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Liu H, Zhao J, Ly TH. Clean Transfer of Two-Dimensional Materials: A Comprehensive Review. ACS Nano 2024; 18:11573-11597. [PMID: 38655635 DOI: 10.1021/acsnano.4c01000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The growth of two-dimensional (2D) materials through chemical vapor deposition (CVD) has sparked a growing interest among both the industrial and academic communities. The interest stems from several key advantages associated with CVD, including high yield, high quality, and high tunability. In order to harness the application potentials of 2D materials, it is often necessary to transfer them from their growth substrates to their desired target substrates. However, conventional transfer methods introduce contamination that can adversely affect the quality and properties of the transferred 2D materials, thus limiting their overall application performance. This review presents a comprehensive summary of the current clean transfer methods for 2D materials with a specific focus on the understanding of interaction between supporting layers and 2D materials. The review encompasses various aspects, including clean transfer methods, post-transfer cleaning techniques, and cleanliness assessment. Furthermore, it analyzes and compares the advances and limitations of these clean transfer techniques. Finally, the review highlights the primary challenges associated with current clean transfer methods and provides an outlook on future prospects.
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Affiliation(s)
- Haijun Liu
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Jiong Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Thuc Hue Ly
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
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Abstract
Temporomandibular disorders (TMDs) and headache disorders are highly prevalent in the population. TMDs can present headache symptoms as a secondary headache and, in addition, be comorbid with primary headache disorders. This overlap has significant clinical implications for which it is essential for the physician to be aware, and they should screen for the potential presence of TMDs in a headache patient. Bruxism is a parafunctional behavior also prevalent in the population which has a role in TMDs and may influence headache symptomatology, but it is still necessary to clarify this relationship.
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Affiliation(s)
- Marcela Romero-Reyes
- Brotman Facial Pain Clinic, University of Maryland, School of Dentistry; Department of Neural and Pain Sciences, University of Maryland, Baltimore, School of Dentistry, 650 West Baltimore Street, Room 8253, Baltimore, MD 21201, USA.
| | - Jennifer P Bassiur
- Center for Oral, Facial & Head Pain, College of Dental Medicine, Columbia University Medical Center; Division of Oral & Maxillofacial Surgery, 620 West 168th Street, P & S Box 20, New York, NY 10032, USA
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Canton-Vitoria R, Kitaura R. Insulating 6,6-Phenyl-C61-butyric Acid Methyl Ester on Transition-Metal Dichalcogenides: Impact of the Hybrid Materials on the Optical and Electrical Properties. Chemistry 2024; 30:e202400150. [PMID: 38302733 DOI: 10.1002/chem.202400150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/03/2024]
Abstract
In this study we develop a strategy to insulate 6,6 -Phenyl C61 butyric acid methyl ester (PCBM) on the basal plane of transition metal dichalcogenides (TMDs). Concretely single layers of MoS2, MoSe2, MoTe2, WS2, WSe2 and WTe2 and ultrathin MoO2 and WO2 were grown via chemical vapor deposition (CVD). Then, the thiol group of a PCBM modified with cysteine reacts with the chalcogen vacancies on the basal plane of TMDs, yielding PCBM-MoS2, PCBM-MoSe2, PCBM-WS2, PCBM-WSe2, PCBM-WTe2, PCBM-MoO2 and PCBM-WO2. Afterwards, all the hybrid materials were characterized using several techniques, including XPS, Raman spectroscopy, TEM, AFM, and cyclic voltammetry. Furthermore, PCBM causes a unique optical and electrical impact in every TMDs. For MoS2 devices, the conductivity and photoluminescence (PL) emission achieve a remarkable enhancement of 1700 % and 200 % in PCBM-MoS2 hybrids. Similarly, PCBM-MoTe2 hybrids exhibit a 2-fold enhancement in PL emission at 1.1 eV. On the other hand, PCBM-MoSe2, PCBM-WSe2 and PCBM-WS2 hybrids exhibited a new interlayer exciton at 1.29-1.44, 1.7 and 1.37-154 eV along with an enhancement of the photo-response by 2400, 3200 and 600 %, respectively. Additionally, PCBM-WTe2 and PCBM-WO2 showed a modest photo-response, in sharp contrast with pristine WTe2 or WO2 which archive pure metallic character.
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Affiliation(s)
- Ruben Canton-Vitoria
- Department of Chemistry, Nagoya University, Nagoya, Aichi, 464-8602, Japan
- Theoretical and Physical Chemistry Institute Department of Chemistry, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635, Athens, Greec
| | - Ryo Kitaura
- Department of Chemistry, Nagoya University, Nagoya, Aichi, 464-8602, Japan
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
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Kuş E, Altındemir G, Bostan YK, Taşaltın C, Erol A, Wang Y, Sarcan F. A Dual-Channel MoS 2-Based Selective Gas Sensor for Volatile Organic Compounds. Nanomaterials (Basel) 2024; 14:633. [PMID: 38607167 PMCID: PMC11013178 DOI: 10.3390/nano14070633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
Significant progress has been made in two-dimensional material-based sensing devices over the past decade. Organic vapor sensors, particularly those using graphene and transition metal dichalcogenides as key components, have demonstrated excellent sensitivity. These sensors are highly active because all the atoms in the ultra-thin layers are exposed to volatile compounds. However, their selectivity needs improvement. We propose a novel gas-sensing device that addresses this challenge. It consists of two side-by-side sensors fabricated from the same active material, few-layer molybdenum disulfide (MoS₂), for detecting volatile organic compounds like alcohol, acetone, and toluene. To create a dual-channel sensor, we introduce a simple step into the conventional 2D material sensor fabrication process. This step involves treating one-half of the few-layer MoS₂ using ultraviolet-ozone (UV-O3) treatment. The responses of pristine few-layer MoS₂ sensors to 3000 ppm of ethanol, acetone, and toluene gases are 18%, 3.5%, and 49%, respectively. The UV-O3-treated few-layer MoS₂-based sensors show responses of 13.4%, 3.1%, and 6.7%, respectively. This dual-channel sensing device demonstrates a 7-fold improvement in selectivity for toluene gas against ethanol and acetone. Our work sheds light on understanding surface processes and interaction mechanisms at the interface between transition metal dichalcogenides and volatile organic compounds, leading to enhanced sensitivity and selectivity.
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Affiliation(s)
- Esra Kuş
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler, Istanbul 34134, Turkey; (E.K.); (Y.K.B.); (A.E.)
| | - Gülay Altındemir
- Materials Institute, TUBITAK Marmara Research Center, Gebze, Kocaeli 41470, Turkey; (G.A.); (C.T.)
| | - Yusuf Kerem Bostan
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler, Istanbul 34134, Turkey; (E.K.); (Y.K.B.); (A.E.)
| | - Cihat Taşaltın
- Materials Institute, TUBITAK Marmara Research Center, Gebze, Kocaeli 41470, Turkey; (G.A.); (C.T.)
| | - Ayse Erol
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler, Istanbul 34134, Turkey; (E.K.); (Y.K.B.); (A.E.)
| | - Yue Wang
- Department of Physics, School of Physics, Engineering and Technology, University of York, York YO10 5DD, UK
| | - Fahrettin Sarcan
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler, Istanbul 34134, Turkey; (E.K.); (Y.K.B.); (A.E.)
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Pawar KK, Kumar A, Mirzaei A, Kumar M, Kim HW, Kim SS. 2D nanomaterials for realization of flexible and wearable gas sensors: A review. Chemosphere 2024; 352:141234. [PMID: 38278446 DOI: 10.1016/j.chemosphere.2024.141234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/03/2024] [Accepted: 01/14/2024] [Indexed: 01/28/2024]
Abstract
Gas sensors are extensively employed for monitoring and detection of hazardous gases and vapors. Many of them are produced on rigid substrates, but flexible and wearable gas sensors are needed for intriguing usage including the internet of things (IoT) and medical devices. The materials with the greatest potential for the fabrication of flexible and wearable gas sensing devices are two-dimensional (2D) semiconducting nanomaterials, which consist of graphene and its substitutes, transition metal dichalcogenides, and MXenes. These types of materials have good mechanical flexibility, high charge carrier mobility, a large area of surface, an abundance of defects and dangling bonds, and, in certain instances adequate transparency and ease of synthesis. In this review, we have addressed the different 2D nonmaterial properties for gas sensing in the context of fabrication of flexible/wearable gas sensors. We have discussed the sensing performance of flexible/wearable gas sensors in various forms such as pristine, composite and noble metal decorated. We believe that content of this review paper is greatly useful for the researchers working in the research area of fabrication of flexible/wearable gas sensors.
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Affiliation(s)
- Krishna Kiran Pawar
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, South Korea; The Research Institute of Industrial Science, Hanyang University, Seoul, 04763, South Korea; School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, India
| | - Ashok Kumar
- Department of Electrical Engineering, Indian Institute of Technology, Jodhpur, 342030, India
| | - Ali Mirzaei
- Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz, 715557-13876, Iran
| | - Mahesh Kumar
- Department of Electrical Engineering, Indian Institute of Technology, Jodhpur, 342030, India; Department of Cybernetics, Nanotechnology and Data Processing, Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Akademicka 16, 44-100, Gliwice, Poland
| | - Hyoun Woo Kim
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, South Korea.
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Zieliński G, Pająk-Zielińska B, Ginszt M. A Meta-Analysis of the Global Prevalence of Temporomandibular Disorders. J Clin Med 2024; 13:1365. [PMID: 38592227 PMCID: PMC10931584 DOI: 10.3390/jcm13051365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 04/10/2024] Open
Abstract
Background: This meta-analysis aims to evaluate the proportion of people with TMDs in different studies, considering factors such as geographical region, patient age, and sample size. Methods: The search yielded 6984 articles on the incidence of TMDs. Finally, 74 studies with 172,239 subjects and 35,259 with TMDs were selected for final analysis. Analyses were performed using the R statistical language. Results: The incidence of TMDs in the world population was 34%. The age group 18-60 years is the most exposed to TMDs. From the data presented, we observed that for each continent, the female group was 9% to 56% larger than the male group. The highest female-to-male ratio (F:M) was reported in South America (1.56), whereas the lowest F:M ratio was reported in Europe (1.09), suggesting an almost equal distribution of males and females. Conclusions: This suggests that geographical location may play a role in the results of the studies. The prevalence of TMDs was significantly higher in South America (47%) compared to Asia (33%) and Europe (29%). Larger epidemiological studies of TMDs in African and Australian populations are recommended. In conclusion, both visual and statistical assessments suggest that the results of our meta-analysis are robust and unlikely to be significantly affected by publication bias. This suggests that geographical location may play a role in the prevalence of TMDs.
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Affiliation(s)
- Grzegorz Zieliński
- Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland
| | - Beata Pająk-Zielińska
- Interdisciplinary Scientific Group of Sports Medicine, Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland
| | - Michał Ginszt
- Department of Rehabilitation and Physiotherapy, Medical University of Lublin, 20-093 Lublin, Poland;
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Dorosz T, Mańko A, Ginszt M. Use of Surface Electromyography to Evaluate Effects of Therapeutic Methods on Masticatory Muscle Activity in Patients with Temporomandibular Disorders: A Narrative Review. J Clin Med 2024; 13:920. [PMID: 38337614 PMCID: PMC10856181 DOI: 10.3390/jcm13030920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/01/2024] [Accepted: 02/03/2024] [Indexed: 02/12/2024] Open
Abstract
The presented narrative review aims to present the impact of therapeutic methods on the masticatory muscle activity measured using surface electromyography (sEMG) in patients with temporomandibular disorders (TMDs). Original interventional studies with baseline data for diagnosed TMD groups with full-text articles in English published in scientific journals in the last ten years were included in the evaluation process. The following narrative review considered only clinical, controlled, and randomized studies. Articles that included the following parameters were qualified for this review: adult participants, diagnosis of temporomandibular disorder, the presence of a musculoskeletal dysfunction, no other severe comorbidities, use of therapeutic interventions, and sEMG measurement before and after the intervention. Ten papers were accepted and analyzed for the final evaluation in the presented review. Several studies using surface electromyographic examination prove the effectiveness of various therapies to normalize the bioelectrical activity of the masticatory muscles, either reduction during rest or increase during a functional task in patients diagnosed with temporomandibular disorders. This narrative review shows the influence of manual and physical treatments on electromyographic masticatory muscle activity, including soft tissue mobilization, transcutaneous electrical nerve stimulation, low-level laser therapy, and moist heat therapy. Changes in masticatory muscle activity coincided with changes in TMD-associated pain and range of mandibular mobility.
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Affiliation(s)
| | | | - Michał Ginszt
- Department of Rehabilitation and Physiotherapy, Medical University of Lublin, 20-093 Lublin, Poland
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8
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Tiwari S, Van de Put M, Sorée B, Hinkle C, Vandenberghe WG. Reduction of Magnetic Interaction Due to Clustering in Doped Transition-Metal Dichalcogenides: A Case Study of Mn-, V-, and Fe-Doped WSe 2. ACS Appl Mater Interfaces 2024; 16:4991-4998. [PMID: 38235733 DOI: 10.1021/acsami.3c14114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Using Hubbard-U-corrected density functional theory calculations, lattice Monte Carlo simulations, and spin Monte Carlo simulations, we investigate the impact of dopant clustering on the magnetic properties of WSe2 doped with period four transition metals. We use manganese (Mn) and iron (Fe) as candidate n-type dopants and vanadium (V) as the candidate p-type dopant, substituting the tungsten (W) atom in WSe2. Specifically, we determine the strength of the exchange interaction in Fe-, Mn-, and V-doped WSe2 in the presence of clustering. We show that the clusters of dopants are energetically more stable than discretely doped systems. Further, we show that in the presence of dopant clustering, the magnetic exchange interaction significantly reduces because the magnetic order in clustered WSe2 becomes more itinerant. Finally, we show that the clustering of the dopant atoms has a detrimental effect on the magnetic interaction, and to obtain an optimal Curie temperature, it is important to control the distribution of the dopant atoms.
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Affiliation(s)
- Sabyasachi Tiwari
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 W Campbell Rd., Richardson, Texas 75080, United States
- Imec, Kapeldreef 75, 3001 Heverlee, Belgium
- Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, 3001 Leuven, Belgium
| | - Maarten Van de Put
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 W Campbell Rd., Richardson, Texas 75080, United States
- Imec, Kapeldreef 75, 3001 Heverlee, Belgium
| | - Bart Sorée
- Imec, Kapeldreef 75, 3001 Heverlee, Belgium
- Department of Electrical Engineering, KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium
- Department of Physics, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Christopher Hinkle
- Department of Electrical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - William G Vandenberghe
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 W Campbell Rd., Richardson, Texas 75080, United States
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Aftab S, Li X, Hussain S, Aslam M, Hegazy HH, Abd-Rabboh HSM, Koyyada G, Kim JH. Nanomaterials-Based Field-Effect Transistor for Protein Sensing: New Advances. ACS Sens 2024; 9:9-22. [PMID: 38156963 DOI: 10.1021/acssensors.3c01728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
It is crucial for early stage medical diagnostics to identify disease biomarkers at ultralow concentrations. A wide range of analytes can be identified using low-dimensional materials to build highly sensitive, targeted, label-free, field-effect transistor (FET) biosensors. Two-dimensional (2D) materials are preferable for high-performance biosensing because of their dramatic change in resistivity upon analyte adsorption or biomarker detection, tunable electronic properties, high surface activities, adequate stability, and layer-dependent semiconducting properties. We give a succinct overview of interesting applications for protein sensing with various architectural styles, such as 2D transition metal dichalcogenides (TMDs)-based FETs that include carbon nanotubes (CNTs), graphene (Gr), reduced graphene oxide (rGr), 2D transition-metal carbides (MXene), and Gr/MXene heterostructures. Because it might enable individuals to perform better, this review will be an important contribution to the field of medical science. These achievements demonstrate point-of-care diagnostics' abilities to detect biomarkers at ultrahigh performance levels. A summary of the present opportunities and challenges appears in the conclusion.
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Affiliation(s)
- Sikandar Aftab
- Department of Intelligent Mechatronics Engineering, Sejong University, Seoul 05006, South Korea
| | - Xin Li
- State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, Anhui China
- Anhui Laboratory of Advanced Laser Technology, Hefei 230037, Anhui, China
| | - Sajjad Hussain
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, South Korea
| | - Muhammad Aslam
- Institute of Physics and Technology, Ural Federal University, Mira Str.19, 620002 Yekaterinburg, Russia
| | - Hosameldin Helmy Hegazy
- Physics Department, Faculty of Science, King Khalid University, Abha 61421, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Hisham S M Abd-Rabboh
- Chemistry Department, Faculty of Science, King Khalid University, PO Box 9004, Abha 61413, Saudi Arabia
| | - Ganesh Koyyada
- School of Chemical Engineering, Yeungnam University, Daehak-ro 280, Gyeongsan, Gyeongbuk 38541, South Korea
| | - Jae Hong Kim
- School of Chemical Engineering, Yeungnam University, Daehak-ro 280, Gyeongsan, Gyeongbuk 38541, South Korea
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Song J, Sun M. Modulating Thermoelectric Properties of the MoSe 2/WSe 2 Superlattice Heterostructure by Twist Angles. ACS Appl Mater Interfaces 2024; 16:3325-3333. [PMID: 38190725 DOI: 10.1021/acsami.3c15160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
In the current era of limited resources, the matter of energy conversion holds significant importance. Thermoelectric materials possess the ability to transform thermal energy into electric power. Achieving an impressive thermoelectric figure of merit (ZT) necessitates the presence of a high power factor alongside low thermal conductivity. Stimulated by recent experimental reports on the in-plane lateral MoSe2/WSe2 heterostructure in the application thermoelectric device [Zhang Y. et al., Simultaneous electrical and thermal rectification in a monolayer lateral heterojunction. Science 2022, 378, 169], in this study, the method of twisting angle is used to modulate the energy bands of van der Waals MoSe2/WSe2 superlattice heterostructures to optimize the carrier concentration, band gap, electric conductance, thermal conductivity, and ZT of the heterostructure. The 21.79° twisted heterostructures among different twisting-angle heterostructures benefit from both the high power factor and low thermal conductivity, ultimately leading to significantly improved ZT compared to the untwisted counterpart.
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Affiliation(s)
- Jizhe Song
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mengtao Sun
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Galvani M, Freddi S, Sangaletti L. Disclosing Fast Detection Opportunities with Nanostructured Chemiresistor Gas Sensors Based on Metal Oxides, Carbon, and Transition Metal Dichalcogenides. Sensors (Basel) 2024; 24:584. [PMID: 38257677 DOI: 10.3390/s24020584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024]
Abstract
With the emergence of novel sensing materials and the increasing opportunities to address safety and life quality priorities of our society, gas sensing is experiencing an outstanding growth. Among the characteristics required to assess performances, the overall speed of response and recovery is adding to the well-established stability, selectivity, and sensitivity features. In this review, we focus on fast detection with chemiresistor gas sensors, focusing on both response time and recovery time that characterize their dynamical response. We consider three classes of sensing materials operating in a chemiresistor architecture, exposed to the most investigated pollutants, such as NH3, NO2, H2S, H2, ethanol, and acetone. Among sensing materials, we first selected nanostructured metal oxides, which are by far the most used chemiresistors and can provide a solid ground for performance improvement. Then, we selected nanostructured carbon sensing layers (carbon nanotubes, graphene, and reduced graphene), which represent a promising class of materials that can operate at room temperature and offer many possibilities to increase their sensitivities via functionalization, decoration, or blending with other nanostructured materials. Finally, transition metal dichalcogenides are presented as an emerging class of chemiresistive layers that bring what has been learned from graphene into a quite large portfolio of chemo-sensing platforms. For each class, studies since 2019 reporting on chemiresistors that display less than 10 s either in the response or in the recovery time are listed. We show that for many sensing layers, the sum of both response and recovery times is already below 10 s, making them promising devices for fast measurements to detect, e.g., sudden bursts of dangerous emissions in the environment, or to track the integrity of packaging during food processing on conveyor belts at pace with industrial production timescales.
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Affiliation(s)
- Michele Galvani
- Surface Science and Spectroscopy Lab at I-Lamp, Department of Mathematics and Physics, Via della Garzetta 48, 25133 Brescia, Italy
| | - Sonia Freddi
- Surface Science and Spectroscopy Lab at I-Lamp, Department of Mathematics and Physics, Via della Garzetta 48, 25133 Brescia, Italy
- Institute of Photonics and Nanotechnologies-Consiglio Nazionale delle Ricerche (IFN-CNR), Laboratory for Nanostructure Epitaxy and Spintronics on Silicon (LNESS), Via Anzani 42, 22100 Como, Italy
| | - Luigi Sangaletti
- Surface Science and Spectroscopy Lab at I-Lamp, Department of Mathematics and Physics, Via della Garzetta 48, 25133 Brescia, Italy
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12
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Di Matteo P, Petrucci R, Curulli A. Not Only Graphene Two-Dimensional Nanomaterials: Recent Trends in Electrochemical (Bio)sensing Area for Biomedical and Healthcare Applications. Molecules 2023; 29:172. [PMID: 38202755 PMCID: PMC10780376 DOI: 10.3390/molecules29010172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Two-dimensional (2D) nanomaterials (e.g., graphene) have attracted growing attention in the (bio)sensing area and, in particular, for biomedical applications because of their unique mechanical and physicochemical properties, such as their high thermal and electrical conductivity, biocompatibility, and large surface area. Graphene (G) and its derivatives represent the most common 2D nanomaterials applied to electrochemical (bio)sensors for healthcare applications. This review will pay particular attention to other 2D nanomaterials, such as transition metal dichalcogenides (TMDs), metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and MXenes, applied to the electrochemical biomedical (bio)sensing area, considering the literature of the last five years (2018-2022). An overview of 2D nanostructures focusing on the synthetic approach, the integration with electrodic materials, including other nanomaterials, and with different biorecognition elements such as antibodies, nucleic acids, enzymes, and aptamers, will be provided. Next, significant examples of applications in the clinical field will be reported and discussed together with the role of nanomaterials, the type of (bio)sensor, and the adopted electrochemical technique. Finally, challenges related to future developments of these nanomaterials to design portable sensing systems will be shortly discussed.
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Affiliation(s)
- Paola Di Matteo
- Dipartimento Scienze di Base e Applicate per l’Ingegneria, Sapienza University of Rome, 00161 Rome, Italy; (P.D.M.); (R.P.)
| | - Rita Petrucci
- Dipartimento Scienze di Base e Applicate per l’Ingegneria, Sapienza University of Rome, 00161 Rome, Italy; (P.D.M.); (R.P.)
| | - Antonella Curulli
- Consiglio Nazionale delle Ricerche (CNR), Istituto per lo Studio dei Materiali Nanostrutturati (ISMN), 00161 Rome, Italy
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Xu C, Ding Y, Wang S, Cao S. The van der Waals interaction and absorption and electron circular dichroism spectra of two-dimensional bilayer stacked structures. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123182. [PMID: 37517268 DOI: 10.1016/j.saa.2023.123182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 07/07/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023]
Abstract
van der Waals (vdW) heterojunctions based on two-dimensional (2D) materials, graphene and transition metal dichalcogenides (TMDs), are a research hotspot for future optoelectronic and exciton devices. Bond-free vdW interactions are key to 2D material heterojunction device reliability and stability. However, most of the current research on 2D stacked materials heterostructures mainly focuses on optical properties and electronic structure. Furthermore, vdW interaction in 2D heterostructures is studied and understood on the basis of qualitative description and energy ranges from the literature. There are few studies on the nature of vdW interaction based on practical calculations of the quantitative strength and microscopic mechanism of vdW interaction between 2D stacked materials. Therefore, this paper explores the vdW interaction between 2D material stacked bilayer structures, including bilayer graphene, graphene/MoS2 and graphene/WS2 heterostructures, focusing on quantitative analysis of the energy components of the vdW interaction. We first visually observed the weak interactions in the three stacked bilayer structures through noncovalent interaction (NCI) analysis, and found that the interactions are concentrated in the binding region between the two-layer structures. We mainly decomposed the weak interaction energy in the three 2D material bilayer heterostructures through energy decomposition analysis based on the force field (EDA-FF) method and obtained the energy values and proportions of the three components-electrostatic energy, exchange repulsion energy and dispersion energy of the total binding energy between the 2D stacked bilayer structures. The vdW interaction energy is the sum of the exchange repulsion energy and dispersion energy, and the dispersion energy of the vdW interaction accounts for more than 60% of the binding energy of the weak interaction between the 2D bilayer stacked structures. The vdW strengths in the bilayer structures are on the order of 177.07, 123.85, and 133.93 kJ/mol, approxmately 1-2 orders of magnitude larger than the classically defined vdW energies of 0.1-10 kJ/mol. Furthermore, we calculate the density of states of the three 2D stacked structures, and further obtained HOMO-LOMO information; to further understand the electronic structures of the graphene/MoS2 and graphene/WS2 heterostructures, we calculated their optical absorption spectra and electron circular dichroism (ECD) spectra. According to the calculation results, the two heterostructures have strong absorption peaks in the visible region, and the charge transfer forms at the strong absorption peak can be determined according to the charge transfer diagram. The ECD spectra indicate that the configurations of the graphene/MoS2 and graphene/WS2 heterostructures have large chirality. Our work contributes to a deeper understanding of the nature of the weak interactions and optical properties in 2D stacked materials, which plays a fundamental role in promoting the construction of stable 2D heterostructure configurations and the development of multifunctional 2D devices. The research is conducive to further promoting the basic research and practical development of strong optoelectronic and excitonic 2D heterojunctions devices.
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Affiliation(s)
- Changcheng Xu
- School of Physics, Liaoning University, Shenyang 110036, PR China
| | - Yong Ding
- School of Physics, Liaoning University, Shenyang 110036, PR China
| | - Shaofeng Wang
- School of Physics, Liaoning University, Shenyang 110036, PR China
| | - Shuo Cao
- School of Physics, Liaoning University, Shenyang 110036, PR China.
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14
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Wang H, Cui Z, Xiong R, Wang X, Song W, Guo X, Wu X, Sa B, Zeng D. Synergism of Edge Effect and Interlayer Engineering of VS 2 on CNFs for Rapid and Precise NO 2 Detection. ACS Sens 2023; 8:3923-3932. [PMID: 37823841 DOI: 10.1021/acssensors.3c01526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Although two-dimensional (2D) transition-metal dichalcogenides (TMDs) exhibit attractive prospects for gas-sensing applications, the rapid and precise sensing of TMDs at low loss remains challenging. Herein, a NO2 sensor based on an expanded VS2 (VS2-E)/carbon nanofibers (CNFs) composite (abbreviated as VS2-E-C) with ultrafast response/recovery at a low-loss state is reported. In particular, the impact of the CNF content on the NO2-sensing performance of VS2-E-C was thoroughly explored. Expanded VS2 nanosheets were grafted onto the surface of hollow CNFs, and the combination boosted the charge transport, exposing abundant active edges of VS2, which enhanced the adsorption of NO2 efficiently. The activity of the VS2 edge is further confirmed by stronger NO2 adsorption with a more negative adsorption energy (-3.42 eV) and greater than the basal VS2 surface (-1.26 eV). Moreover, the exposure of rich edges induced the emergence of the expanded interlayers, which promoted the adsorption/desorption of NO2 and the interaction of gas molecules within VS2-E-C. The synergism of edge effect and interlayer engineering confers the VS2-E-C3 sensor with ultrafast response/recovery speed (9/10 s) at 60 °C, high sensitivity (∼2.50 to 15 ppm NO2), good selectivity/stability, and a low detection limit of 23 ppb. The excellent "4S" functions indicate the promising prospect of the VS2-E-C3 sensor for fast and precise NO2 detection at low-loss condition.
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Affiliation(s)
- Huajing Wang
- State Key Laboratory of Materials Processing and Die Mould Technology, Huazhong University of Science and Technology (HUST), No. 1037, Luoyu Road, Wuhan 430074, P. R. China
| | - Zhou Cui
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Rui Xiong
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Xiaoxia Wang
- State Key Laboratory of Materials Processing and Die Mould Technology, Huazhong University of Science and Technology (HUST), No. 1037, Luoyu Road, Wuhan 430074, P. R. China
| | - Wulin Song
- State Key Laboratory of Materials Processing and Die Mould Technology, Huazhong University of Science and Technology (HUST), No. 1037, Luoyu Road, Wuhan 430074, P. R. China
| | - Xiang Guo
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemistry Technology, Xiangyang 441003, P. R. China
| | - Xiao Wu
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Baisheng Sa
- Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Dawen Zeng
- State Key Laboratory of Materials Processing and Die Mould Technology, Huazhong University of Science and Technology (HUST), No. 1037, Luoyu Road, Wuhan 430074, P. R. China
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15
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Uzunoglu A, Gunes Altuntas E, Huseyin Ipekci H, Ozoglu O. Two-Dimensional (2D) materials in the detection of SARS-CoV-2. Microchem J 2023; 193:108970. [PMID: 37342763 PMCID: PMC10265934 DOI: 10.1016/j.microc.2023.108970] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/10/2023] [Accepted: 06/10/2023] [Indexed: 06/23/2023]
Abstract
The SARS-CoV-2 pandemic has resulted in a devastating effect on human health in the last three years. While tremendous effort has been devoted to the development of effective treatment and vaccines against SARS-CoV-2 and controlling the spread of it, collective health challenges have been encountered along with the concurrent serious economic impacts. Since the beginning of the pandemic, various detection methods like PCR-based methods, isothermal nucleic acid amplification-based (INAA) methods, serological methods or antibody tests, and evaluation of X-ray chest results have been exploited to diagnose SARS-CoV-2. PCR-based detection methods in these are considered gold standards in the current stage despite their drawbacks, including being high-cost and time-consuming procedures. Furthermore, the results obtained from the PCR tests are susceptible to sample collection methods and time. When the sample is not collected properly, obtaining a false result may be likely. The use of specialized lab equipment and the need for trained people for the experiments pose additional challenges in PCR-based testing methods. Also, similar problems are observed in other molecular and serological methods. Therefore, biosensor technologies are becoming advantageous with their quick response, high specificity and precision, and low-cost characteristics for SARS-CoV-2 detection. In this paper, we critically review the advances in the development of sensors for the detection of SARS-CoV-2 using two-dimensional (2D) materials. Since 2D materials including graphene and graphene-related materials, transition metal carbides, carbonitrides, and nitrides (MXenes), and transition metal dichalcogenides (TMDs) play key roles in the development of novel and high-performance electrochemical (bio)sensors, this review pushes the sensor technologies against SARS-CoV-2 detection forward and highlights the current trends. First, the basics of SARS-CoV-2 detection are described. Then the structure and the physicochemical properties of the 2D materials are explained, which is followed by the development of SARS-CoV-2 sensors by exploiting the exceptional properties of the 2D materials. This critical review covers most of the published papers in detail from the beginning of the outbreak.
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Affiliation(s)
- Aytekin Uzunoglu
- Faculty of Engineering, Metallurgical & Materials Engineering, Necmettin Erbakan University, Konya 42090, Turkey
| | - Evrim Gunes Altuntas
- Ankara University, Biotechnology Institute, Gumusdere Campus, 06135, Ankara, Turkey
| | - Hasan Huseyin Ipekci
- Faculty of Engineering, Metallurgical & Materials Engineering, Necmettin Erbakan University, Konya 42090, Turkey
| | - Ozum Ozoglu
- Department of Food Engineering, Faculty of Agriculture, Bursa Uludag University, 16059 Bursa, Turkey
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16
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Montemurro N, Trilli I, Bordea IR, Ferrara E, Francesco MD, Caccamo F, Malcangi G, Rapone B. Are Whiplash-Associated Disorders and Temporomandibular Disorders in a Trauma Related Cause and Effect Relationship? A Review. Medicina (Kaunas) 2023; 59:1482. [PMID: 37629772 PMCID: PMC10456620 DOI: 10.3390/medicina59081482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
Background: Whiplash is associated with a wide variety of clinical manifestations, including headache, neck pain, cervical rigidity, shoulder and back pain, paresthesia, vertigo, and temporomandibular disorders (TMDs). Previous studies reported that TMDs are more common in individuals with chronic whiplash-associated disorders (WAD) than in the general population; however, the pathophysiology and mechanism of this relationship are still not well understood. Methods: A PubMed and Ovid EMBASE review was performed to identify all studies addressing the trauma related cause and effect relationship between WAD and TMDs from January 2003 to March 2023. Results: After screening for eligibility and inclusion criteria, a total of 16 articles met the selection criteria. The various included studies discussed different aspects of the association between WDA and TMDs, including changes in the coordination and amplitude of jaw opening, the severity of the associated symptoms/signs in cases of WAD, the degree of fatigue and psychological stress, difficulty in feeding, cervical and myofascial pain, changes in the MRI signal at various muscle points, muscle tenderness, and quality of life. Conclusions: In this review, we summarized the clinical evidence of any trauma related cause and effect relationship between whiplash and TMDs. An accurate screening of the previous literature showed that, in conclusion, the relationship between whiplash and TMDs is still unclear.
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Affiliation(s)
- Nicola Montemurro
- Department of Neurosurgery, Azienda Ospedaliero Universitaria Pisana (AOUP), University of Pisa, 56100 Pisa, Italy;
| | - Irma Trilli
- Interdisciplinary Department of Medicine, “Aldo Moro” University of Bari, 70121 Bari, Italy; (I.T.); (G.M.); (B.R.)
| | - Ioana Roxana Bordea
- Department of Oral Rehabilitation, Faculty of Dental Medicine, University of Medicine and Pharmacy ‘Iuliu Hatieganu’, 400012 Cluj-Napoca, Romania
| | - Elisabetta Ferrara
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio, 66100 Chieti, Italy;
| | - Maurizio De Francesco
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padua, 35128 Padua, Italy;
| | | | - Giuseppina Malcangi
- Interdisciplinary Department of Medicine, “Aldo Moro” University of Bari, 70121 Bari, Italy; (I.T.); (G.M.); (B.R.)
| | - Biagio Rapone
- Interdisciplinary Department of Medicine, “Aldo Moro” University of Bari, 70121 Bari, Italy; (I.T.); (G.M.); (B.R.)
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17
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Rodriguez-Fernandez C, Nieminen A, Ahmed F, Pietila J, Lipsanen H, Caglayan H. Unraveling Thermal Transport Properties of MoTe 2 Thin Films Using the Optothermal Raman Technique. ACS Appl Mater Interfaces 2023. [PMID: 37435778 PMCID: PMC10375478 DOI: 10.1021/acsami.3c06134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Understanding phonon transport and thermal conductivity of layered materials is not only critical for thermal management and thermoelectric energy conversion but also essential for developing future optoelectronic devices. Optothermal Raman characterization has been a key method to identify the properties of layered materials, especially transition-metal dichalcogenides. This work investigates the thermal properties of suspended and supported MoTe2 thin films using the optothermal Raman technique. We also report the investigation of the interfacial thermal conductance between the MoTe2 crystal and the silicon substrate. To extract the thermal conductivity of the samples, temperature- and power-dependent measurements of the in-plane E2g1 and out-of-plane A1g optical phonon modes were performed. The results show remarkably low in-plane thermal conductivities at room temperature, at around 5.16 ± 0.24 W/m·K and 3.72 ± 0.26 W/m·K for the E2g1 and the A1g modes, respectively, for the 17 nm thick sample. These results provide valuable input for the design of electronic and thermal MoTe2-based devices where thermal management is vital.
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Affiliation(s)
| | - Arttu Nieminen
- Faculty of Engineering and Natural Sciences, Photonics, Tampere University, 33720 Tampere, Finland
| | - Faisal Ahmed
- Department of Electronics and Nanoengineering, Aalto University, P.O. Box 13500, FI-00076 Aalto, Finland
| | - Jesse Pietila
- Faculty of Engineering and Natural Sciences, Photonics, Tampere University, 33720 Tampere, Finland
| | - Harri Lipsanen
- Department of Electronics and Nanoengineering, Aalto University, P.O. Box 13500, FI-00076 Aalto, Finland
| | - Humeyra Caglayan
- Faculty of Engineering and Natural Sciences, Photonics, Tampere University, 33720 Tampere, Finland
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18
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Li C, Yang Q, Zu Y, Din SZU, Yue Y, Zhai R, Jia Z. SnS 2 as a Saturable Absorber for Mid-Infrared Q-Switched Er:SrF 2 Laser. Nanomaterials (Basel) 2023; 13:1989. [PMID: 37446504 DOI: 10.3390/nano13131989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/29/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023]
Abstract
Two-dimensional (2D) materials own unique band structures and excellent optoelectronic properties and have attracted wide attention in photonics. Tin disulfide (SnS2), a member of group IV-VI transition metal dichalcogenides (TMDs), possesses good environmental optimization, oxidation resistance, and thermal stability, making it more competitive in application. By using the intensity-dependent transmission experiment, the saturable absorption properties of the SnS2 nanosheet nearly at 3 μm waveband were characterized by a high modulation depth of 32.26%. Therefore, a few-layer SnS2 was used as a saturable absorber (SA) for a bulk Er:SrF2 laser to research its optical properties. When the average output power was 140 mW, the passively Q-switched laser achieved the shortest pulse width at 480 ns, the optimal single pulse energy at 3.78 µJ, and the highest peak power at 7.88 W. The results of the passively Q-switched laser revealed that few-layer SnS2 had an admirable non-linear optical response at near 3 μm mid-infrared solid-state laser.
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Affiliation(s)
- Chun Li
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Qi Yang
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yuqian Zu
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Syed Zaheer Ud Din
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yu Yue
- School of Science, Shandong Jianzhu University, Jinan 250101, China
| | - Ruizhan Zhai
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhongqing Jia
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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19
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Dey S, Singh G. Sodium and potassium ion storage in cation substituted 2D MoWSe2: Insights into the effects of upper voltage cut-off. Nanotechnology 2023. [PMID: 37336199 DOI: 10.1088/1361-6528/acdf66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
The superior properties, such as large interlayer spacing and the ability to host large alkali-metal ions, of two-dimensional (2D) materials based on transition metal di-chalcogenides (TMDs) enable next-generation battery development beyond lithium-ion rechargeable batteries. In addition, compelling but rarely inspected TMD alloys provide additional opportunities to tailor bandgap and enhance thermodynamic stability. This study explores the sodium-ion (Na-ion) and potassium-ion (K-ion) storage behavior of cation-substituted molybdenum tungsten diselenide (MoWSe2), a TMD alloy. This research also investigates upper potential suspension to overcome obstacles commonly associated with TMD materials, such as capacity fading at high current rates, prolonged cycling conditions, and voltage polarization during conversion reaction. The voltage cut-off was restricted to 1.5 V, 2.0 V, and 2.5 V to realize the material's Na+ and K+ ion storage behavior. Three-dimensional (3D) surface plots of differential capacity analysis up to prolonged cycles revealed the convenience of voltage suspension as a viable method for structural preservation. Moreover, the cells with higher potential cut-off values conveyed improved cycling stability, higher and stable coulombic efficiency for Na+ and K+ ion half-cells, and increased capacity retention for Na+ ion half-cells, respectively, with half-cells cycled at higher voltage ranges.
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Affiliation(s)
- Sonjoy Dey
- Mechanical Engineering, Kansas State University, 3002 Rathbone Hall, 1701b Platt St., Manhattan, Kansas, 66506-0100, UNITED STATES
| | - Gurpreet Singh
- Alan Levin Department of Mechanical and Nuclear Engineering, Kansas State University, 1701b Platt St, 3002 Rathbone Hall, Manhattan, Kansas, 66506, UNITED STATES
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20
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Badiee SA, Isu UH, Khodadadi E, Moradi M. The Alternating Access Mechanism in Mammalian Multidrug Resistance Transporters and Their Bacterial Homologs. Membranes (Basel) 2023; 13:568. [PMID: 37367772 DOI: 10.3390/membranes13060568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/28/2023]
Abstract
Multidrug resistance (MDR) proteins belonging to the ATP-Binding Cassette (ABC) transporter group play a crucial role in the export of cytotoxic drugs across cell membranes. These proteins are particularly fascinating due to their ability to confer drug resistance, which subsequently leads to the failure of therapeutic interventions and hinders successful treatments. One key mechanism by which multidrug resistance (MDR) proteins carry out their transport function is through alternating access. This mechanism involves intricate conformational changes that enable the binding and transport of substrates across cellular membranes. In this extensive review, we provide an overview of ABC transporters, including their classifications and structural similarities. We focus specifically on well-known mammalian multidrug resistance proteins such as MRP1 and Pgp (MDR1), as well as bacterial counterparts such as Sav1866 and lipid flippase MsbA. By exploring the structural and functional features of these MDR proteins, we shed light on the roles of their nucleotide-binding domains (NBDs) and transmembrane domains (TMDs) in the transport process. Notably, while the structures of NBDs in prokaryotic ABC proteins, such as Sav1866, MsbA, and mammalian Pgp, are identical, MRP1 exhibits distinct characteristics in its NBDs. Our review also emphasizes the importance of two ATP molecules for the formation of an interface between the two binding sites of NBD domains across all these transporters. ATP hydrolysis occurs following substrate transport and is vital for recycling the transporters in subsequent cycles of substrate transportation. Specifically, among the studied transporters, only NBD2 in MRP1 possesses the ability to hydrolyze ATP, while both NBDs of Pgp, Sav1866, and MsbA are capable of carrying out this reaction. Furthermore, we highlight recent advancements in the study of MDR proteins and the alternating access mechanism. We discuss the experimental and computational approaches utilized to investigate the structure and dynamics of MDR proteins, providing valuable insights into their conformational changes and substrate transport. This review not only contributes to an enhanced understanding of multidrug resistance proteins but also holds immense potential for guiding future research and facilitating the development of effective strategies to overcome multidrug resistance, thus improving therapeutic interventions.
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Affiliation(s)
- Shadi A Badiee
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ugochi H Isu
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
| | - Ehsaneh Khodadadi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
| | - Mahmoud Moradi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
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21
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Ghimire G, Ulaganathan RK, Tempez A, Ilchenko O, Unocic RR, Heske J, Miakota DI, Xiang C, Chaigneau M, Booth T, Bøggild P, Thygesen KS, Geohegan DB, Canulescu S. Molybdenum Disulfide Nanoribbons with Enhanced Edge Nonlinear Response and Photoresponsivity. Adv Mater 2023:e2302469. [PMID: 37246801 DOI: 10.1002/adma.202302469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/04/2023] [Indexed: 05/30/2023]
Abstract
MoS2 nanoribbons have attracted an increased interest due to their properties, which can be tailored by tuning their dimensions. Herein, we demonstrate the growth of MoS2 nanoribbons and 3D triangular crystals formed by the reaction between ultra-thin films of MoO3 grown by Pulsed Laser Deposition and NaF in a sulfur-rich environment. The multilayer nanoribbons can reach up to 10 μm in length, and feature single-layer edges, forming a monolayer-multilayer MoS2 junction enabled by the lateral modulation in thickness. The single-layer edges of the nanoribbons show a pronounced second harmonic generation due to the symmetry breaking, in contrast to the centrosymmetric multilayer structure, which is unsusceptible to the second-order nonlinear process. A pronounced splitting of the Raman spectra was observed in MoS2 nanoribbons arising from distinct contributions from the monolayer edges and multilayer core. Nanoscale imaging reveals a blue-shifted exciton emission of the monolayer edge compared to the triangular MoS2 monolayers due to built-in local strain and disorder. We further report on an ultrasensitive photodetector made of a single MoS2 nanoribbon with a responsivity of 8.72×102 A/W at 532 nm, among the highest reported up-to-date for single-nanoribbon photodetectors. Our findings can inspire the design of MoS2 semiconductors with tunable geometries for efficient optoelectronic devices. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ganesh Ghimire
- Department of Electrical and Photonics Engineering, Technical University of Denmark, Roskilde, 4000, Denmark
| | - Rajesh Kumar Ulaganathan
- Department of Electrical and Photonics Engineering, Technical University of Denmark, Roskilde, 4000, Denmark
| | | | - Oleksii Ilchenko
- Department of Health Technology Nanoprobes, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | - Raymond R Unocic
- Center for Nanophase Materials Sciences and Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37830, United States
| | - Julian Heske
- Department of Physics, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | - Denys I Miakota
- Department of Electrical and Photonics Engineering, Technical University of Denmark, Roskilde, 4000, Denmark
| | - Cheng Xiang
- Department of Physics, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | | | - Tim Booth
- Department of Physics, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | - Peter Bøggild
- Department of Physics, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | - Kristian S Thygesen
- Department of Physics, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
| | - David B Geohegan
- Center for Nanophase Materials Sciences and Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37830, United States
| | - Stela Canulescu
- Department of Electrical and Photonics Engineering, Technical University of Denmark, Roskilde, 4000, Denmark
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22
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Buß L, Braud N, Ewert M, Jugovac M, Menteş TO, Locatelli A, Falta J, Flege JI. Unraveling van der Waals epitaxy: A real-time in-situ study of MoSe2 growth on graphene/Ru(0001). Ultramicroscopy 2023; 250:113749. [PMID: 37186986 DOI: 10.1016/j.ultramic.2023.113749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/31/2023] [Accepted: 05/04/2023] [Indexed: 05/17/2023]
Abstract
In the present work we investigate the growth of monolayer MoSe2 on selenium-intercalated graphene on Ru(0001), a model layered heterostructure combining a transition metal dichalcogenide with graphene, using low energy electron microscopy and micro-diffraction. Real-time observation of MoSe2 on graphene growth reveals the island nucleation dynamics at the nanoscale. Upon annealing, larger islands are formed by sliding and attachment of multiple nanometer-sized MoSe2 flakes. Local micro-spot angle-resolved photoemission spectroscopy reveals the electronic structure of the heterostructure, indicating that no charge transfer occurs within adjacent layers. The observed behavior is attributed to intercalation of Se at the graphene/Ru(0001) interface. The unperturbed nature of the proposed heterostructure therefore renders it as a model system for investigations of graphene supported TMD nanostructures.
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Affiliation(s)
- Lars Buß
- Applied Physics and Semiconductor Spectroscopy, Brandenburg University of Technology Cottbus-Senftenberg, Konrad-Zuse-Straße 1, Cottbus 03046, Germany.
| | - Nicolas Braud
- Institute of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, Bremen 28359, Germany
| | - Moritz Ewert
- Applied Physics and Semiconductor Spectroscopy, Brandenburg University of Technology Cottbus-Senftenberg, Konrad-Zuse-Straße 1, Cottbus 03046, Germany
| | - Matteo Jugovac
- Elettra-Sincrotrone Trieste S.C.p.A, S.S. 14km 163.5 in AREA Science Park, Trieste, Italy
| | - Tevfik Onur Menteş
- Elettra-Sincrotrone Trieste S.C.p.A, S.S. 14km 163.5 in AREA Science Park, Trieste, Italy
| | - Andrea Locatelli
- Elettra-Sincrotrone Trieste S.C.p.A, S.S. 14km 163.5 in AREA Science Park, Trieste, Italy
| | - Jens Falta
- Institute of Solid State Physics, University of Bremen, Otto-Hahn-Allee 1, Bremen 28359, Germany; MAPEX Center for Materials and Processes, P.O. Box 303 440, 28334, Bremen, Germany
| | - Jan Ingo Flege
- Applied Physics and Semiconductor Spectroscopy, Brandenburg University of Technology Cottbus-Senftenberg, Konrad-Zuse-Straße 1, Cottbus 03046, Germany
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Szarejko KD, Gołębiewska M, Lukomska-Szymanska M, Kuć J. Stress Experience, Depression and Neck Disability in Patients with Temporomandibular Disorder-Myofascial Pain with Referral. J Clin Med 2023; 12:jcm12051988. [PMID: 36902775 PMCID: PMC10004681 DOI: 10.3390/jcm12051988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
The etiology of temporomandibular disorders (TMDs) is firmly anchored in the biopsychosocial model in which a special role is attributed to the stress, depression, somatic symptoms, and anxiety. The aim of the study was to assess the level of stress, depression and neck disability in patients with temporomandibular disorder-myofascial pain with referral. The study group enrolled 50 people (37 women and 13 men) with complete natural dentition. All the patients underwent a clinical examination according to the Diagnostic Criteria for Temporomandibular Disorders and were diagnosed as individuals with myofascial pain with referral. The questionnaires were associated with stress, depression, and neck disability; Perceived Stress Scale (PSS-10), Beck Depression Inventory(BDI), and Neck Disability Index (NDI) were evaluated. Of the individuals evaluated, 78% showed elevated levels of stress, and the average value of the PSS-10 in the study group was 18 points (Me = 17). Furthermore, 30% of the subjects presented depressive symptoms, with the average value of BDI was 8.94 points (Me = 8), and 82% of the subjects showed neck disability. The multiple linear regression model revealed that BDI and NDI allowed explanations for the 53% differentiation of PSS-10. In conclusion, stress, depression, and neck disability coexist with temporomandibular disorder-myofascial pain with referral.
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Affiliation(s)
- Krzysztof Dariusz Szarejko
- Private Health Care, Physical Therapy and Rehabilitation, Bialystok, 79 Warsaw St., 15-201 Bialystok, Poland
| | - Maria Gołębiewska
- Department of Dental Techniques, Medical University of Bialystok, 13 Washington St., 15-269 Bialystok, Poland
| | | | - Joanna Kuć
- Department of Prosthodontics, Medical University of Bialystok, 24A M. Sklodowskiej-Curie St., 15-276 Bialystok, Poland
- Correspondence:
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24
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Arya M, Sharma S, Gupta A, Bansal P, Arya A, Gupta H, Sehrawat D. Incidence and Clinical Presentation of Temporo-Mandibular Joint Disorders and their Association with Psychological Distress and Para-Functional Habits in a Non-Patient Population. J Maxillofac Oral Surg 2023; 22:102-109. [PMID: 36703671 PMCID: PMC9871114 DOI: 10.1007/s12663-022-01754-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 06/05/2022] [Indexed: 01/29/2023] Open
Abstract
Purpose The study aims at finding the incidence of temporo-mandibular joint disorders (TMDs) in a non-patient population and relates their association with psychological distress and parafunctional habits. Materials and Methods A DC/TMD questionnaire and DASS-21 scale survey were completed by selected participants followed by clinical examination of TMDs symptoms in sample population. Results A study sample of 855 participants revealed 36.65% population with various TMDs symptoms, while 63.5% population had no TMDs symptoms. 50.8% study participants were men, and 49.2% were women. Of all affected population, 16.2% had pain-related TMDs, 12.39% had intra-articular TMDs symptoms, and 8.07% had TMJ pain associated with pain or dysfunction. For all TMDs symptoms groups, the strongest correlations were for depression, while no significant associations were observed with parafunctional habits in all groups. Conclusions Overall psychological distress and anxiety increased the prospects of TMDs symptoms. Clinical factors like muscle tenderness, crossbite and deep vertical overlap seem to be significant etiological factors, while angle molar relationship and parafunctional habits do not seem to be significant etiologic factors in TMDs.
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Affiliation(s)
- Mridul Arya
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
| | - Sneha Sharma
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
| | - Ashish Gupta
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
| | - Pankaj Bansal
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
| | - Anil Arya
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
| | - Himani Gupta
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
| | - Dimple Sehrawat
- Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana India
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25
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Sukhanova EV, Sagatov NE, Oreshonkov AS, Gavryushkin PN, Popov ZI. Halogen-Doped Chevrel Phase Janus Monolayers for Photocatalytic Water Splitting. Nanomaterials (Basel) 2023; 13:368. [PMID: 36678120 PMCID: PMC9860981 DOI: 10.3390/nano13020368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Chevrel non-van der Waals crystals are promising candidates for the fabrication of novel 2D materials due to their versatile crystal structure formed by covalently bonded (Mo6X8) clusters (X-chalcogen atom). Here, we present a comprehensive theoretical study of the stability and properties of Mo-based Janus 2D structures with Chevrel structures consisting of chalcogen and halogen atoms via density functional theory calculations. Based on the analysis performed, we determined that the S2Mo3I2 monolayer is the most promising structure for overall photocatalytic water-splitting application due to its appropriate band alignment and its ability to absorb visible light. The modulated Raman spectra for the representative structures can serve as a blueprint for future experimental verification of the proposed structures.
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Affiliation(s)
- Ekaterina V. Sukhanova
- Laboratory of Acoustic Microscopy, Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
| | - Nursultan E. Sagatov
- Laboratory of Phase Transformations and State Diagrams of the Earth’s Matter at High Pressures, Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Aleksandr S. Oreshonkov
- Laboratory of Acoustic Microscopy, Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
- Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
- School of Engineering and Construction, Siberian Federal University, 660041 Krasnoyarsk, Russia
| | - Pavel N. Gavryushkin
- Laboratory of Acoustic Microscopy, Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
- Laboratory of Phase Transformations and State Diagrams of the Earth’s Matter at High Pressures, Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Geology Geophysics Department, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Zakhar I. Popov
- Laboratory of Acoustic Microscopy, Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia
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26
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Ginszt M, Zieliński G, Szkutnik J, Wójcicki M, Baszczowski M, Litko-Rola M, Zielińska D, Różyło-Kalinowska I. The Difference in Electromyographic Activity While Wearing a Medical Mask in Women with and without Temporomandibular Disorders. Int J Environ Res Public Health 2022; 19:ijerph192315559. [PMID: 36497634 PMCID: PMC9737111 DOI: 10.3390/ijerph192315559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 05/27/2023]
Abstract
Wearing a medical mask influences resting activity of the temporalis anterior and masseter muscles in healthy young women. However, no studies link medical mask-wearing with masticatory muscle activity in patients with temporomandibular disorders (TMDs). Therefore, this study aims to compare electromyographic patterns while wearing a medical mask between women with and without temporomandibular disorders. Based on the Research Diagnostic Criteria for Temporomandibular Disorders, 115 adult women qualified for the study. Participants were divided into the following two groups: diagnosed TMDs (n = 55; mean age: 23.5 ± 2.3 years) and healthy women (n = 60; mean age: 23.7 ± 2.6 years). Examinations of the resting and functional electromyographic activity of the temporalis anterior (TA), superficial masseter (MM), anterior bellies of the digastric muscle (DA), and the middle part of the sternocleidomastoid muscle (SCM) were carried out using the BioEMG III™. Both groups showed statistically significant decreases in resting masticatory muscle activity during medical mask examination compared to no mask measurement. The significant differences in no mask measurement between both groups were noted regarding resting masticatory activity, clenching in the intercuspal position, and clenching on dental cotton rollers. During medical mask examination, women with TMDs showed differences in resting masticatory activity and clenching on dental cotton rollers compared to the healthy group. In all analyzed variables, both groups showed similar electromyographic patterns in the maximum mouth opening measurement during medical mask and no mask examination. A medical mask influences the resting bioelectric activity of the masticatory muscles in women with temporomandibular disorders and healthy women. We observed differences and some similarities in resting and functional electromyographic patterns within masticatory and neck muscles in both groups during medical mask and no mask examination.
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Affiliation(s)
- Michał Ginszt
- Department of Rehabilitation and Physiotherapy, Medical University of Lublin, 20-093 Lublin, Poland
| | - Grzegorz Zieliński
- Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland
| | - Jacek Szkutnik
- Independent Unit of Functional Masticatory Disorders, Medical University of Lublin, 20-093 Lublin, Poland
| | - Marcin Wójcicki
- Independent Unit of Functional Masticatory Disorders, Medical University of Lublin, 20-093 Lublin, Poland
| | - Michał Baszczowski
- Interdisciplinary Scientific Group of Sports Medicine, Department of Sports Medicine, Medical University of Lublin, 20-093 Lublin, Poland
| | - Monika Litko-Rola
- Independent Unit of Functional Masticatory Disorders, Medical University of Lublin, 20-093 Lublin, Poland
| | - Diana Zielińska
- Independent Unit of Functional Masticatory Disorders, Medical University of Lublin, 20-093 Lublin, Poland
| | - Ingrid Różyło-Kalinowska
- Department of Dental and Maxillofacial Radiodiagnostics, Medical University of Lublin, 20-093 Lublin, Poland
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27
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Joy NJ, K RM, Balakrishnan J. A simple and robust machine learning assisted process flow for the layer number identification of TMDs using optical contrast spectroscopy. J Phys Condens Matter 2022; 51:025901. [PMID: 36322998 DOI: 10.1088/1361-648x/ac9f96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Layered transition metal dichalcogenides (TMDs) like tungsten disulphide (WS2) possess a large direct electronic band gap (∼2 eV) in the monolayer limit, making them ideal candidates for opto-electronic applications. The size and nature of the bandgap is strongly dependent on the number of layers. However, different TMDs require different experimental tools under specific conditions to accurately determine the number of layers. Here, we identify the number of layers of WS2exfoliated on top of SiO2/Si wafer from optical images using the variation of optical contrast with thickness. Optical contrast is a universal feature that can be easily extracted from digital images. But fine variations in the optical images due to different capturing conditions often lead to inaccurate layer number determination. In this paper, we have implemented a simple Machine Learning assisted image processing workflow that uses image segmentation to eliminate this difficulty. The workflow developed for WS2is also demonstrated on MoS2, graphene and h-BN, showing its applicability across various classes of 2D materials. A graphical user interface is provided to enhance the adoption of this technique in the 2D materials research community.
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Affiliation(s)
- Nikhil Joseph Joy
- Department of Physics, Indian Institute of Technology Palakkad, Palakkad 678623, Kerala, India
| | - Ranjuna M K
- Department of Physics, Indian Institute of Technology Palakkad, Palakkad 678623, Kerala, India
| | - Jayakumar Balakrishnan
- Department of Physics, Indian Institute of Technology Palakkad, Palakkad 678623, Kerala, India
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28
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Gobato YG, de Brito CS, Chaves A, Prosnikov MA, Woźniak T, Guo S, Barcelos ID, Milošević MV, Withers F, Christianen PCM. Distinctive g-Factor of Moiré-Confined Excitons in van der Waals Heterostructures. Nano Lett 2022; 22:8641-8646. [PMID: 36279205 DOI: 10.1021/acs.nanolett.2c03008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
We investigated the valley Zeeman splitting of excitonic peaks in the microphotoluminescence (μPL) spectra of high-quality hBN/WS2/MoSe2/hBN heterostructures under perpendicular magnetic fields up to 20 T. We identify two neutral exciton peaks in the μPL spectra; the lower-energy peak exhibits a reduced g-factor relative to that of the higher energy peak and much lower than the recently reported values for interlayer excitons in other van der Waals (vdW) heterostructures. We provide evidence that such a discernible g-factor stems from the spatial confinement of the exciton in the potential landscape created by the moiré pattern due to lattice mismatch or interlayer twist in heterobilayers. This renders magneto-μPL an important tool to reach a deeper understanding of the effect of moiré patterns on excitonic confinement in vdW heterostructures.
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Affiliation(s)
- Y Galvão Gobato
- Physics Department, Federal University of São Carlos, São Carlos, São Paulo13565-905, Brazil
| | - C Serati de Brito
- Physics Department, Federal University of São Carlos, São Carlos, São Paulo13565-905, Brazil
| | - A Chaves
- Departamento de Física, Universidade Federal do Ceará, Fortaleza, Ceará60455-760, Brazil
- Department of Physics and NANOlab Center of Excellence, University of Antwerp, 2020Antwerp, Belgium
| | - M A Prosnikov
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 EDNijmegen, The Netherlands
| | - T Woźniak
- Department of Semiconductor Materials Engineering, Wrocław University of Science and Technology, 50-370Wrocław, Poland
| | - Shi Guo
- Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, U.K
| | - Ingrid D Barcelos
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo13083-970, Brazil
| | - M V Milošević
- Department of Physics and NANOlab Center of Excellence, University of Antwerp, 2020Antwerp, Belgium
- Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, Mato Grosso78060-900, Brazil
| | - F Withers
- Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, U.K
| | - P C M Christianen
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 EDNijmegen, The Netherlands
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29
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Liu J, Lu N, Guan J, Hu Y. Laser Shock-Induced Nano-Twist of Transition Metal Dichalcogenides. ACS Appl Mater Interfaces 2022; 14:37213-37221. [PMID: 35925793 DOI: 10.1021/acsami.2c10661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Mechanical strain, such as stretching, compression, bending, and rotation, significantly alters the photonic and electronic properties of 2D materials. The laser shock process, which allows 2D materials to deform at an ultrahigh strain rate, is a promising technology for alleviating the low strain transfer efficiency caused by the low interfacial bonding strength of the layered 2D materials. However, the mechanical strain introduced by shock waves is currently limited to uniaxial compression or bending deformation, and the monotonic strain patterns constrain the strain diversity and performance expansion space of 2D materials. This work proposed a novel strategy for nano-twist manufacturing using laser shock processing, based on partial interfacial decoupling behavior. Apart from the conventional uniaxial strain, we demonstrated experimentally and theoretically that the manufacturing of nano-twist allows the introduction of interlayer tensile and rotational strains in TMDCs. The microstructure and properties of the strained 2D materials were investigated. Furthermore, the dynamic deformation response of WSe2 during the shock process was studied using molecular dynamics simulations. The correlation between the laser shock-induced dynamic loading process, interfacial behavior, and deformation behavior of 2D materials was comprehensively explored. The primary contribution of this study lies in the introduction of diversified strain modes through nano-twist manufacturing by the laser shock process, which is expected to provide a convenient nano-twist fabrication process for the strain engineering and twistronics fields.
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Affiliation(s)
- Jian Liu
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Nan Lu
- School of Physics, Southeast University, Nanjing 211189, China
| | - Jie Guan
- School of Physics, Southeast University, Nanjing 211189, China
| | - Yaowu Hu
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
- School of Power and Mechanical Engineering, Wuhan University, 430072 Wuhan, China
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30
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Özuğur Uysal B, Nayır Ş, Açba M, Çıtır B, Durmaz S, Koçoğlu Ş, Yıldız E, Pekcan Ö. 2D Materials (WS 2, MoS 2, MoSe 2) Enhanced Polyacrylamide Gels for Multifunctional Applications. Gels 2022; 8:gels8080465. [PMID: 35892724 PMCID: PMC9330576 DOI: 10.3390/gels8080465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
Multifunctional polymer composite gels have attracted attention because of their high thermal stability, conductivity, mechanical properties, and fast optical response. To enable the simultaneous incorporation of all these different functions into composite gels, the best doping material alternatives are two-dimensional (2D) materials, especially transition metal dichalcogenides (TMD), which have been used in so many applications recently, such as energy storage units, opto-electronic devices and catalysis. They have the capacity to regulate optical, electronic and mechanical properties of basic molecular hydrogels when incorporated into them. In this study, 2D materials (WS2, MoS2 and MoSe2)-doped polyacrylamide (PAAm) gels were prepared via the free radical crosslinking copolymerization technique at room temperature. The gelation process and amount of the gels were investigated depending on the optical properties and band gap energies. Band gap energies of composite gels containing different amounts of TMD were calculated and found to be in the range of 2.48–2.84 eV, which is the characteristic band gap energy range of promising semiconductors. Our results revealed that the microgel growth mechanism and gel point of PAAm composite incorporated with 2D materials can be significantly tailored by the amount of 2D materials. Furthermore, tunable band gap energies of these composite gels are crucial for many applications such as biosensors, cartilage repair, drug delivery, tissue regeneration, wound dressing. Therefore, our study will contribute to the understanding of the correlation between the optical and electronic properties of such composite gels and will help to increase the usage areas so as to obtain multifunctional composite gels.
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Affiliation(s)
- Bengü Özuğur Uysal
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
- Correspondence: ; Tel.: +90-2125336532 (ext. 1345)
| | - Şeyma Nayır
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
- Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Melike Açba
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
| | - Betül Çıtır
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
| | - Sümeyye Durmaz
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
| | - Şevval Koçoğlu
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
| | - Ekrem Yıldız
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
| | - Önder Pekcan
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey; (Ş.N.); (M.A.); (B.Ç.); (S.D.); (Ş.K.); (E.Y.); (Ö.P.)
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31
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Sun F, Nie C, Fu J, Xiong W, Zhi Y, Wei X. Enhancing and Broadening the Photoresponse of Monolayer MoS 2 Based on Au Nanoslit Array. ACS Appl Mater Interfaces 2022; 14:26245-26254. [PMID: 35608062 DOI: 10.1021/acsami.2c05038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two-dimensional molybdenum disulfide (MoS2), featuring unique optoelectronic properties, has attracted tremendous interest in developing novel photodetection devices. However, the limited light absorption and small carrier transport rate of the monolayer MoS2 result in low photoresponse, and the large band gap limits its detection range in the visible region. In this study, we propose a nanoslit array-MoS2 hybrid device architecture with enhanced and broadened photoresponse. The nanoslit array can localize free-space light to achieve strong interactions with MoS2, and acts as the channel to improve charge transport. As a result, the Au nanoslit array-MoS2 hybrid detector exhibits a nearly 100-fold increase in photocurrent compared to the pure MoS2 device. More importantly, the hybrid device can broaden the photoresponse to the optical communication band of 1550 nm which is lower than the band gap of MoS2, by efficiently utilizing the hot carriers generated by the Au nanoslits. The experimental results are supported by both theoretical analysis and numerical simulation. Since our demonstration leverages the engineering of the hybrid photodetectors with metal nanostructures rather than semiconductor materials, it should be universal and applicable to other devices for broadband, high-efficiency photoelectric conversion.
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Affiliation(s)
- Feiying Sun
- Chongqing Key Laboratory of Multiscale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, People's Republic of China
| | - Changbin Nie
- Chongqing Key Laboratory of Multiscale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, People's Republic of China
| | - Jintao Fu
- Chongqing Key Laboratory of Multiscale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, People's Republic of China
| | - Wen Xiong
- Chongqing Key Laboratory of Multiscale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, People's Republic of China
| | - Yizhou Zhi
- Chongqing Key Laboratory of Multiscale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, People's Republic of China
| | - Xingzhan Wei
- Chongqing Key Laboratory of Multiscale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, People's Republic of China
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32
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Pimenta Martins LG, Carvalho BR, Occhialini CA, Neme NP, Park JH, Song Q, Venezuela P, Mazzoni MSC, Matos MJS, Kong J, Comin R. Electronic Band Tuning and Multivalley Raman Scattering in Monolayer Transition Metal Dichalcogenides at High Pressures. ACS Nano 2022; 16:8064-8075. [PMID: 35466673 DOI: 10.1021/acsnano.2c01065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Transition metal dichalcogenides (TMDs) possess spin-valley locking and spin-split K/K' valleys, which have led to many fascinating physical phenomena. However, the electronic structure of TMDs also exhibits other conduction band minima with similar properties, the Q/Q' valleys. The intervalley K-Q scattering enables interesting physical phenomena, including multivalley superconductivity, but those effects are typically hindered in monolayer TMDs due to the large K-Q energy difference (ΔEKQ). To unlock elusive multivalley phenomena in monolayer TMDs, it is desirable to reduce ΔEKQ, while being able to sensitively probe the valley shifts and the multivalley scattering processes. Here, we use high pressure to tune the electronic properties of monolayer MoS2 and WSe2 and probe K-Q crossing and multivalley scattering via double-resonance Raman (DRR) scattering. In both systems, we observed a pressure-induced enhancement of the double-resonance LA and 2LA Raman bands, which can be attributed to a band gap opening and ΔEKQ decrease. First-principles calculations and photoluminescence measurements corroborate this scenario. In our analysis, we also addressed the multivalley nature of the DRR bands for WSe2. Our work establishes the DRR 2LA and LA bands as sensitive probes of strain-induced modifications to the electronic structure of TMDs. Conversely, their intensity could potentially be used to monitor the presence of compressive or tensile strain in TMDs. Furthermore, the ability to probe K-K' and K-Q scattering as a function of strain shall advance our understanding of different multivalley phenomena in TMDs such as superconductivity, valley coherence, and valley transport.
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Affiliation(s)
- Luiz G Pimenta Martins
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Bruno R Carvalho
- Departamento de Física, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59078-970, Brazil
| | - Connor A Occhialini
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Natália P Neme
- Zernike Institute for Advanced Materials and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ji-Hoon Park
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Qian Song
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Pedro Venezuela
- Instituto de Física, Universidade Federal Fluminense, Niterói, Rio de Janeiro 24210-346, Brazil
| | - Mário S C Mazzoni
- Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Matheus J S Matos
- Departamento de Física, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais 35400-000, Brazil
| | - Jing Kong
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Riccardo Comin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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33
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Sandhu HK, John JW, Jakhar A, Sharma A, Jain A, Das S. Self-powered, low-noise and high-speed nanolayered MoSe 2/p-GaN heterojunction photodetector from ultraviolet to near-infrared wavelengths. Nanotechnology 2022; 33:305201. [PMID: 35439737 DOI: 10.1088/1361-6528/ac6817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
Integration of nanolayered metal chalcogenides with wide-bandgap semiconductors forming pn heterojunction leads to the way of high-performance photodetection. This work demonstrates the fabrication of a few nanometer thick Molybdenum diselenide (MoSe2)/Mg-doped Gallium Nitride (p-GaN) heterostructure for light detection purposes. The device exhibits low noise broadband spectral response from ultraviolet to near-infrared range (300-950 nm). The band-alignment and the charge transfer at the MoSe2/p-GaN interface promote self-powered photodetection with high photocurrent to dark current ratio of 2000 and 1000 at 365 nm and 640 nm, respectively. A high responsivity of 130 A W-1, detectivity of 4.8 × 1010Jones, and low noise equivalent power of 18 fW/Hz1/2at 365 nm is achieved at an applied bias of 1 V. Moreover, the transient measurements reveal a fast rise/fall time of 407/710μsec for the fabricated device. These outcomes exemplify the viability of MoSe2/p-GaN heterostructure for high-speed and low-noise broadband photodetector applications.
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Affiliation(s)
- Harmanpreet Kaur Sandhu
- Centre for Applied Research in Electronics, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
- Solid State Physics Laboratory, Lucknow Road, Timarpur, Delhi-110054, India
| | - John Wellington John
- Centre for Applied Research in Electronics, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Alka Jakhar
- Centre for Applied Research in Electronics, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Abhishek Sharma
- Solid State Physics Laboratory, Lucknow Road, Timarpur, Delhi-110054, India
| | - Alok Jain
- Solid State Physics Laboratory, Lucknow Road, Timarpur, Delhi-110054, India
- Centre for Personnel Talent Management, Metcalfe House, Delhi-110054, India
| | - Samaresh Das
- Centre for Applied Research in Electronics, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
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34
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Di Bernardo I, Blyth J, Watson L, Xing K, Chen YH, Chen SY, Edmonds MT, Fuhrer MS. Defects, band bending and ionization rings in MoS 2. J Phys Condens Matter 2022; 34:174002. [PMID: 35081526 DOI: 10.1088/1361-648x/ac4f1d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Chalcogen vacancies in transition metal dichalcogenides are widely acknowledged as both donor dopants and as a source of disorder. The electronic structure of sulphur vacancies in MoS2however is still controversial, with discrepancies in the literature pertaining to the origin of the in-gap features observed via scanning tunneling spectroscopy (STS) on single sulphur vacancies. Here we use a combination of scanning tunnelling microscopy and STS to study embedded sulphur vacancies in bulk MoS2crystals. We observe spectroscopic features dispersing in real space and in energy, which we interpret as tip position- and bias-dependent ionization of the sulphur vacancy donor due to tip induced band bending. The observations indicate that care must be taken in interpreting defect spectra as reflecting in-gap density of states, and may explain discrepancies in the literature.
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Affiliation(s)
- Iolanda Di Bernardo
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
| | - James Blyth
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
| | - Liam Watson
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
| | - Kaijian Xing
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
| | - Yi-Hsun Chen
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
| | - Shao-Yu Chen
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
| | - Mark T Edmonds
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
- Monash Centre for Atomically Thin Materials, Monash University, Clayton, 3800, VIC, Australia
| | - Michael S Fuhrer
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, 3800, VIC, Australia
- School of Physics and Astronomy, Monash University, Clayton, 3800, VIC, Australia
- Monash Centre for Atomically Thin Materials, Monash University, Clayton, 3800, VIC, Australia
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35
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Du Z, Guo Y, Wang H, Gu J, Zhang Y, Cheng Z, Li B, Li S, Yang S. High-Throughput Production of 1T MoS 2 Monolayers Based on Controllable Conversion of Mo-Based MXenes. ACS Nano 2021; 15:19275-19283. [PMID: 34898180 DOI: 10.1021/acsnano.1c05268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Although transition metal dichalcogenides (TMDs) monolayers are widely applied in electronics, optics, catalysis, and energy storage, their yield or output is commonly very low (<1 wt % or micrometer level) based on the well-known top-down (e.g., exfoliation) and bottom-up (e.g., chemical vapor deposition) approaches. Here, 1T MoS2 monolayers with a very high fraction of ∼90% were achieved via the conversion of Mo-based MXenes (Mo2CTx and Mo1.33CTx) at high temperatures in hydrogen sulfide gas, in which the Mo-layer of Mo-based MXenes could be transformed to MoS2 monolayers and the Mo vacancies facilitate the gliding of sulfur layers to form 1T MoS2. The resultant 1T MoS2 monolayers with numerous vacancies exhibit strong chemisorption and high catalytic activity for lithium polysulfides (LiPSs), delivering a reversible capacity of 736 mAh g-1 at 0.5 C, a superior rate capability of 532 mAh g-1 at 5 C, and a good stability up to 200 cycles at 1 C in lithium-sulfur (Li-S) batteries.
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Affiliation(s)
- Zhiguo Du
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Yu Guo
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Haiyang Wang
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Jianan Gu
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Yongzheng Zhang
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Zongju Cheng
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Bin Li
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Songmei Li
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
| | - Shubin Yang
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science and Engineering, Beihang University, 100191 Beijing, China
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36
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Liu Y, Liu Y, Zhou H, Yang Z, Qu Y, Tan Y, Chen F. Defect Engineering of Out-of-Plane Charge Transport in van der Waals Heterostructures for Bi-Direction Photoresponse. ACS Nano 2021; 15:16572-16580. [PMID: 34550681 DOI: 10.1021/acsnano.1c06238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Defects are ubiquitous in two-dimensional (2D) transition-metal dichalcogenides (TMDs), generated by the initial growth- or the postprocessing. However, the defects may play negative roles in the photoelectronic properties of TMDs due to the reduction of in-plane transport of carriers. In this work, we demonstrate that the Se-vacancy defects in MoSe2 side of the van der Waal heterostructure is able to switch direction of out-of-plane charge transport. Photoresponse spectra showed defect density enable modified surface potential of MoSe2-x, leading to the barrier reverse between graphene and MoSe2-x and switches of the photoresponse from the negative to the positive. This unexpected property stemmed from appearance of midgap states by defects at heterostructure, as demonstrated by the density functional theory calculation and scanning tunneling microscope results. MoSe2-0.2/graphene heterostructure has a broadband response ranging from 450 to 1064 nm and exhibits comparable or higher positive responsivity (5.4 × 103 A/W to -15.3 × 103 A/W at 632.8 and 5.7 × 103 A/W to -1.2 × 103 A/W at 1064 nm) to the negative one of the pristine MoSe2/graphene. Based on defect-engineered heterostructures, we construct optoelectronic OR and AND logic devices with a broadband operation. Our work elucidates an alternative avenue to tailor the out-of-plane charge transport in TMD-based heterostructure through defects, and potentially invokes applicable utilization for 2D photodetectors and optoelectronic logic gates.
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Affiliation(s)
- Yanran Liu
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
| | - Yue Liu
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
| | - Hua Zhou
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
| | - Zaixing Yang
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
| | - Yuanyuan Qu
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
| | - Yang Tan
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
| | - Feng Chen
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Shandong, Jinan 250100, P. R. China
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37
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Xu Z, Yang H, Song X, Chen Y, Yang H, Liu M, Huang Z, Zhang Q, Sun J, Liu L, Wang Y. Topical review: recent progress of charge density waves in 2D transition metal dichalcogenide-based heterojunctions and their applications. Nanotechnology 2021; 32:492001. [PMID: 34450606 DOI: 10.1088/1361-6528/ac21ed] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Charge density wave (CDW) is an intriguing physical phenomenon especially found in two-dimensional (2D) layered systems such as transition-metal dichalcogenides (TMDs). The study of CDW is vital for understanding lattice modification, strongly correlated electronic behaviors, and other related physical properties. This paper gives a review of the recent studies on CDW emerging in 2D TMDs. First, a brief introduction and the main mechanisms of CDW are given. Second, the interplay between CDW patterns and the related unique electronic phenomena (superconductivity, spin, and Mottness) is elucidated. Then various manipulation methods such as doping, applying strain, local voltage pulse to induce the CDW change are discussed. Finally, examples of the potential application of devices based on CDW materials are given. We also discuss the current challenge and opportunities at the frontier in this research field.
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Affiliation(s)
- Ziqiang Xu
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Huixia Yang
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Xuan Song
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Yaoyao Chen
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Han Yang
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Meng Liu
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Zeping Huang
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Quanzhen Zhang
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Jiatao Sun
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Liwei Liu
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Yeliang Wang
- School of Integrated Circuits and Electronics, MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing, People's Republic of China
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38
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Bastonero L, Cicero G, Palummo M, Re Fiorentin M. Boosted Solar Light Absorbance in PdS 2/PtS 2 Vertical Heterostructures for Ultrathin Photovoltaic Devices. ACS Appl Mater Interfaces 2021; 13:43615-43621. [PMID: 34468121 PMCID: PMC8447185 DOI: 10.1021/acsami.1c11245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Transition-metal dichalcogenides (TMDs) represent a class of materials whose archetypes, such as MoS2 and WS2, possess exceptional electronic and optical properties and have been massively exploited in optoelectronic applications. The layered structure allows for their exfoliation to two-dimensional samples with atomic thickness (≲ 1 nm), promising for ultrathin, ultralight devices. In this work, by means of state-of-the-art ab initio many-body perturbation theory techniques, we focus on single-layer PdS2 and PtS2 and propose a novel van der Waals heterostructure with outstanding light absorbance, reaching up to 50% in the visible spectrum and yielding a maximum short-circuit current of 7.2 mA/cm2 under solar irradiation. The computed excitonic landscape predicts a partial charge separation between the two layers and the momentum-forbidden lowest-energy state increases the carrier diffusion length. Our results show that the employment of vertical heterostructures with less conventional TMDs, such as PdS2/PtS2, can greatly boost light absorbance and favor the development of more efficient, atomic-thin photovoltaic devices.
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Affiliation(s)
- Lorenzo Bastonero
- U
Bremen Excellence Chair “Materials Design and Discovery”
and Hybrid Materials Interfaces Group, Bremen Center for Computational
Materials Science, University of Bremen, Am Fallturm 1, 28359 Bremen, Germany
- Dipartimento
di Fisica, Università Degli Studi
Torino, Via Giuria 1, 10125 Torino, Italy
| | - Giancarlo Cicero
- Dipartimento
di Scienza Applicata e Tecnologia, Politecnico
di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
| | - Maurizia Palummo
- Dipartimento
di Fisica and INFN, Università di
Roma “Tor Vergata”, Via Della Ricerca Scientifica 1, 00133 Roma, Italy
| | - Michele Re Fiorentin
- Center
for Sustainable Future Technologies, Istituto
Italiano di Tecnologia, Via Livorno 60, 10144 Torino, Italy
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39
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Chen Z, Li Y, Wang K, Zhang Y. Scalable production of intrinsic WX 2(X = S, Se, Te) quantum sheets for efficient hydrogen evolution electrocatalysis. Nanotechnology 2021; 32:495701. [PMID: 34450598 DOI: 10.1088/1361-6528/ac21f0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Mass production of transition-metal dichalcogenides has attracted much attention to replace platinum-based catalysts for the hydrogen evolution reaction (HER). Herein, we demonstrate a general strategy for the scalable production of the intrinsic tungsten dichalcogenide (WX2(X = S, Se, Te)) quantum sheets (QSs) by an all-physical top-down method. The method combines silica-assisted ball-milling and sonication-assisted solvent exfoliation and thus enables production of WS2QSs, WSe2QSs, and WTe2QSs in exceedingly high yields of 28.2, 21.3, 19.9 wt%, respectively. The WX2QSs are confirmed as intrinsic and defect-free, which could be determinative to their improved HER performance. The overpotentials of 285, 331, 435 mV at the current density of 10 mA cm-2and Tafel slopes of 116, 78, 162 mV dec-1in acidic media, as well as charge transfer resistance values of 171, 242, 1973 Ω, are derived for WS2QSs, WSe2QSs, and WTe2QSs, respectively, which are much better than those of bulk materials. The WX2QSs exhibit high stability during the electrocatalysis as well. This work offers a powerful approach for fabrication of intrinsic QSs as efficient and robust electrocatalysts.
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Affiliation(s)
- Zhexue Chen
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yueqi Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Kangkang Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yong Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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40
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Lee M, Kang JH, Mujid F, Suh J, Ray A, Park C, Muller DA, Park J. Atomically Thin, Optically Isotropic Films with 3D Nanotopography. Nano Lett 2021; 21:7291-7297. [PMID: 34415174 PMCID: PMC8431725 DOI: 10.1021/acs.nanolett.1c02478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Flat optics aims for the on-chip miniaturization of optical systems for high-speed and low-power operation, with integration of thin and lightweight components. Here, we present atomically thin yet optically isotropic films realized by using three-dimensional (3D) topographic reconstruction of anisotropic two-dimensional (2D) films to balance the out-of-plane and in-plane optical responses on the subwavelength scale. We achieve this by conformal growth of monolayer transition metal dichalcogenide (TMD) films on nanodome-structured substrates. The resulting films show an order-of-magnitude increase in the out-of-plane susceptibility for enhanced angular performance, displaying polarization isotropy in the off-axis absorption, as well as improved photoluminescence emission profiles, compared to their flat-film counterparts. We further show that such 3D geometric programming of optical properties is applicable to different TMD materials, offering spectral generalization over for the entire visible range. Our approach presents a powerful platform for advancing the development of atomically thin flat optics with custom-designed light-matter interactions.
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Affiliation(s)
- Myungjae Lee
- James
Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Jong-Hoon Kang
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Fauzia Mujid
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Joonki Suh
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Ariana Ray
- Department
of Physics, Cornell University, Ithaca, New York 14853, United States
| | - Chibeom Park
- James
Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - David. A. Muller
- School
of Applied and Engineering Physics, Cornell
University, Ithaca, New York 14853, United
States
| | - Jiwoong Park
- James
Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
- Department
of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United
States
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41
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Danielsen DR, Lyksborg-Andersen A, Nielsen KES, Jessen BS, Booth TJ, Doan MH, Zhou Y, Bøggild P, Gammelgaard L. Super-Resolution Nanolithography of Two-Dimensional Materials by Anisotropic Etching. ACS Appl Mater Interfaces 2021; 13:41886-41894. [PMID: 34431654 DOI: 10.1021/acsami.1c09923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanostructuring allows altering of the electronic and photonic properties of two-dimensional (2D) materials. The efficiency, flexibility, and convenience of top-down lithography processes are, however, compromised by nanometer-scale edge roughness and resolution variability issues, which especially affect the performance of 2D materials. Here, we study how dry anisotropic etching of multilayer 2D materials with sulfur hexafluoride (SF6) may overcome some of these issues, showing results for hexagonal boron nitride (hBN), tungsten disulfide (WS2), tungsten diselenide (WSe2), molybdenum disulfide (MoS2), and molybdenum ditelluride (MoTe2). Scanning electron microscopy and transmission electron microscopy reveal that etching leads to anisotropic hexagonal features in the studied transition metal dichalcogenides, with the relative degree of anisotropy ranked as: WS2 > WSe2 > MoTe2 ∼ MoS2. Etched holes are terminated by zigzag edges while etched dots (protrusions) are terminated by armchair edges. This can be explained by Wulff constructions, taking the relative stabilities of the edges and the AA' stacking order into account. Patterns in WS2 are transferred to an underlying graphite layer, demonstrating a possible use for creating sub-10 nm features. In contrast, multilayer hBN exhibits no lateral anisotropy but shows consistent vertical etch angles, independent of crystal orientation. Using an hBN crystal as the base, ultrasharp corners can be created in lithographic patterns, which are then transferred to a graphite crystal underneath. We find that the anisotropic SF6 reactive ion etching process makes it possible to downsize nanostructures and obtain smooth edges, sharp corners, and feature sizes significantly below the resolution limit of electron beam lithography. The nanostructured 2D materials can be used themselves or as etch masks to pattern other nanomaterials.
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Affiliation(s)
- Dorte R Danielsen
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
| | - Anton Lyksborg-Andersen
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
- DTU Nanolab - National Centre for Nano Fabrication and Characterization, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
| | - Kirstine E S Nielsen
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
| | - Bjarke S Jessen
- Department of Physics, Columbia University, New York, New York 10027, United States
| | - Timothy J Booth
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
| | - Manh-Ha Doan
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
| | - Yingqiu Zhou
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
| | - Peter Bøggild
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
| | - Lene Gammelgaard
- Department of Physics, Technical University of Denmark (DTU), Kgs. Lyngby 2800, Denmark
- Centre for Nanostructured Graphene (CNG), Technical University of Denmark, Ørsteds Plads 345C, Kgs. Lyngby DK-2800, Denmark
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Ghosh K, Pumera M. MXene and MoS 3- x Coated 3D-Printed Hybrid Electrode for Solid-State Asymmetric Supercapacitor. Small Methods 2021; 5:e2100451. [PMID: 34927869 DOI: 10.1002/smtd.202100451] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/14/2021] [Indexed: 06/14/2023]
Abstract
Recently, 2D nanomaterials such as transition metal carbides or nitrides (MXenes) and transition metal dichalcogenides (TMDs) have attracted ample attention in the field of energy storage devices specifically in supercapacitors (SCs) because of their high metallic conductivity, wide interlayer spacing, large surface area, and 2D layered structures. However, the low potential window (ΔV ≈ 0.6 V) of MXene e.g., Ti3 C2 Tx limits the energy density of the SCs. Herein, asymmetric supercapacitors (ASCs) are fabricated by assembling the exfoliated Ti3 C2 Tx (Ex-Ti3 C2 Tx ) as the negative electrode and transition metal chalcogenide (MoS3- x ) coated 3D-printed nanocarbon framework (MoS3- x @3DnCF) as the positive electrode utilizing polyvinyl alcohol (PVA)/H2 SO4 gel electrolyte, which provides a wide ΔV of 1.6 V. The Ex-Ti3 C2 Tx possesses wrinkled sheets which prevent the restacking of Ti3 C2 Tx 2D layers. The MoS3- x @3DnCF holds a porous structure and offers diffusion-controlled intercalated pseudocapacitance that enhances the overall capacitance. The 3D printing allows a facile fabrication of customized shaped MoS3- x @3DnCF electrodes. Employing the advantages of the 3D-printing facilities, two different ASCs, such as sandwich- and interdigitated-configurations are fabricated. The customized ASCs provide excellent capacitive performance. Such ASCs combining the MXene and electroactive 3D-printed nanocarbon framework can be used as potential energy storage devices in modern electronics.
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Affiliation(s)
- Kalyan Ghosh
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 61200, Czech Republic
| | - Martin Pumera
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 61200, Czech Republic
- 3D Printing & Innovation Hub, Department of Food Technology, Mendel University in Brno, Zemedelska 1, Brno, 61300, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
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Karpińska M, Liang M, Kempt R, Finzel K, Kamminga M, Dyksik M, Zhang N, Knodlseder C, Maude DK, Baranowski M, Kłopotowski Ł, Ye J, Kuc A, Plochocka P. Nonradiative Energy Transfer and Selective Charge Transfer in a WS 2/(PEA) 2PbI 4 Heterostructure. ACS Appl Mater Interfaces 2021; 13:33677-33684. [PMID: 34227384 DOI: 10.1021/acsami.1c08377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
van der Waals heterostructures are currently the focus of intense investigation; this is essentially due to the unprecedented flexibility offered by the total relaxation of lattice matching requirements and their new and exotic properties compared to the individual layers. Here, we investigate the hybrid transition-metal dichalcogenide/2D perovskite heterostructure WS2/(PEA)2PbI4 (where PEA stands for phenylethylammonium). We present the first density functional theory (DFT) calculations of a heterostructure ensemble, which reveal a novel band alignment, where direct electron transfer is blocked by the organic spacer of the 2D perovskite. In contrast, the valence band forms a cascade from WS2 through the PEA to the PbI4 layer allowing hole transfer. These predictions are supported by optical spectroscopy studies, which provide compelling evidence for both charge transfer and nonradiative transfer of the excitation (energy transfer) between the layers. Our results show that TMD/2D perovskite (where TMD stands for transition-metal dichalcogenides) heterostructures provide a flexible and convenient way to engineer the band alignment.
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Affiliation(s)
- Miriam Karpińska
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, 38042 Grenoble and 31400 Toulouse, France
- Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland
| | - Minpeng Liang
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Roman Kempt
- Technische Universität Dresden, Bergstr. 66c, 01062 Dresden, Germany
| | - Kati Finzel
- Technische Universität Dresden, Bergstr. 66c, 01062 Dresden, Germany
| | - Machteld Kamminga
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Mateusz Dyksik
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, 38042 Grenoble and 31400 Toulouse, France
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
| | - Nan Zhang
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, 38042 Grenoble and 31400 Toulouse, France
| | - Catherine Knodlseder
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, 38042 Grenoble and 31400 Toulouse, France
| | - Duncan K Maude
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, 38042 Grenoble and 31400 Toulouse, France
| | - Michał Baranowski
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
| | | | - Jianting Ye
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Agnieszka Kuc
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Paulina Plochocka
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, 38042 Grenoble and 31400 Toulouse, France
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
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Tanwar S, Arya A, Gaur A, Sharma AL. Transition metal dichalcogenide ( TMDs) electrodes for supercapacitors: a comprehensive review. J Phys Condens Matter 2021; 33:303002. [PMID: 33892487 DOI: 10.1088/1361-648x/abfb3c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
As globally, the main focus of the researchers is to develop novel electrode materials that exhibit high energy and power density for efficient performance energy storage devices. This review covers the up-to-date progress achieved in transition metal dichalcogenides (TMDs) (e.g. MoS2, WS2, MoSe2,and WSe2) as electrode material for supercapacitors (SCs). The TMDs have remarkable properties like large surface area, high electrical conductivity with variable oxidation states. These properties enable the TMDs as the most promising candidates to store electrical energy via hybrid charge storage mechanisms. Consequently, this review article provides a detailed study of TMDs structure, properties, and evolution. The characteristics technique and electrochemical performances of all the efficient TMDs are highlighted meticulously. In brief, the present review article shines a light on the structural and electrochemical properties of TMD electrodes. Furthermore, the latest fabricated TMDs based symmetric/asymmetric SCs have also been reported.
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Affiliation(s)
- Shweta Tanwar
- Department of Physics, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Anil Arya
- Department of Physics, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Anurag Gaur
- Department of Physics, National Institute of Technology, Kurukshetra-136119, Haryana, India
| | - A L Sharma
- Department of Physics, Central University of Punjab, Bathinda-151401, Punjab, India
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45
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Xu Y, Xie J, Zhang Y, Tian F, Yang C, Zheng W, Liu X, Zhang J, Pinna N. Edge-enriched WS 2 nanosheets on carbon nanofibers boosts NO 2 detection at room temperature. J Hazard Mater 2021; 411:125120. [PMID: 33485227 DOI: 10.1016/j.jhazmat.2021.125120] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/23/2020] [Accepted: 01/10/2021] [Indexed: 05/26/2023]
Abstract
Two-dimensional (2D) transition metal dichalcogenides (TMDs) hold great promise for room temperature (RT) NO2 sensors. However, the exposure of the edges of TMDs with high adsorption capability and electronic activity remains a great obstacle to achieve high sensor sensitivity. Herein, we demonstrate a high-performance RT NO2 gas sensor based on WS2 nanosheets/carbon nanofibers (CNFs) composite with abundant intentionally exposed WS2 edges. Few-layer WS2 nanosheets are anchored on CNFs through a hydrothermal process. The approach permits to achieve a coating presenting an optimized active surface area and accessibility of the sensing layers. The exposure of WS2 edges remarkably improves the sensing properties. Consequently, the WS2@CNFs composite exhibits excellent selectivity to NO2 at RT with improved response and much lower detection limit in comparison to the WS2 and CNFs counterparts. Density functional theory (DFT) calculations verify a surprisingly strong NO2 adsorption on WS2 edge sites (adsorption energy 3.40 eV) with a partial charge transfer of 0.394e, while a week adsorption on the basal surface of WS2 (adsorption energy 0.25 eV) with a partial charge transfer of 0.171e. The strategy proposed herein will be instructive to the design of efficient material structures for low-power NO2 sensors with optimized performances.
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Affiliation(s)
- Yongshan Xu
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Jiayue Xie
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Yunfan Zhang
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - FengHui Tian
- State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Chen Yang
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Wei Zheng
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China
| | - Xianghong Liu
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China.
| | - Jun Zhang
- College of Physics, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, China.
| | - Nicola Pinna
- Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
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46
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Khan R, Radoi A, Rashid S, Hayat A, Vasilescu A, Andreescu S. Two-Dimensional Nanostructures for Electrochemical Biosensor. Sensors (Basel) 2021; 21:3369. [PMID: 34066272 PMCID: PMC8152006 DOI: 10.3390/s21103369] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 12/12/2022]
Abstract
Current advancements in the development of functional nanomaterials and precisely designed nanostructures have created new opportunities for the fabrication of practical biosensors for field analysis. Two-dimensional (2D) and three-dimensional (3D) nanomaterials provide unique hierarchical structures, high surface area, and layered configurations with multiple length scales and porosity, and the possibility to create functionalities for targeted recognition at their surface. Such hierarchical structures offer prospects to tune the characteristics of materials-e.g., the electronic properties, performance, and mechanical flexibility-and they provide additional functions such as structural color, organized morphological features, and the ability to recognize and respond to external stimuli. Combining these unique features of the different types of nanostructures and using them as support for bimolecular assemblies can provide biosensing platforms with targeted recognition and transduction properties, and increased robustness, sensitivity, and selectivity for detection of a variety of analytes that can positively impact many fields. Herein, we first provide an overview of the recently developed 2D nanostructures focusing on the characteristics that are most relevant for the design of practical biosensors. Then, we discuss the integration of these materials with bio-elements such as bacteriophages, antibodies, nucleic acids, enzymes, and proteins, and we provide examples of applications in the environmental, food, and clinical fields. We conclude with a discussion of the manufacturing challenges of these devices and opportunities for the future development and exploration of these nanomaterials to design field-deployable biosensors.
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Affiliation(s)
- Reem Khan
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699, USA;
| | - Antonio Radoi
- National Institute for Research and Development in Microtechnology—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Voluntari, Romania;
| | - Sidra Rashid
- IRCBM, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan; (S.R.); (A.H.)
| | - Akhtar Hayat
- IRCBM, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan; (S.R.); (A.H.)
| | - Alina Vasilescu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101 Bucharest, Romania;
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699, USA;
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47
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Susarla S, M Sassi L, Zobelli A, Woo SY, Tizei LHG, Stéphan O, Ajayan PM. Mapping Modified Electronic Levels in the Moiré Patterns in MoS 2/WSe 2 Using Low-Loss EELS. Nano Lett 2021; 21:4071-4077. [PMID: 33900086 DOI: 10.1021/acs.nanolett.1c00984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hybrid/moiré interlayer and intralayer excitons have been realized in twisted two-dimensional transition metal chalcogenides (2D-TMD) due to variation in local moiré potential within a moiré supercell. Though moiré excitons have been detected in TMD heterostructures by macroscopic spectroscopic techniques, their spatial distribution is experimentally unknown. In the present work, using high-resolution scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS), we explore the effect of the twist angle in MoS2/WSe2 heterostructures. We observe weak interaction between the layers at higher twist angles (>5°) and stronger interaction for lower twist angles. The optical response of the heterostructure varies within the moiré supercell, with a lower energy absorption peak appearing in regions with the AA stacking.
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Affiliation(s)
- Sandhya Susarla
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
- Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, Orsay 91405, France
| | - Lucas M Sassi
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Alberto Zobelli
- Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, Orsay 91405, France
| | - Steffi Y Woo
- Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, Orsay 91405, France
| | - Luiz H G Tizei
- Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, Orsay 91405, France
| | - Odile Stéphan
- Laboratoire de Physique des Solides, Université Paris-Saclay, CNRS, Orsay 91405, France
| | - Pulickel M Ajayan
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
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48
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Choi W, Kim J, Lee E, Mehta G, Prasad V. Asymmetric 2D MoS 2 for Scalable and High-Performance Piezoelectric Sensors. ACS Appl Mater Interfaces 2021; 13:13596-13603. [PMID: 33710868 DOI: 10.1021/acsami.1c00650] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Piezoelectricity in two-dimensional (2D) transition-metal dichalcogenides (TMDs) has attracted significant attention due to their unique crystal structure and the lack of inversion centers when the bulk TMDs thin down to monolayers. Although the piezoelectric effect in atomic-thickness TMDs has been reported earlier, they are exfoliated 2D TMDs and are therefore not scalable. Here, we demonstrate a superior piezoelectric effect from large-scale sputtered, asymmetric 2D MoS2 using meticulous defect engineering based on the thermal-solvent annealing of the MoS2 layer. This yields an output peak current and voltage of 20 pA and 700 mV (after annealing at 450 °C), respectively, which is the highest piezoelectric strength ever reported in 2D MoS2. Indeed, the piezoelectric strength increases with the defect density (sulfur vacancies), which, in turn, increases with the annealing temperature at least up to 450 °C. Moreover, our piezoelectric MoS2 device array shows an exceptional piezoelectric sensitivity of 262 mV/kPa with a high level of uniformity and excellent performance under ambient conditions. A detailed study of the sulfur vacancy-dependent property and its resultant asymmetric structure-induced piezoelectricity is reported. The proposed approach is scalable and can produce advanced materials for flexible piezoelectric devices to be used in emerging bioinspired robotics and biomedical applications.
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Affiliation(s)
- Wonbong Choi
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, Unites States
- Department of Mechanical Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Junyoung Kim
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, Unites States
| | - Eunho Lee
- Department of Mechanical Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Gayatri Mehta
- Department of Electrical Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Vish Prasad
- Department of Mechanical Engineering, University of North Texas, Denton, Texas 76203, United States
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Ezgi Eroglu Z, Contreras D, Bahrami P, Azam N, Mahjouri-Samani M, Boulesbaa A. Filling Exciton Trap-States in Two-Dimensional Tungsten Disulfide (WS 2) and Diselenide (WSe 2) Monolayers. Nanomaterials (Basel) 2021; 11:770. [PMID: 33803656 DOI: 10.3390/nano11030770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/09/2021] [Accepted: 03/16/2021] [Indexed: 11/28/2022]
Abstract
Two-dimensional transition metal dichalcogenides (2D-TMDs) hold a great potential to platform future flexible optoelectronics. The beating hearts of these materials are their excitons known as XA and XB, which arise from transitions between spin-orbit split (SOS) levels in the conduction and valence bands at the K-point. The functionality of 2D-TMD-based devices is determined by the dynamics of these excitons. One of the most consequential channels of exciton decay on the device functionality is the defect-assisted recombination (DAR). Here, we employ steady-state absorption and emission spectroscopies, and pump density-dependent femtosecond transient absorption spectroscopy to report on the effect of DAR on the lifetime of excitons in monolayers of tungsten disulfide (2D-WS2) and diselenide (2D-WSe2). These pump-probe measurements suggested that while exciton decay dynamics in both monolayers are driven by DAR, in 2D-WS2, defect states near the XB exciton fill up before those near the XA exciton. However, in the 2D-WSe2 monolayer, the defect states fill up similarly. Understanding the contribution of DAR on the lifetime of excitons and the partition of this decay channel between XA and XB excitons may open new horizons for the incorporation of 2D-TMD materials in future optoelectronics.
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Abstract
The valence band maxima of most group VI transition metal dichalcogenide thin films remain at the Γ point all of the way from bulk to bilayer. In this paper, we develop a continuum theory of the moiré minibands that are formed in the valence bands of Γ-valley homobilayers by a small relative twist. Our effective theory is benchmarked against large-scale ab initio electronic structure calculations that account for lattice relaxation. As a consequence of an emergent [Formula: see text] symmetry, we find that low-energy Γ-valley moiré holes differ qualitatively from their K-valley counterparts addressed previously; in energetic order, the first three bands realize 1) a single-orbital model on a honeycomb lattice, 2) a two-orbital model on a honeycomb lattice, and 3) a single-orbital model on a kagome lattice.
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Affiliation(s)
- Mattia Angeli
- International School for Advanced Studies, I-34136 Trieste, Italy;
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