1
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Imwiset KJ, Dudko V, Markus P, Papastavrou G, Breu J, Ogawa M. Forceless spontaneous delamination of high-aspect ratio fluorohectorite into monolayer nanosheets in chloroform. Chem Commun (Camb) 2024; 60:6383-6386. [PMID: 38814048 DOI: 10.1039/d4cc00475b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
One-dimensional dissolution of a layered compound in a nonpolar organic solvent is reported for the first time. A high-aspect ratio fluorohectorite modified with a cationic surfactant (dioctadecyldimethylammonium) showed spontaneous delamination into monolayer nanosheets in chloroform.
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Affiliation(s)
- Kamonnart Jaa Imwiset
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan Valley, Rayong 21210, Thailand.
| | - Volodymyr Dudko
- Department of Chemistry and Bavarian Polymer Institute, University of Bayreuth, 95440, Bayreuth, Germany.
| | - Paul Markus
- Physical Chemistry II and Bavarian Polymer Institute, University of Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany
| | - Georg Papastavrou
- Physical Chemistry II and Bavarian Polymer Institute, University of Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany
| | - Josef Breu
- Department of Chemistry and Bavarian Polymer Institute, University of Bayreuth, 95440, Bayreuth, Germany.
| | - Makoto Ogawa
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan Valley, Rayong 21210, Thailand.
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2
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Jeffries WR, Jawaid AM, Vaia RA, Knappenberger KL. Thickness-dependent electronic relaxation dynamics in solution-phase redox-exfoliated MoS2 heterostructures. J Chem Phys 2024; 160:144707. [PMID: 38597312 DOI: 10.1063/5.0200398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/20/2024] [Indexed: 04/11/2024] Open
Abstract
Electronic relaxation dynamics of solution-phase redox-exfoliated molybdenum disulfide (MoS2) monolayer and multilayer ensembles are described. MoS2 was exfoliated using polyoxometalate (POM) reductants. This process yields a colloidal heterostructure consisting of MoS2 2D sheet multilayers with surface-bound POM complexes. Using two-dimensional electronic spectroscopy, transient bleaching and photoinduced absorption signals were detected at excitation/detection energies of 1.82/1.87 and 1.82/1.80 eV, respectively. Approximate 100-fs bandgap renormalization (BGR) and subsequent defect- and phonon-mediated relaxation on the picosecond timescale were resolved for several MoS2 thicknesses spanning from 1 to 2 L to ∼20 L. BGR rates were independent of sample thickness and slightly slower than observations for chemical vapor deposition-grown MoS2 monolayers. However, defect-mediated relaxation accelerated ∼10-fold with increased sample thicknesses. The relaxation rates increased from 0.33 ± 0.05 to 1.2 ± 0.1 and 3.1 ± 0.4 ps-1 for 1-2 L, 3-4 L, and 20 L fractions. The thicknesses-dependent relaxation rates for POM-MoS2 heterostructures were modeled using a saturating exponential function that showed saturation at thirteen MoS2 layers. The results suggest that the increased POM surface coverage leads to larger defect density in the POM-MoS2 heterostructure. These are the first descriptions of the influence of sample thickness on electronic relaxation rates in solution-phase redox-exfoliated POM-MoS2 heterostructures. Outcomes of this work are expected to impact the development of solution-phase exfoliation of 2D metal-chalcogenide heterostructures.
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Affiliation(s)
- William R Jeffries
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Ali M Jawaid
- Air Force Research Laboratory, 2941 Hobson Way, Wright Patterson Air Force Base, Dayton, Ohio 45433, USA
| | - Richard A Vaia
- Air Force Research Laboratory, 2941 Hobson Way, Wright Patterson Air Force Base, Dayton, Ohio 45433, USA
| | - Kenneth L Knappenberger
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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3
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Zhang L, Yang Z, Feng S, Guo Z, Jia Q, Zeng H, Ding Y, Das P, Bi Z, Ma J, Fu Y, Wang S, Mi J, Zheng S, Li M, Sun DM, Kang N, Wu ZS, Cheng HM. Metal telluride nanosheets by scalable solid lithiation and exfoliation. Nature 2024; 628:313-319. [PMID: 38570689 DOI: 10.1038/s41586-024-07209-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 02/20/2024] [Indexed: 04/05/2024]
Abstract
Transition metal tellurides (TMTs) have been ideal materials for exploring exotic properties in condensed-matter physics, chemistry and materials science1-3. Although TMT nanosheets have been produced by top-down exfoliation, their scale is below the gram level and requires a long processing time, restricting their effective application from laboratory to market4-8. We report the fast and scalable synthesis of a wide variety of MTe2 (M = Nb, Mo, W, Ta, Ti) nanosheets by the solid lithiation of bulk MTe2 within 10 min and their subsequent hydrolysis within seconds. Using NbTe2 as a representative, we produced more than a hundred grams (108 g) of NbTe2 nanosheets with 3.2 nm mean thickness, 6.2 µm mean lateral size and a high yield (>80%). Several interesting quantum phenomena, such as quantum oscillations and giant magnetoresistance, were observed that are generally restricted to highly crystalline MTe2 nanosheets. The TMT nanosheets also perform well as electrocatalysts for lithium-oxygen batteries and electrodes for microsupercapacitors (MSCs). Moreover, this synthesis method is efficient for preparing alloyed telluride, selenide and sulfide nanosheets. Our work opens new opportunities for the universal and scalable synthesis of TMT nanosheets for exploring new quantum phenomena, potential applications and commercialization.
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Affiliation(s)
- Liangzhu Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
- Shanghai Electronic Chemicals innovation Institute, East China University of science and Technology, Shanghai, China
| | - Zixuan Yang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, China
| | - Shun Feng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Zhuobin Guo
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qingchao Jia
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
- Shanghai Electronic Chemicals innovation Institute, East China University of science and Technology, Shanghai, China
| | - Huidan Zeng
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
- Shanghai Electronic Chemicals innovation Institute, East China University of science and Technology, Shanghai, China
| | - Yajun Ding
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Pratteek Das
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Zhihong Bi
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jiaxin Ma
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yunqi Fu
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, China
| | - Sen Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Jinxing Mi
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Shuanghao Zheng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, China
| | - Mingrun Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Ning Kang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, China.
| | - Zhong-Shuai Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, China.
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.
- Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- Faculty of Materials Science and Energy Engineering, Shenzhen University of Advanced Technology, Shenzhen, China.
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4
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Gomes ASL, Campos CLAV, de Araújo CB, Maldonado M, da Silva-Neto ML, Jawaid AM, Busch R, Vaia RA. Intensity-Dependent Optical Response of 2D LTMDs Suspensions: From Thermal to Electronic Nonlinearities. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2267. [PMID: 37570584 PMCID: PMC10421368 DOI: 10.3390/nano13152267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
The nonlinear optical (NLO) response of photonic materials plays an important role in the understanding of light-matter interaction as well as pointing out a diversity of photonic and optoelectronic applications. Among the recently studied materials, 2D-LTMDs (bi-dimensional layered transition metal dichalcogenides) have appeared as a beyond-graphene nanomaterial with semiconducting and metallic optical properties. In this article, we review most of our work in studies of the NLO response of a series of 2D-LTMDs nanomaterials in suspension, using six different NLO techniques, namely hyper Rayleigh scattering, Z-scan, photoacoustic Z-scan, optical Kerr gate, and spatial self-phase modulation, besides the Fourier transform nonlinear optics technique, to infer the nonlinear optical response of semiconducting MoS2, MoSe2, MoTe2, WS2, semimetallic WTe2, ZrTe2, and metallic NbS2 and NbSe2. The nonlinear optical response from a thermal to non-thermal origin was studied, and the nonlinear refraction index and nonlinear absorption coefficient, where present, were measured. Theoretical support was given to explain the origin of the nonlinear responses, which is very dependent on the spectro-temporal regime of the optical source employed in the studies.
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Affiliation(s)
- Anderson S. L. Gomes
- Departamento de Física, Universidade Federal of Pernambuco, Recife 50670-901, PE, Brazil; (C.L.A.V.C.); (C.B.d.A.); (M.M.); (M.L.d.S.-N.)
| | - Cecília L. A. V. Campos
- Departamento de Física, Universidade Federal of Pernambuco, Recife 50670-901, PE, Brazil; (C.L.A.V.C.); (C.B.d.A.); (M.M.); (M.L.d.S.-N.)
| | - Cid B. de Araújo
- Departamento de Física, Universidade Federal of Pernambuco, Recife 50670-901, PE, Brazil; (C.L.A.V.C.); (C.B.d.A.); (M.M.); (M.L.d.S.-N.)
| | - Melissa Maldonado
- Departamento de Física, Universidade Federal of Pernambuco, Recife 50670-901, PE, Brazil; (C.L.A.V.C.); (C.B.d.A.); (M.M.); (M.L.d.S.-N.)
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Manoel L. da Silva-Neto
- Departamento de Física, Universidade Federal of Pernambuco, Recife 50670-901, PE, Brazil; (C.L.A.V.C.); (C.B.d.A.); (M.M.); (M.L.d.S.-N.)
| | - Ali M. Jawaid
- Materials and Manufacturing Directorate, Air Force Research Laboratories, Wright-Patterson Air Force Base, Dayton, OH 45433, USA; (A.M.J.); (R.B.); (R.A.V.)
| | - Robert Busch
- Materials and Manufacturing Directorate, Air Force Research Laboratories, Wright-Patterson Air Force Base, Dayton, OH 45433, USA; (A.M.J.); (R.B.); (R.A.V.)
| | - Richard A. Vaia
- Materials and Manufacturing Directorate, Air Force Research Laboratories, Wright-Patterson Air Force Base, Dayton, OH 45433, USA; (A.M.J.); (R.B.); (R.A.V.)
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5
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Carrasco D, García-Dalí S, Villar-Rodil S, Munuera JM, Raymundo-Piñero E, Paredes JI. NbSe 2 Nanosheets/Nanorolls Obtained via Fast and Direct Aqueous Electrochemical Exfoliation for High-Capacity Lithium Storage. ACS APPLIED ENERGY MATERIALS 2023; 6:7180-7193. [PMID: 37448979 PMCID: PMC10337822 DOI: 10.1021/acsaem.3c00893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/03/2023] [Indexed: 07/18/2023]
Abstract
Layered transition-metal dichalcogenides (LTMDs) in two-dimensional (2D) form are attractive for electrochemical energy storage, but research efforts in this realm have so far largely focused on the best-known members of such a family of materials, mainly MoS2, MoSe2, and WS2. To exploit the potential of further, currently less-studied 2D LTMDs, targeted methods for their production, preferably by cost-effective and sustainable means, as well as control over their nanomorphology, are highly desirable. Here, we report a quick and straightforward route for the preparation of 2D NbSe2 and other metallic 2D LTMDs that relies on delaminating their bulk parent solid under aqueous cathodic conditions. Unlike typical electrochemical exfoliation methods for 2D materials, which generally require an additional processing step (e.g., sonication) to complete delamination, the present electrolytic strategy yielded directly exfoliated nano-objects in a very short time (1-2 min) and with significant yields (∼16 wt %). Moreover, the dominant morphology of the exfoliated 2D NbSe2 products could be tuned between rolled-up nanosheets (nanorolls) and unfolded nanosheets, depending on the solvent where the nano-objects were dispersed (water or isopropanol). This rather unusual delamination behavior of NbSe2 was explored and concluded to occur via a redox mechanism that involves some degree of hydrolytic oxidation of the material triggered by the cathodic treatment. The delamination strategy could be extended to other metallic LTMDs, such as NbS2 and VSe2. When tested toward electrochemical lithium storage, electrodes based on the exfoliated NbSe2 products delivered very high capacity values, up to 750-800 mA h g-1 at 0.5 A g-1, where the positive effect of the nanoroll morphology, associated to increased accessibility of the lithium storage sites, was made apparent. Overall, these results are expected to expand the availability of fit-for-purpose 2D LTMDs by resorting to simple and expeditious production strategies of low environmental impact.
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Affiliation(s)
- Daniel
F. Carrasco
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | - Sergio García-Dalí
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
- CNRS,
CEMHTI UPR3079, Univ. Orléans, 1D Avenue de la Recherche Scientifique, Orléans 45071, France
| | - Silvia Villar-Rodil
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | - José M. Munuera
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
| | | | - Juan I. Paredes
- Instituto
de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, Oviedo 33011, Spain
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6
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Carvalho AJA, Campos CLAV, Valente D, Jawaid AM, Busch R, Vaia RA, Gomes ASL. Near-infrared ultrafast third-order nonlinear optical response of 2D NbS 2, NbSe 2, ZrTe 2, and MoS 2. OPTICS LETTERS 2023; 48:2297-2300. [PMID: 37126258 DOI: 10.1364/ol.487443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
By employing the optical Kerr gate technique at 800 nm with 180 fs pulses at 76 MHz, we evaluated the third-order nonlinear optical response of two-dimensional (2D) semiconducting MoS2, semimetallic ZrTe2, and metallic NbS2 and NbSe2. The modulus of the nonlinear refractive index was measured to range from 8.6 × 10-19 m2/W to 5.3 × 10-18 m2/W, with all materials' response time limited by the pulse duration. The physical mechanism to explain the ultrafast response time's origin considers the nature of the 2D material, as will be discussed.
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7
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Han Y, Wang M, Dong Y, Cheng Z, Li X, Yan X, Zhang Y, Zhang J. Improving performances of Lithium-Sulfur cells via regulating of VSe 2 functional mediator with Doping-Defect engineering and Electrode-Separator integration strategy. J Colloid Interface Sci 2023; 644:42-52. [PMID: 37094471 DOI: 10.1016/j.jcis.2023.04.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/26/2023]
Abstract
The sluggish redox kinetics and the severe shuttle effect of soluble lithium polysulfides (LiPSs) are the main key issues which would hinder the development of lithium-sulfur (Li-S) batteries. In this work, a nickel-doped vanadium selenide in-situ grows on reduced graphene oxide(rGO) to form a two-dimensional (2D) composite Ni-VSe2/rGO by a simple solvothermal method. When it is used as a modified separator in Li-S batteries, the Ni-VSe2/rGO material with the doped defect and super-thin layered structure can greatly adsorb LiPSs and catalyze the conversion reaction of LiPSs, resulting in effectively reducing LiPSs diffusion and suppressing the shuttle effect. More importantly, the cathode-separator bonding body is first developed as a new strategy of electrode-separator integration in Li-S batteries, which not only could decrease the LiPSs dissolution and improve the catalysis performance of the functional separator as the upper current-collector, but also is good for the high sulfur loading and the low electrolyte/sulfur (E/S) ratio for high energy density Li-S batteries. When the Ni-VSe2/rGO-PP (polypropylene, Celgard 2400) modified separator is applied, the Li-S cell can retain 510.3 mA h g-1 capacity after 1190 cycles at 0.5C. In the electrode-separator integrated system, the Li-S cell can still maintain 552.9 mA h g-1 for 190 cycles at a sulfur loading 6.4 mg cm-2 and 4.9 mA h cm-2 for 100 cycles at a sulfur loading 7.0 mg cm-2. The experimental results indicate that both the doped defect engineering and the super-thin layered structure design might optimally be chosen to fabricate a new modified separator material, and especially, the electrode-separator integration strategy would open a practical way to promote the electrochemical behavior of Li-S batteries with high sulfur loading and low E/S ratio.
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Affiliation(s)
- Yumiao Han
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Meili Wang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China; College of Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Yutao Dong
- College of Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zihao Cheng
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Li
- College of Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Xueli Yan
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ying Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Jianmin Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
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8
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Nagaoka DA, Grasseschi D, Cadore AR, Fonsaca JES, Jawaid AM, Vaia RA, de Matos CJS. Redox exfoliated NbS 2: characterization, stability, and oxidation. Phys Chem Chem Phys 2023; 25:9559-9568. [PMID: 36939519 DOI: 10.1039/d2cp05197d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Niobium disulfide is a layered transition metal dichalcogenide that is being exploited as a two-dimensional material. Although it is a superconductor at low temperatures and demonstrates great potential to be applied as a catalyst or co-catalyst in hydrogen evolution reactions, only a few reports have demonstrated the synthesis of a few-layer NbS2. However, before applications can be pursued, it is essential to understand the main characteristics of the obtained material and its stability under an atmospheric environment. In this work, we conducted a thorough characterization of redox-exfoliated NbS2 nanoflakes regarding their structure and stability in an oxygen-rich environment. Structural, morphological, and spectroscopic characterization demonstrated different fingerprints associated with distinct oxidation processes. This led us to identify oxide species and analyse the stability of the redox exfoliated NbS2 nanosheets in air, suggesting the most likely reaction pathways during the NbS2 interaction with oxygen, which agrees with our density-functional theory results. The mastery over the stability of layered materials is of paramount importance to target future applications, mainly because the electronic properties of these materials are strongly affected by an oxidizing environment.
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Affiliation(s)
- Danilo A Nagaoka
- School of Engineering, Mackenzie Presbyterian University, Sao Paulo - 01302-907, Brazil. .,MackGraphe, Mackenzie Presbyterian Institute, São Paulo - 01302-907, Brazil
| | - Daniel Grasseschi
- Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro - 21941-909, Brazil
| | - Alisson R Cadore
- School of Engineering, Mackenzie Presbyterian University, Sao Paulo - 01302-907, Brazil.
| | - Jessica E S Fonsaca
- School of Engineering, Mackenzie Presbyterian University, Sao Paulo - 01302-907, Brazil. .,MackGraphe, Mackenzie Presbyterian Institute, São Paulo - 01302-907, Brazil
| | - Ali M Jawaid
- Materials and Manufacturing Directorate, Air Force Research Laboratories, Wright-Patterson AFB, Ohio 45433, USA
| | - Richard A Vaia
- Materials and Manufacturing Directorate, Air Force Research Laboratories, Wright-Patterson AFB, Ohio 45433, USA
| | - Christiano J S de Matos
- School of Engineering, Mackenzie Presbyterian University, Sao Paulo - 01302-907, Brazil. .,MackGraphe, Mackenzie Presbyterian Institute, São Paulo - 01302-907, Brazil
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9
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Busch RT, Sun L, Austin D, Jiang J, Miesle P, Susner MA, Conner BS, Jawaid A, Becks ST, Mahalingam K, Velez MA, Torsi R, Robinson JA, Rao R, Glavin NR, Vaia RA, Pachter R, Joshua Kennedy W, Vernon JP, Stevenson PR. Exfoliation procedure-dependent optical properties of solution deposited MoS 2 films. NPJ 2D MATERIALS AND APPLICATIONS 2023; 7:12. [PMID: 38665486 PMCID: PMC11041683 DOI: 10.1038/s41699-023-00376-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 02/10/2023] [Indexed: 04/28/2024]
Abstract
The development of high-precision large-area optical coatings and devices comprising low-dimensional materials hinges on scalable solution-based manufacturability with control over exfoliation procedure-dependent effects. As such, it is critical to understand the influence of technique-induced transition metal dichalcogenide (TMDC) optical properties that impact the design, performance, and integration of advanced optical coatings and devices. Here, we examine the optical properties of semiconducting MoS2 films from the exfoliation formulations of four prominent approaches: solvent-mediated exfoliation, chemical exfoliation with phase reconversion, redox exfoliation, and native redox exfoliation. The resulting MoS2 films exhibit distinct refractive indices (n), extinction coefficients (k), dielectric functions (ε1 and ε2), and absorption coefficients (α). For example, a large index contrast of Δn ≈ 2.3 is observed. These exfoliation procedures and related chemistries produce different exfoliated flake dimensions, chemical impurities, carrier doping, and lattice strain that influence the resulting optical properties. First-principles calculations further confirm the impact of lattice defects and doping characteristics on MoS2 optical properties. Overall, incomplete phase reconfiguration (from 1T to mixed crystalline 2H and amorphous phases), lattice vacancies, intraflake strain, and Mo oxidation largely contribute to the observed differences in the reported MoS2 optical properties. These findings highlight the need for controlled technique-induced effects as well as the opportunity for continued development of, and improvement to, liquid phase exfoliation methodologies. Such chemical and processing-induced effects present compelling routes to engineer exfoliated TMDC optical properties toward the development of next-generation high-performance mirrors, narrow bandpass filters, and wavelength-tailored absorbers.
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Affiliation(s)
- Robert T. Busch
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Lirong Sun
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- Azimuth Corporation, 2970 Presidential Drive, Suite 200, Beavercreek, OH 45324 USA
| | - Drake Austin
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Jie Jiang
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Paige Miesle
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Michael A. Susner
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Benjamin S. Conner
- National Research Council, 500 Fifth St. N.W., Washington, DC 20001 USA
- Sensors Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Ali Jawaid
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Shannon T. Becks
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Krishnamurthy Mahalingam
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Michael A. Velez
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
- UES, Inc., 4401 Dayton Xenia Road, Dayton, OH 45432 USA
| | - Riccardo Torsi
- Department of Materials Science and Engineering, Materials Research Institute, Center for Atomically Thin Multifunctional Coatings, The Pennsylvania State University, University Park, PA 16802 USA
| | - Joshua A. Robinson
- Department of Materials Science and Engineering, Materials Research Institute, Center for Atomically Thin Multifunctional Coatings, The Pennsylvania State University, University Park, PA 16802 USA
- Department of Chemistry, Department of Physics, Center for Atomically Thin Multifunctional Coatings, The Pennsylvania State University, University Park, PA 16802 USA
| | - Rahul Rao
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Nicholas R. Glavin
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Richard A. Vaia
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Ruth Pachter
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - W. Joshua Kennedy
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Jonathan P. Vernon
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
| | - Peter R. Stevenson
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45433 USA
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Efficient Preparation of Small-Sized Transition Metal Dichalcogenide Nanosheets by Polymer-Assisted Ball Milling. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227810. [PMID: 36431911 PMCID: PMC9694012 DOI: 10.3390/molecules27227810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Two-dimensional (2D) transition metal dichalcogenide nanosheets (TMDC NSs) have attracted growing interest due to their unique structure and properties. Although various methods have been developed to prepare TMDC NSs, there is still a great need for a novel strategy combining simplicity, generality, and high efficiency. In this study, we developed a novel polymer-assisted ball milling method for the efficient preparation of TMDC NSs with small sizes. The use of polymers can enhance the interaction of milling balls and TMDC materials, facilitate the exfoliation process, and prevent the exfoliated nanosheets from aggregating. The WSe2 NSs prepared by carboxymethyl cellulose sodium (CMC)-assisted ball milling have small lateral sizes (8~40 nm) with a high yield (~60%). The influence of the experimental conditions (polymer, milling time, and rotation speed) on the size and yield of the nanosheets was studied. Moreover, the present approach is also effective in producing other TMDC NSs, such as MoS2, WS2, and MoSe2. This study demonstrates that polymer-assisted ball milling is a simple, general, and effective method for the preparation of small-sized TMDC NSs.
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11
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Brune V, Hegemann C, Wilhelm M, Ates N, Mathur S. Molecular Precursors to Group IV Dichalcogenides MS2 (M = Ti, Zr, Hf). Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Veronika Brune
- University of Cologne: Universitat zu Koln Chemie Greinstraße 6 50939 Cologne GERMANY
| | | | | | | | - Sanjay Mathur
- Institut für Anorganische Chemie Universität zu Köln Anorganische Chemie Greinstr. 6 50939 Köln GERMANY
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12
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Manamel LT, Madam SC, Sagar S, Das BC. Electroforming-free nonvolatile resistive switching of redox-exfoliated MoS 2nanoflakes loaded polystyrene thin film with synaptic functionality. NANOTECHNOLOGY 2021; 32:35LT02. [PMID: 34038892 DOI: 10.1088/1361-6528/ac056e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Here, we report robust and highly reproducible nonvolatile resistive switching (RS) devices with artificial synaptic functionalities utilizing redox-exfoliated few-layered 2H-MoS2nanoflakes. Advantageous polar solvent compatibility of 2D MoS2from this method were utilized to fabricate thin film devices very easily and cost-effectively using polystyrene as matrix. Prominent RS property of polystyrene thin film devices with varying MoS2concentrations strongly favors electroforming-free operation. The conduction band position of 2D MoS2nanosheet in combination with the work functions of chosen electrodes looks alleviating to switch the current from low to high at a suitable positive bias voltage. We further confirmed the mechanism of charge transport through fitting the results with theoretical models, say injection-dominated Schottky emission model for low-conducting states and space-charge-limited current mechanism for the high-conducting state. Interestingly, a relatively high current On/Off ratio 102was recorded during the pump-probe testing to show resistive random-access memory (ReRAM) application. Finally, artificial synaptic functionalities- the building blocks of neuromorphic computing architectures is also illustrated by considering the robust RS property and ReRAM application.
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Affiliation(s)
- Litty Thomas Manamel
- eNDR Lab, School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, Kerala, India
| | - Swetha Chengala Madam
- eNDR Lab, School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, Kerala, India
| | - Srikrishna Sagar
- eNDR Lab, School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, Kerala, India
| | - Bikas C Das
- eNDR Lab, School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, Kerala, India
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13
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Silva-Neto ML, Maldonado M, de S Menezes L, de Araújo CB, Jawaid AM, Busch R, Ritter AJ, Vaia RA, Gomes ASL. Fifth-order optical nonlinear response of semiconducting 2D LTMD MoS 2. OPTICS LETTERS 2021; 46:226-229. [PMID: 33448993 DOI: 10.1364/ol.409578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
The effective fifth-order susceptibility, ${\chi}_{\rm eff}^{(5)}$, of two-dimensional (2D) semiconducting layered transition metal dichalcogenide (LTMD) molybdenum disulfide (${\rm MoS}_2$) is reported here for the first time, to the best of our knowledge. Using the $ Z $-scan technique with a laser operating at 800 nm, 1 kHz, 100 fs, we investigated the nonlinear behavior of ${\rm MoS}_2$ suspended in acetonitrile (concentration, 70 µg/ml). The effective nonlinear refractive index ${{n}_{4,{eff}}} = - ({7.6 \pm 0.5}) \times {10^{- 26}}\; {{\rm cm}^4}/{{\rm W}^2}$, proportional to ${\rm Re}{\chi}_{\rm eff}^{(5)}$, was measured for monolayer ${\rm MoS}_2$ nanoflakes, prepared by a modified redox exfoliation method. We also determined the value of the nonlinear refractive index ${{n}_2} = + ({4.8 \pm 0.5}) \times {10^{- 16}}\;{{\rm cm}^2}/{\rm W}$, which is related to the material's effective third-order optical susceptibility real part, ${Re\chi}_{\rm eff}^{(3)}$. For comparison, we also investigated the nonlinear response of tungsten disulfide (${\rm WS}_2$) monolayers, prepared by the same method and suspended in acetonitrile (concentration, 40 µg/ml), which only exhibited the third-order nonlinear effect in the same intensity range, up to ${120}\;{{{\rm GW}/{\rm cm}}^2}$. Nonlinear absorption was not observed in either ${\rm MoS}_2$ or ${\rm WS}_2$.
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14
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da Silva-Neto ML, Barbosa-Silva R, de Araújo CB, de Matos CJS, Jawaid AM, Ritter AJ, Vaia RA, Gomes ASL. Hyper-Rayleigh scattering in 2D redox exfoliated semi-metallic ZrTe 2 transition metal dichalcogenide. Phys Chem Chem Phys 2020; 22:27845-27849. [PMID: 33245737 DOI: 10.1039/d0cp04821f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nonlinear optical characterization of nanostructured layered transition metal dichalcogenides (LTMDs) is of fundamental interest for basic knowledge and applied purposes. In particular, second-order optical nonlinearities are the basis for second harmonic generation as well as sum or difference frequency generation and have been studied in some 2D TMDs, especially in those with a semiconducting character. Here we report, for the first time, on the second-order nonlinearity of the semi-metallic ZrTe2 monolayer in acetonitrile suspension (concentration of 4.9 × 1010 particles per cm3), synthesized via a modified redox exfoliation method and characterized using the Hyper-Rayleigh scattering technique in the nanosecond regime. The orientation-averaged first-hyperpolarizability was found to be β(2ω) = (7.0 ± 0.3) × 10-24 esu per ZrTe2 monolayer flake, the largest reported so far. Polarization-resolved measurements were performed in the monolayer suspension and indicate the dipolar origin of the generated incoherent second harmonic wave.
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Affiliation(s)
- Manoel L da Silva-Neto
- Graduate Program in Materials Science, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil
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15
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Reddy IVAK, Jornet JM, Baev A, Prasad PN. Extreme local field enhancement by hybrid epsilon-near-zero-plasmon mode in thin films of transparent conductive oxides. OPTICS LETTERS 2020; 45:5744-5747. [PMID: 33057274 DOI: 10.1364/ol.402647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Epsilon-near-zero (ENZ) materials display unique properties, and among them, large local field enhancement at ENZ frequency is of particular interest for many potential applications. In this Letter, we introduce the concept that a combination of epsilon-near-zero and surface plasmon polariton modes can be excited over an interface between a dielectric and a single ENZ layer in a specific frequency region, which can lead to extreme enhancement of local electric field. We demonstrate it with a systematic numerical simulation using finite element analysis and consider two configurations (Kretschmann configuration and a grating configuration), where an indium tin oxide (ITO) layer is sandwiched between two dielectric slabs. We confirm the formation of a hybrid mode at the ITO-dielectric interface at the wavelength of ENZ, as the ITO layer thickness reduces. The hybrid mode provides both high confinement and long propagation distance, which makes it more attractive for many applications than just a pure ENZ mode.
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16
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Pincheira PIR, da Silva Neto ML, Maldonado M, de Araújo CB, Jawaid AM, Busch R, Ritter AJ, Vaia RA, Gomes ASL. Monolayer 2D ZrTe 2 transition metal dichalcogenide as nanoscatter for random laser action. NANOSCALE 2020; 12:15706-15710. [PMID: 32672308 DOI: 10.1039/d0nr03152f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We demonstrate random laser emission from Rhodamine 6G with ZrTe2 transition metal dichalcogenide (TMD) as nanoscatters, both in powder and 2D nanoflakes liquid suspension. The 2D semimetal ZrTe2 was synthesized by a modified redox exfoliation method to provide single layer TMD, which was employed for the first time as the scatter medium to provide feedback in an organic gain medium random laser. In order to exploit random laser emission and its threshold value, replica symmetry breaking leading to a photonic paramagnetic to photonic spin glass transition in both 2D and 3D (powder) ZrTe2 was demonstrated. One important aspect of mixing organic dyes with ZrTe2 is that there is no chemical reaction leading to dye degradation, demonstrated by operating over more than 2 hours of pulsed (5 Hz) random laser emission.
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Affiliation(s)
- Pablo I R Pincheira
- Departamento de Ciencias Fisicas, Universidad de La Frontera, Temuco, Chile.
| | - Manoel L da Silva Neto
- Graduate Program in materials Science, Universidade Federal de Pernambuco, 50670-901, Recife-PE, Brazil
| | - Melissa Maldonado
- Departamento de Física, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE 50670-901, Brazil.
| | - Cid B de Araújo
- Graduate Program in materials Science, Universidade Federal de Pernambuco, 50670-901, Recife-PE, Brazil and Departamento de Física, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE 50670-901, Brazil.
| | - Ali M Jawaid
- Materials and Manofacturing Directorate, Air Force Research Laboratories, 45433, Ohio, USA
| | - Robert Busch
- Materials and Manofacturing Directorate, Air Force Research Laboratories, 45433, Ohio, USA
| | - Allyson J Ritter
- Materials and Manofacturing Directorate, Air Force Research Laboratories, 45433, Ohio, USA
| | - Richard A Vaia
- Materials and Manofacturing Directorate, Air Force Research Laboratories, 45433, Ohio, USA
| | - Anderson S L Gomes
- Departamento de Física, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE 50670-901, Brazil.
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17
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Park HJ, Jeong JM, Yoon JH, Son SG, Kim YK, Kim DH, Lee KG, Choi BG. Preparation of ultrathin defect-free graphene sheets from graphite via fluidic delamination for solid-contact ion-to-electron transducers in potentiometric sensors. J Colloid Interface Sci 2020; 560:817-824. [DOI: 10.1016/j.jcis.2019.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 02/01/2023]
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18
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Bolotsky A, Butler D, Dong C, Gerace K, Glavin NR, Muratore C, Robinson JA, Ebrahimi A. Two-Dimensional Materials in Biosensing and Healthcare: From In Vitro Diagnostics to Optogenetics and Beyond. ACS NANO 2019; 13:9781-9810. [PMID: 31430131 DOI: 10.1021/acsnano.9b03632] [Citation(s) in RCA: 151] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Since the isolation of graphene in 2004, there has been an exponentially growing number of reports on layered two-dimensional (2D) materials for applications ranging from protective coatings to biochemical sensing. Due to the exceptional, and often tunable, electrical, optical, electrochemical, and physical properties of these materials, they can serve as the active sensing element or a supporting substrate for diverse healthcare applications. In this review, we provide a survey of the recent reports on the applications of 2D materials in biosensing and other emerging healthcare areas, ranging from wearable technologies to optogenetics to neural interfacing. Specifically, this review provides (i) a holistic evaluation of relevant material properties across a wide range of 2D systems, (ii) a comparison of 2D material-based biosensors to the state-of-the-art, (iii) relevant material synthesis approaches specifically reported for healthcare applications, and (iv) the technological considerations to facilitate mass production and commercialization.
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Affiliation(s)
| | | | - Chengye Dong
- State Key Lab of Electrical Insulation and Power Equipment , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , People's Republic of China
| | | | - Nicholas R Glavin
- Materials and Manufacturing Directorate , Air Force Research Laboratory , WPAFB , Ohio 45433 , United States
| | - Christopher Muratore
- Department of Chemical and Materials Engineering , University of Dayton , Dayton , Ohio 45469 , United States
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19
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Mendes RG, Pang J, Bachmatiuk A, Ta HQ, Zhao L, Gemming T, Fu L, Liu Z, Rümmeli MH. Electron-Driven In Situ Transmission Electron Microscopy of 2D Transition Metal Dichalcogenides and Their 2D Heterostructures. ACS NANO 2019; 13:978-995. [PMID: 30673226 DOI: 10.1021/acsnano.8b08079] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Investigations on monolayered transition metal dichalcogenides (TMDs) and TMD heterostructures have been steadily increasing over the past years due to their potential application in a wide variety of fields such as microelectronics, sensors, batteries, solar cells, and supercapacitors, among others. The present work focuses on the characterization of TMDs using transmission electron microscopy, which allows not only static atomic resolution but also investigations into the dynamic behavior of atoms within such materials. Herein, we present a body of recent research from the various techniques available in the transmission electron microscope to structurally and analytically characterize layered TMDs and briefly compare the advantages of TEM with other characterization techniques. Whereas both static and dynamic aspects are presented, special emphasis is given to studies on the electron-driven in situ dynamic aspects of these materials while under investigation in a transmission electron microscope. The collection of the presented results points to a future prospect where electron-driven nanomanipulation may be routinely used not only in the understanding of fundamental properties of TMDs but also in the electron beam engineering of nanocircuits and nanodevices.
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Affiliation(s)
- Rafael G Mendes
- Leibniz Institute for Solid State and Materials Research Dresden , P.O. Box 270116, Dresden D-01171 , Germany
| | - Jinbo Pang
- Leibniz Institute for Solid State and Materials Research Dresden , P.O. Box 270116, Dresden D-01171 , Germany
| | - Alicja Bachmatiuk
- Leibniz Institute for Solid State and Materials Research Dresden , P.O. Box 270116, Dresden D-01171 , Germany
- Centre of Polymer and Carbon Materials , Polish Academy of Sciences , M. Curie-Skłodowskiej 34 , Zabrze 41-819 , Poland
| | | | | | - Thomas Gemming
- Leibniz Institute for Solid State and Materials Research Dresden , P.O. Box 270116, Dresden D-01171 , Germany
| | - Lei Fu
- College of Chemistry and Molecular Science , Wuhan University , Wuhan 430072 , China
| | - Zhongfan Liu
- Center for Nanochemistry, Beijing Science and Engineering Centre for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Mark H Rümmeli
- Leibniz Institute for Solid State and Materials Research Dresden , P.O. Box 270116, Dresden D-01171 , Germany
- Centre of Polymer and Carbon Materials , Polish Academy of Sciences , M. Curie-Skłodowskiej 34 , Zabrze 41-819 , Poland
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20
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21
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Hong SB, Jeong JM, Kang HG, Seo D, Cha Y, Jeon H, Lee GY, Irshad M, Kim DH, Hwang SY, Kim JW, Choi BG. Fast and Scalable Hydrodynamic Synthesis of MnO 2/Defect-Free Graphene Nanocomposites with High Rate Capability and Long Cycle Life. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35250-35259. [PMID: 30289681 DOI: 10.1021/acsami.8b12894] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The integration of metal oxides and carbon materials provides a great potential for enhancing the high energy and power densities of supercapacitors, but the rational design and scalable fabrication of such composite materials still remain a challenge. Herein, we report a fast, scalable, and one-pot hydrodynamic synthesis for preparing ion conductive and defect-free graphene from graphite and MnO2/graphene nanocomposites. The use of this hydrodynamic method using Taylor-Couette flow allows us to efficiently fast shear-exfoliate graphite into large quantities of high-quality graphene sheets. Deposition of MnO2 on graphene is subsequently performed in a fluidic reactor within 10 min. The prepared MnO2/graphene nanocomposite shows outstanding electrochemical performances, such as a high specific capacitance of 679 F/g at 25 mV/s, a high rate capability of 74.7% retention at an extremely high rate of 1000 mV/s, and an excellent cycling characteristic (∼94.7% retention over 20 000 cycles). An asymmetric supercapacitor device is fabricated by assembling an anode of graphene and a cathode of MnO2/graphene, which resulted in high energy (35.2 W h/kg) and power (7.4 kW/kg) densities (accounting for the mass of both electrodes and the electrolyte) with a high rate capability and long cycle life.
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Affiliation(s)
- Seok Bok Hong
- Department of Chemical Engineering , Kangwon National University , 346 Joongang-ro , Samcheok , Gangwon-do 25913 , Republic of Korea
| | - Jae-Min Jeong
- Department of Chemical & Biomolecular Engineering , KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Heon Gyu Kang
- Department of Chemical Engineering , Kangwon National University , 346 Joongang-ro , Samcheok , Gangwon-do 25913 , Republic of Korea
| | - Donghyuk Seo
- Department of Chemical & Biomolecular Engineering , KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Younghyun Cha
- Department of Chemical & Biomolecular Engineering , KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Hyeonyeol Jeon
- Research Center for Bio-Based Chemistry , Korea Research Institute of Chemical Technology (KRICT) , Ulsan 44429 , Republic of Korea
| | - Geun Young Lee
- Department of Chemical Engineering , Kangwon National University , 346 Joongang-ro , Samcheok , Gangwon-do 25913 , Republic of Korea
| | - Mobina Irshad
- Department of Chemical Engineering , Kangwon National University , 346 Joongang-ro , Samcheok , Gangwon-do 25913 , Republic of Korea
| | - Do Hyun Kim
- Department of Chemical & Biomolecular Engineering , KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Sung Yeon Hwang
- Research Center for Bio-Based Chemistry , Korea Research Institute of Chemical Technology (KRICT) , Ulsan 44429 , Republic of Korea
- Advanced Materials and Chemical Engineering , University of Science and Technology (UST) , Daejeon 34113 , Republic of Korea
| | - Jung Won Kim
- Department of Chemical Engineering , Kangwon National University , 346 Joongang-ro , Samcheok , Gangwon-do 25913 , Republic of Korea
| | - Bong Gill Choi
- Department of Chemical Engineering , Kangwon National University , 346 Joongang-ro , Samcheok , Gangwon-do 25913 , Republic of Korea
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Wei P, Luo Q, Edgehouse KJ, Hemmingsen CM, Rodier BJ, Pentzer EB. 2D Particles at Fluid-Fluid Interfaces: Assembly and Templating of Hybrid Structures for Advanced Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:21765-21781. [PMID: 29897230 DOI: 10.1021/acsami.8b07178] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Fluid-fluid interfaces have widespread applications in personal care products, the food industry, oil recovery, mineral processes, etc. and are also important and versatile platforms for generating advanced materials. In Pickering emulsions, particles stabilize the fluid-fluid interface, and their presence reduces the interfacial energy between the two fluids. To date, most Pickering emulsions stabilized by 2D particles make use of clay platelets or GO nanosheets. These systems have been used to template higher order hybrid, functional materials, most commonly, armored polymer particles, capsules, and Janus nanosheets. This review discusses the experimental and computational study of the assembly of sheet-like 2D particles at fluid-fluid interfaces, with an emphasis on the impact of chemical composition, and the use of these assemblies to prepare composite structures of dissimilar materials. The review culminates in a perspective on the future of Pickering emulsions using 2D particle surfactants, including new chemical modification and types of particles as well as the realization of properties and applications not possible with currently accessible systems, such as lubricants, porous structures, delivery, coatings, etc.
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Affiliation(s)
- Peiran Wei
- Department of Chemistry , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Qinmo Luo
- Department of Chemistry , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Katelynn J Edgehouse
- Department of Chemistry , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Christina M Hemmingsen
- Department of Chemistry , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Bradley J Rodier
- Department of Chemistry , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
| | - Emily B Pentzer
- Department of Chemistry , Case Western Reserve University , 10900 Euclid Avenue , Cleveland , Ohio 44106 , United States
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23
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Samadi M, Sarikhani N, Zirak M, Zhang H, Zhang HL, Moshfegh AZ. Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives. NANOSCALE HORIZONS 2018; 3:90-204. [PMID: 32254071 DOI: 10.1039/c7nh00137a] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Group 6 transition metal dichalcogenides (G6-TMDs), most notably MoS2, MoSe2, MoTe2, WS2 and WSe2, constitute an important class of materials with a layered crystal structure. Various types of G6-TMD nanomaterials, such as nanosheets, nanotubes and quantum dot nano-objects and flower-like nanostructures, have been synthesized. High thermodynamic stability under ambient conditions, even in atomically thin form, made nanosheets of these inorganic semiconductors a valuable asset in the existing library of two-dimensional (2D) materials, along with the well-known semimetallic graphene and insulating hexagonal boron nitride. G6-TMDs generally possess an appropriate bandgap (1-2 eV) which is tunable by size and dimensionality and changes from indirect to direct in monolayer nanosheets, intriguing for (opto)electronic, sensing, and solar energy harvesting applications. Moreover, rich intercalation chemistry and abundance of catalytically active edge sites make them promising for fabrication of novel energy storage devices and advanced catalysts. In this review, we provide an overview on all aspects of the basic science, physicochemical properties and characterization techniques as well as all existing production methods and applications of G6-TMD nanomaterials in a comprehensive yet concise treatment. Particular emphasis is placed on establishing a linkage between the features of production methods and the specific needs of rapidly growing applications of G6-TMDs to develop a production-application selection guide. Based on this selection guide, a framework is suggested for future research on how to bridge existing knowledge gaps and improve current production methods towards technological application of G6-TMD nanomaterials.
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Affiliation(s)
- Morasae Samadi
- Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran.
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Purcell-Milton F, McKenna R, Brennan LJ, Cullen CP, Guillemeney L, Tepliakov NV, Baimuratov AS, Rukhlenko ID, Perova TS, Duesberg GS, Baranov AV, Fedorov AV, Gun'ko YK. Induction of Chirality in Two-Dimensional Nanomaterials: Chiral 2D MoS 2 Nanostructures. ACS NANO 2018; 12:954-964. [PMID: 29338193 DOI: 10.1021/acsnano.7b06691] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Two-dimensional (2D) nanomaterials have been intensively investigated due to their interesting properties and range of potential applications. Although most research has focused on graphene, atomic layered transition metal dichalcogenides (TMDs) and particularly MoS2 have gathered much deserved attention recently. Here, we report the induction of chirality into 2D chiral nanomaterials by carrying out liquid exfoliation of MoS2 in the presence of chiral ligands (cysteine and penicillamine) in water. This processing resulted in exfoliated chiral 2D MoS2 nanosheets showing strong circular dichroism signals, which were far past the onset of the original chiral ligand signals. Using theoretical modeling, we demonstrated that the chiral nature of MoS2 nanosheets is related to the presence of chiral ligands causing preferential folding of the MoS2 sheets. There was an excellent match between the theoretically calculated and experimental spectra. We believe that, due to their high aspect ratio planar morphology, chiral 2D nanomaterials could offer great opportunities for the development of chiroptical sensors, materials, and devices for valleytronics and other potential applications. In addition, chirality plays a key role in many chemical and biological systems, with chiral molecules and materials critical for the further development of biopharmaceuticals and fine chemicals, and this research therefore should have a strong impact on relevant areas of science and technology such as nanobiotechnology, nanomedicine, and nanotoxicology.
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Chen K, Ding SJ, Luo ZJ, Pan GM, Wang JH, Liu J, Zhou L, Wang QQ. Largely enhanced photocatalytic activity of Au/XS 2/Au (X = Re, Mo) antenna-reactor hybrids: charge and energy transfer. NANOSCALE 2018; 10:4130-4137. [PMID: 29436547 DOI: 10.1039/c7nr09362d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An antenna-reactor hybrid coupling plasmonic antenna with catalytic nanoparticles is a new strategy to optimize photocatalytic activity. Herein, we have rationally proposed a Au/XS2/Au (X = Re, Mo) antenna reactor, which has a large Au core as the antenna and small satellite Au nanoparticles as the reactor separated by an ultrathin two-dimensional transition-metal dichalcogenide XS2 shell (∼2.6 nm). Due to efficient charge transfer across the XS2 shell as well as energy transfer via coupling of the Au antenna and Au reactor, the photocatalytic activity has been largely enhanced: Au/ReS2/Au exhibits a 3.59-fold enhancement, whereas Au/MoS2/Au exhibits a 2.66-fold enhancement as compared to that of the sum of the three individual components. The different enhancement in the Au/ReS2/Au and Au/MoS2/Au antenna-reactor hybrid is related to the competition and cooperation of charge and energy transfer. These results indicate the great potential of the Au/XS2/Au antenna-reactor hybrid for the development of highly efficient plasmonic photocatalysts.
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Affiliation(s)
- Kai Chen
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, P. R. China.
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26
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Li Y, Yin X, Wu W. Preparation of Few-Layer MoS2 Nanosheets via an Efficient Shearing Exfoliation Method. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04087] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yuewei Li
- Research Center of the Ministry of
Education for High Gravity of Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xianglu Yin
- Research Center of the Ministry of
Education for High Gravity of Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Wu
- Research Center of the Ministry of
Education for High Gravity of Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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27
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Xu D, Xu P, Zhu Y, Peng W, Li Y, Zhang G, Zhang F, Mallouk TE, Fan X. High Yield Exfoliation of WS 2 Crystals into 1-2 Layer Semiconducting Nanosheets and Efficient Photocatalytic Hydrogen Evolution from WS 2/CdS Nanorod Composites. ACS APPLIED MATERIALS & INTERFACES 2018; 10:2810-2818. [PMID: 29303245 DOI: 10.1021/acsami.7b15614] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Monolayer WS2 has interesting properties as a direct bandgap semiconductor, photocatalyst, and electrocatalyst, but it is still a significant challenge to prepare this material in colloidal form by liquid-phase exfoliation (LPE). Here, we report the preparation of 1-2 layer semiconducting WS2 nanosheets in a yield of 18-22 wt % by a modified LPE method that involves preintercalation with substoichometric quantities of n-butyllithium. The exfoliated WS2 nanosheeets are n-type, have a bandgap of ∼1.78 eV, and act as a cocatalyst with CdS nanorods in photocatalytic hydrogen evolution using lactate as a sacrificial electron donor. Up to a 26-fold increase in H2 evolution rate was observed with WS2/CdS hybrids compared with their pure CdS counterpart, and an absorbed photon quantum yield (AQE) of >60% was measured with the optimized photocatalyst.
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Affiliation(s)
- Danyun Xu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Pengtao Xu
- Departments of Chemistry, Biochemistry and Molecular Biology, Physics, and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University , University Park, Pennsylvnia 16802, United States
| | - Yuanzhi Zhu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Wenchao Peng
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Yang Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Guoliang Zhang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Fengbao Zhang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
| | - Thomas E Mallouk
- Departments of Chemistry, Biochemistry and Molecular Biology, Physics, and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University , University Park, Pennsylvnia 16802, United States
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, China
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28
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Gong L, Yan L, Zhou R, Xie J, Wu W, Gu Z. Two-dimensional transition metal dichalcogenide nanomaterials for combination cancer therapy. J Mater Chem B 2017; 5:1873-1895. [DOI: 10.1039/c7tb00195a] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this review, we mainly summarize the latest advances in the utilization of 2D TMDCs for PTT combination cancer therapy and imaging-guided cancer combination therapy, as well as their toxicity bothin vitroandin vivo.
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Affiliation(s)
- Linji Gong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Liang Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Ruyi Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Jiani Xie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Wei Wu
- Southwest Hospital/Southwest Eye Hospital
- Third Military Medical University
- Chong Qing
- China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
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