of heterostructures, and synergistic modulation which are capable of optimizing the electrical conductivity, exposure to the catalytic active sites, and reaction energy barrier of the electrode material to boost the HER kinetics. In the last section, the current obstacles and future chances for the development of 2D TMDs electrocatalysts are proposed to provide insight into and valuable guidelines for fabricating effective HER electrocatalysts.
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Affiliation(s)
- Qiang Fu
- School of Physics, Harbin Institute of Technology, Harbin, 150001, China
| | - Jiecai Han
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150001, China
| | - Xianjie Wang
- School of Physics, Harbin Institute of Technology, Harbin, 150001, China
| | - Ping Xu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Tai Yao
- Interdisciplinary Science Research Center, Harbin Institute of Technology, Harbin, 150001, China
| | - Jun Zhong
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Wenwu Zhong
- School of Advanced Study, Taizhou University, Taizhou, 317000, China
| | - Shengwei Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China
| | - Tangling Gao
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin, 150040, China
| | - Zhihua Zhang
- School of Materials Science and Engineering, Dalian Jiaotong University, Dalian, 116028, China
| | - Lingling Xu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, China
| | - Bo Song
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150001, China
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Wang P, Sun S, Jiang Y, Cai Q, Zhang YH, Zhou L, Fang S, Liu J, Yu Y. Hierarchical Microtubes Constructed by MoS 2 Nanosheets with Enhanced Sodium Storage Performance. ACS NANO 2020; 14:15577-15586. [PMID: 33108161 DOI: 10.1021/acsnano.0c06250] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Emerging sodium-ion batteries (SIBs) have aroused great attention in large-scale energy storage. However, it is still a great challenge to develop suitable electrode materials due to the large radius of Na+. This work demonstrates a strategy to synthesize hierarchical tubular MoS2 via a facial hydrothermal method with the assistance of tetramethylammonium bromide (TMAB). The results show that sufficient amounts of TMA+ ions are necessary to form the hierarchical tubular structures of MoS2. The obtained tubular MoS2 displays a high diffusion coefficient of Na+ ions, a high specific capacity of 652.5 mAh/g at the current density of 100 mA/g after 50 cycles, and a good cycling stability (94.2% of the initial capacity can be retained after 100 cycles at 1000 mA/g). In situ XRD during the discharge/charge process displays a reversible intercalation/deintercalation of Na+ into MoS2 layers followed by a conversion-type reaction. Systematic analyses reveal that the enhanced electrochemical performance is attributed to its tubular hierarchical structures with the wall composed of loosely stacked nanosheets, which can provide nearly unobstructed ion transportation paths, sufficient active sites, and enough space to mitigate the effects of the volume change during the discharge/charge process. This synthetic approach can be easily extended to other metal oxides and metal sulfides with hierarchical structures for versatile applications.
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Affiliation(s)
- Peiyuan Wang
- Henan Provincial Key Laboratory of Surface and Interface Science, Department of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China
| | - Shumin Sun
- Henan Provincial Key Laboratory of Surface and Interface Science, Department of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China
| | - Yu Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Qiong Cai
- DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering, and Advanced Technology Institute, University of Surrey, Guilford, Surrey GU2 7XH, U.K
| | - Yong-Hui Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Department of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science, Department of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China
| | - Shaoming Fang
- Henan Provincial Key Laboratory of Surface and Interface Science, Department of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People's Republic of China
| | - Jian Liu
- DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering, and Advanced Technology Institute, University of Surrey, Guilford, Surrey GU2 7XH, U.K
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
| | - Yan Yu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
- Dalian National Laboratory for Clean Energy (DNL), Chinese Academy of Sciences (CAS), Dalian City, Liaoning Province 116023, People's Republic of China
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Patra A, Rout CS. Anisotropic quasi-one-dimensional layered transition-metal trichalcogenides: synthesis, properties and applications. RSC Adv 2020; 10:36413-36438. [PMID: 35517917 PMCID: PMC9057157 DOI: 10.1039/d0ra07160a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 09/14/2020] [Indexed: 01/14/2023] Open
Abstract
The strong in-plane anisotropy and quasi-1D electronic structures of transition-metal trichalcogenides (MX3; M = group IV or V transition metal; X = S, Se, or Te) have pronounced influence on moulding the properties of MX3 materials. In particular, the infinite trigonal MX6 prismatic chains running parallel to the b-axis are responsible for the manifestation of anisotropy in these materials. Several marvellous properties, such as inherent electronic, optical, electrical, magnetic, superconductivity, and charge density wave (CDW) transport properties, make transition-metal trichalcogenides (TMTCs) stand out from other 2D materials in the fields of nanoscience and materials science. In addition, with the assistance of pressure, temperature, and tensile strain, these materials and their exceptional properties can be tuned to a superior extent. The robust anisotropy and incommensurable properties make the MX3 family fit for accomplishing quite a lot of compelling applications in the areas of field effect transistors (FETs), solar and fuel cells, lithium-ion batteries, thermoelectricity, etc. In this review article, a precise audit of the distinctive crystal structures, static and dynamic properties, efficacious synthesis schemes, and enthralling applications of quasi-1D MX3 materials is made.
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Affiliation(s)
- Abhinandan Patra
- Centre for Nano and Material Sciences, Jain University Jain Global Campus, Jakkasandra, Ramanagaram Bangalore-562112 India
| | - Chandra Sekhar Rout
- Centre for Nano and Material Sciences, Jain University Jain Global Campus, Jakkasandra, Ramanagaram Bangalore-562112 India
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24
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Nikonov KS, Il’yasov AS, Brekhovskikh MN. Thermodynamic Evaluation of Chemical Transport of VSe2 and ZrSe2 with Сl2 and I2 as Transporting Agents. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620090120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Tang Z, Neumann C, Winter A, Turchanin A. Electrochemical delamination assisted transfer of molecular nanosheets. NANOSCALE 2020; 12:8656-8663. [PMID: 32266915 DOI: 10.1039/d0nr01084g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Delamination and transfer of two-dimensional (2D) materials from their synthesis substrates onto target substrates is an important task for their implementation in both fundamental and applied research. To this end, the electrochemical delamination based transfer has been successfully applied to a variety of inorganic 2D materials grown on conductive substrates. However, this promising method has not yet been demonstrated for organic 2D materials, which have recently gained significant importance in the 2D materials family. Here, we present a transfer method of molecular nanosheets covalently bonded to metal substrates based on electrochemical delamination, which involves the cleavage of an Au-S bond and hydrogen evolution. We demonstrate a successful transfer of different types of carbon nanomembranes (CNMs) - about 1 nm thick molecular nanosheets - synthesized from aromatic thiol-based self-assembled monolayers on various polycrystalline gold substrates, onto new target substrates such as SiO2/Si wafers and transmission electron microscopy grids. We analyze the subsequent nanofabrication steps, and chemical and structural characteristics of the transferred supported and suspended CNMs by X-ray photoelectron spectroscopy (XPS), optical microscopy, atomic force microscopy (AFM) and scanning electron microscopy (SEM). The XPS analysis enables us to reveal the chemical mechanisms during the delamination process, whereas the complementary microscopy measurements confirm a high structural integrity of the transferred molecular nanosheets. We expect that the developed methodology can be applied to a broad variety of organic 2D materials synthesized on conductive substrates.
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Affiliation(s)
- Zian Tang
- Institute of Physical Chemistry, Friedrich Schiller University Jena, 07743 Jena, Germany.
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26
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Li XL, Li TC, Huang S, Zhang J, Pam ME, Yang HY. Controllable Synthesis of Two-Dimensional Molybdenum Disulfide (MoS 2 ) for Energy-Storage Applications. CHEMSUSCHEM 2020; 13:1379-1391. [PMID: 31821700 DOI: 10.1002/cssc.201902706] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/12/2019] [Indexed: 06/10/2023]
Abstract
Lamellar molybdenum disulfide (MoS2 ) has attracted a wide range of research interests in recent years because of its two-dimensional layered structure, ultrathin thickness, large interlayer distance, adjustable band gap, and capability to form different crystal structures. These special characteristics and high anisotropy have made MoS2 widely applicable in energy storage and harvesting. In this Minireview, a systematic and comprehensive introduction to MoS2 , as well as its composites, is presented. It is aimed to summarize the various synthetic methods of MoS2 -based composites and their application in energy-storage devices (lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries, and supercapacitors) in detail. Based on recent studies, this Minireview provides important and comprehensive guidelines for further study and development efforts in the MoS2 in energy-storage field.
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Affiliation(s)
- Xue Liang Li
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Tian Chen Li
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Shaozhuan Huang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Jian Zhang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Mei Er Pam
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore
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27
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Coelho PM, Lasek K, Nguyen Cong K, Li J, Niu W, Liu W, Oleynik II, Batzill M. Monolayer Modification of VTe 2 and Its Charge Density Wave. J Phys Chem Lett 2019; 10:4987-4993. [PMID: 31411022 DOI: 10.1021/acs.jpclett.9b01949] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interlayer interactions in layered transition metal dichalcogenides are known to be important for describing their electronic properties. Here, we demonstrate that the absence of interlayer coupling in monolayer VTe2 also causes their structural modification from a distorted 1T' structure in bulk and multilayer samples to a hexagonal 1T structure in the monolayer. X-ray photoemission spectroscopy indicates that this structural transition is associated with electron transfer from the vanadium d bands to the tellurium atoms for the monolayer. This charge transfer may reduce the in-plane d orbital hybridization and thus favor the undistorted 1T structure. Phonon-dispersion calculations show that, in contrast to the 1T' structure, the 1T structure exhibits imaginary phonon modes that lead to a charge density wave (CDW) instability, which is also observed by low-temperature scanning tunneling microscopy as a 4 × 4 periodic lattice distortion. Thus, this work demonstrates a novel CDW material, whose properties are tuned by interlayer interactions.
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Affiliation(s)
- Paula Mariel Coelho
- Department of Physics, University of South Florida, Tampa, Florida 33620, United States
| | - Kinga Lasek
- Department of Physics, University of South Florida, Tampa, Florida 33620, United States
| | - Kien Nguyen Cong
- Department of Physics, University of South Florida, Tampa, Florida 33620, United States
| | - Jingfeng Li
- Department of Physics, University of South Florida, Tampa, Florida 33620, United States
| | - Wei Niu
- Department of Electronic Engineering, Royal Holloway University of London, Egham TW20 0EX, U.K
- New Energy Technology Engineering Laboratory of Jiangsu Provence and School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Wenqing Liu
- Department of Electronic Engineering, Royal Holloway University of London, Egham TW20 0EX, U.K
| | - Ivan I Oleynik
- Department of Physics, University of South Florida, Tampa, Florida 33620, United States
| | - Matthias Batzill
- Department of Physics, University of South Florida, Tampa, Florida 33620, United States
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28
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Omar AM, Metwalli OI, Saber MR, Khabiri G, Ali MEM, Hassen A, Khalil MMH, Maarouf AA, Khalil ASG. Revealing the role of the 1T phase on the adsorption of organic dyes on MoS2 nanosheets. RSC Adv 2019; 9:28345-28356. [PMID: 35529663 PMCID: PMC9071015 DOI: 10.1039/c9ra05427h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 08/29/2019] [Indexed: 01/02/2023] Open
Abstract
Herein, different phases of MoS2 nanosheets were synthesized, characterized and tested for dye removal from water. The influence of the MoS2 phases as well as the 1T concentration on the adsorption performance of organic dyes MO, RhB and MB was deeply investigated. The results revealed that the 1T-rich MoS2 nanosheets have superior adsorption performance compared to other 2H and 3R phases. The kinetic results of the adsorption process demonstrate that the experimental data followed the pseudo-second order equation. Meanwhile, the adsorption of dyes over the obtained materials was fitted with several isotherm models. The Langmuir model gives the best fitting to the experimental data with maximum a adsorption capacity of 787 mg g−1. The obtained capacity is significantly higher than that of all previous reports for similar MoS2 materials. Computational studies of the 2H and 1T/2H-MoS2 phases showed that the structural defects present at the 1T/2H grain boundaries enhance the binding of hydroxide and carboxyl groups to the MoS2 surface which in turn increase the adsorption properties of the 1T/2H-MoS2 phase. The high adsorption capacity of dyes onto the 1T-rich MoS2 samples is due to the strong binding between the hydroxide/carboxyl groups and the 1T active sites. The capacity can be tuned by controlling the ratio between 1T and 2H phases of MoS2 nanosheets.![]()
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Affiliation(s)
- Asmaa M. Omar
- Environmental and Smart Technology Group (ESTG)
- Physics Department
- Faculty of Science
- Fayoum University
- 63514 Fayoum
| | - Ossama I. Metwalli
- Environmental and Smart Technology Group (ESTG)
- Physics Department
- Faculty of Science
- Fayoum University
- 63514 Fayoum
| | - Mohamed R. Saber
- Chemistry Department
- Faculty of Science
- Fayoum University
- 63514 Fayoum
- Egypt
| | - Gomaa Khabiri
- Environmental and Smart Technology Group (ESTG)
- Physics Department
- Faculty of Science
- Fayoum University
- 63514 Fayoum
| | - Mohamed E. M. Ali
- Water Pollution Research Department
- National Research Centre
- Giza
- Egypt
| | - Arafa Hassen
- Environmental and Smart Technology Group (ESTG)
- Physics Department
- Faculty of Science
- Fayoum University
- 63514 Fayoum
| | | | - Ahmed A. Maarouf
- Department of Physics
- IRMC
- Imam Abdulrahman Bin Faisal University
- Saudia Arabia
| | - Ahmed S. G. Khalil
- Environmental and Smart Technology Group (ESTG)
- Physics Department
- Faculty of Science
- Fayoum University
- 63514 Fayoum
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