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Автор: Grafiati
Опубліковано: 6 вересня 2023

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1

Mohd Halim, Siti Nabilah, Fauzan Ahmad, Muhammad Quisar Lokman, Husni Hani Jameela Sapingi, Mohamad Fariz Mohamad Taib, Wan Mohd Fazli Wan Nawawi, Hafizal Yahaya, Mohd Azizi Abdul Rahman, Suhaidi Shafie, and Sulaiman Wadi Harun. "First Principles Study and Experimental Investigation of Graphene-Molybdenum Disulphide Nanocomposites Based Passive Saturable Absorber." Photonics 9, no. 10 (September 28, 2022): 704. http://dx.doi.org/10.3390/photonics9100704.

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Анотація:
Research on hybrid graphene with other two-dimensional materials has gained considerable attention owing to their potential applications beyond single components. Through our first principles analysis via density functional theory, graphene-molybdenum disulphide (MoS2) demonstrated a band gap opening by 2 meV, from gapless graphene when MoS2 layer is introduced into the structure. The simulated graphene-MoS2 has a direct band gap situated at K point of Brillouin zone with preserved Dirac properties of graphene. The experimental studies on graphene-MoS2 also have been performed by preparing graphene-MoS2-chitin nanocomposite through facile liquid-phase exfoliation method. Apart from energy gap using Tauc relation, the physical morphology and nonlinear properties of the material were systematically characterized. Graphene-MoS2-chitin exhibits a modulation depth of 10.5%, which is lower than individual graphene but higher than individual MoS2. Further investigation on the material’s performance was done by integrating the fabricated film into Erbium-doped fiber laser. Stable nanosecond pulse laser operation was realized with graphene-MoS2-chitin hybrid saturable absorber. The pulse width was measured to be 156.4 ns with repetition rate of 1.89 MHz, corresponding to a peak power of 56.13 mW and pulse energy of 8.78 nJ.
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2

Bui, Hoa, Nguyen Duc Lam, Bui Xuan Khuyen, Bui Son Tung, Man Hoai Nam, Nguyen Thi Ngoc Anh, Do Chi Linh, Duong Thi Huong, and Pham Thi San. "Synthesis and characterization of in-situ MoS2-graphene hybrid nanostructured material." Journal of Military Science and Technology, no. 81 (August 26, 2022): 122–27. http://dx.doi.org/10.54939/1859-1043.j.mst.81.2022.122-127.

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Анотація:
Nowadays, it has been challenging to develop novel techniques and synthesis processes for hybrid two-dimensional materials. Hence, this research presents an innovative technique for the fabrication of MoS2-Graphene (MoS2-Gr) hybrid nanostructured materials. The graphene was effectively generated in-situ and incorporated into the interlayer spacing of MoS2, which was synthesized by using a co-precipitation process with diethyl glycol as the solvent, followed by annealing the as-synthesized MoS2 at 800 oC for two hours in an inert atmosphere. The integrated graphene enhanced the width of MoS2 interlayers, exposing a substantial concentration of active edge sites in the hybrid material, according to SEM, XRD, HR-TEM, and other characterizations. This research might lead to the development of viable hybrid structured materials for various applications. In addition, this study outlines a novel advanced approach for creating hybrid 2D nanostructured materials with superior characteristics.
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3

Davami, Amir, and Mohammad Abadi. "Influence of Stack Hybrid Configuration of MoS2 and Graphene on the Performance of Surface Plasmon Resonance Biosensor." Jordan Journal of Electrical Engineering 8, no. 4 (2022): 365. http://dx.doi.org/10.5455/jjee.204-1658669063.

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This paper investigates the influence of various configurations and flakes of: i) graphene, ii) graphene/MoS2/graphene and iii) MoS2/graphene/MoS2 over a thin layer of gold on the performance of a surface plasmon resonance (SPR) biosensor. The reflectance curves of the proposed SPR biosensor are obtained, analyzed and compared for different combinations and thicknesses of the biosensors’ layers in refractive indices (RI) of 1 and 1.02, resembling an air and a bacterial medium, respectively. An in-depth analysis based on finite difference time domain method is performed to describe the sensor response considering sensitivity, full width at half maximum and minimum reflectance. The obtained results show that the sensitivity of the biosensor with a 50 nm Au and a 5 nm TiO2 (as the adhesive layer between the Au- layer and the prism) is equal to 61°/RIU. In order to increase further the sensitivity, different stacks and thicknesses of MoS2/graphene/MoS2 and graphene/MoS2/graphene configurations on the Au layer are added. The achieved outcomes reveal that the sensitivity is improved for a monolayer of MoS2 (1L_MoS2) sandwiched between double layers of graphene (2L_G) on 50 nm Au and 5 nm TiO2 (1L_MoS2/2L_G/1L_MoS2/50nmAu/5nmTiO2/Prism-BK7). This combination yields a sensitivity of 71.5 °/RIU for RI changes in the sensing medium (Δn) of 0.02 with a great detection accuracy of 0.33. We hope that – based on the outcomes of this investigation - the proposed structures can open new windows to improve the SPR biosensor detection of biological species.
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4

Maniadaki, Aristea E., and Georgios Kopidakis. "Hydrogen on hybrid MoS2 /graphene nanostructures." physica status solidi (RRL) - Rapid Research Letters 10, no. 6 (May 18, 2016): 453–57. http://dx.doi.org/10.1002/pssr.201600060.

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5

Min, Misook, Gustavo A. Saenz, and Anupama B. Kaul. "Optoelectronic properties of graphene quantum dots with molybdenum disulfide." MRS Advances 4, no. 10 (2019): 615–20. http://dx.doi.org/10.1557/adv.2019.50.

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Анотація:
ABSTRACTThe presence of a direct optical bandgap in the transition metal dichalcogenide (TMD) layers leads to promising applications in optoelectronic devices such as phototransistors and photodetectors. These devices are commonly fabricated using few-layer and monolayer MoS2 sheets obtained using mechanical exfoliation or chemical vapor deposition techniques. The hybrid structure of quantum dots (QDs) and 2D materials has been investigated to provide outstanding properties for various applications. Herein we report the fabrication of a hybrid QDs/MoS2 photodetector consisting of graphene quantum dots (GQDs) and multilayer MoS2 sheets. The hybrid GQDs and MoS2 films are characterized by atomic force microscopy (AFM); additionally, the I-V characteristics are measured by two-point probe station.
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6

Bojarska, Zuzanna, Marta Mazurkiewicz-Pawlicka, Stanisław Gierlotka, and Łukasz Makowski. "Production and Properties of Molybdenum Disulfide/Graphene Oxide Hybrid Nanostructures for Catalytic Applications." Nanomaterials 10, no. 9 (September 17, 2020): 1865. http://dx.doi.org/10.3390/nano10091865.

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Анотація:
Molybdenum disulfide (MoS2) can be an excellent candidate for being combined with carbon nanomaterials to obtain new hybrid nanostructures with outstanding properties, including higher catalytic activity. The aim of the conducted research was to develop the novel production method of hybrid nanostructures formed from MoS2 and graphene oxide (GO). The nanostructures were synthesized in different weight ratios and in two types of reactors (i.e., impinging jet and semi-batch reactors). Physicochemical analysis of the obtained materials was carried out, using various analytical techniques: particle size distribution (PSD), thermogravimetric analysis (TGA), FT-IR spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Due to the potential application of materials based on MoS2 as the catalyst for hydrogen evolution reaction, linear sweep voltammetry (LSV) of the commercial MoS2, synthesized MoS2 and the obtained hybrid nanostructures was performed using a three-electrode system. The results show that the developed synthesis of hybrid MoS2/GO nanostructures in continuous reactors is a novel and facile method for obtaining products with desired properties. The hybrid nanostructures have shown better electrochemical properties and higher onset potentials compared to MoS2 nanoparticles. The results indicate that the addition of carbon nanomaterials during the synthesis improves the activity and stability of the MoS2 nanoparticles.
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7

Sakthivel, R., A. Geetha, B. A. Anandh, V. Jagadeesan, A. Shankar Ganesh, and J. Dineshkumar. "Design of MoS2/graphene heterostructure thin film sensors for high performance NO2 gas sensor applications." Journal of Physics: Conference Series 2070, no. 1 (November 1, 2021): 012131. http://dx.doi.org/10.1088/1742-6596/2070/1/012131.

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Abstract In this paper, we fabricate a large-area chemiresitive type MoS2/graphene films sensor is grown by spray pyrolysis technique. The prepared sensor films were characterization by XRD, SEM, TEM Raman and BET analysis. The synergistic effect between MoS2 and graphene through the CVD method produces such a hierarchical layer-by-layer assembly of the thin film structure. MoS2/graphene hybrid films not only show enhanced NO2 sensitivity compared to NO2 sensitivity alone. Graphene or MoS2 films, but they also exhibit characteristics of rapid response and strong reproducibility. Selectiveness and stability findings demonstrate the outstanding sensing properties of the MoS2 thin film sensor. The MoS2/G showed higher sensitivity (81%) towards NO2 gas at the concentration of 1000 ppm followed by graphene (22 %) and MoS2 (45 %) based sensors in sequence. The MoS2/G sensor also exhibits fast response (12 s) and recovery time (17 s) than other sensor samples. The concept of operation and sensing mechanism behind their impressive results has also been studied in depth. The effect of humidity on the performance of gas sensing was also discussed in the point of practical device applications.
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8

Chothe, Ujjwala, Chitra Ugale, Milind Kulkarni, and Bharat Kale. "Solid-State Synthesis of Layered MoS2 Nanosheets with Graphene for Sodium-Ion Batteries." Crystals 11, no. 6 (June 10, 2021): 660. http://dx.doi.org/10.3390/cryst11060660.

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Анотація:
Sodium-ion batteries have potential as energy-storage devices owing to an abundant source with low cost. However, most electrode materials still suffer from poor conductivity, sluggish kinetics, and huge volume variation. It is still challenging to explore apt electrode materials for sodium-ion battery applications to avoid the pulverization of electrodes induced by reversible intercalation of large sodium ions. Herein, we report a single-step facile, scalable, low-cost, and high-yield approach to prepare a hybrid material; i.e., MoS2 with graphene (MoS2-G). Due to the space-confined effect, thin-layered MoS2 nanosheets with a loose stacking feature are anchored with the graphene sheets. The semienclosed hybrid architecture of the electrode enhances the integrity and stability during the intercalation of Na+ ions. Particularly, during galvanostatic study the assembled Na-ion cell delivered a specific capacity of 420 mAhg−1 at 50 mAg−1, and 172 mAhg−1 at current density 200 mAg−1 after 200 cycles. The MoS2-G hybrid excels in performance due to residual oxygen groups in graphene, which improves the electronic conductivity and decreases the Na+ diffusion barrier during electrochemical reaction, in comparison with a pristine one.
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9

Cai, Haoyuan, Mengwei Wang, Zhuohui Wu, Jing Liu, and Xiaoping Wang. "Performance Enhancement of SPR Biosensor Using Graphene–MoS2 Hybrid Structure." Nanomaterials 12, no. 13 (June 28, 2022): 2219. http://dx.doi.org/10.3390/nano12132219.

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Анотація:
We investigate a high-sensitivity surface plasmon resonance (SPR) biosensor consisting of a Au layer, four-layer MoS2, and monolayer graphene. The numerical simulations, by the transfer matrix method (TMM), demonstrate the sensor has a maximum sensitivity of 282°/RIU, which is approximately 2 times greater than the conventional Au-based SPR sensor. The finite difference time domain (FDTD) indicates that the presence of MoS2 film generates a strong surface electric field and enhances the sensitivity of the proposed SPR sensor. In addition, the influence of the number of MoS2 layers on the sensitivity of the proposed sensor is investigated by simulations and experiments. In the experiment, MoS2 and graphene films are transferred on the Au-based substrate by the PMMA-based wet transfer method, and the fabricated samples are characterized by Raman spectroscopy. Furthermore, the fabricated sensors with the Kretschmann configuration are used to detect okadaic acid (OA). The okadaic acid–bovine serum albumin bioconjugate (OA-BSA) is immobilized on the graphene layer of the sensors to develop a competitive inhibition immunoassay. The results show that the sensor has a very low limit of detection (LOD) of 1.18 ng/mL for OA, which is about 22.6 times lower than that of a conventional Au biosensor. We believe that such a high-sensitivity SPR biosensor has potential applications for clinical diagnosis and immunoassays.
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10

Al-Khaldi, Amal, Mohamed M. Fadlallah, Fawziah Alhajri, and Ahmed A. Maarouf. "Hybrid G/BN@2H-MoS2 Nanomaterial Composites: Structural, Electronic and Molecular Adsorption Properties." Nanomaterials 12, no. 24 (December 7, 2022): 4351. http://dx.doi.org/10.3390/nano12244351.

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Анотація:
Hybrid structures often possess superior properties to those of their component materials. This arises from changes in the structural or physical properties of the new materials. Here, we investigate the structural, electronic, and gas-adsorption properties of hybrid structures made from graphene/hexagonal boron nitride and 2H-molybdenum disulfide (G/BN@MoS2) monolayers. We consider hybrid systems in which the G/BN patch is at the Mo plane (model I) and the S plane (model II). We find that the implanted hexagon of G or BN in MoS2 alters its electronic properties: G@MoS2 (I,II) are metallic, while BN@MoS2 (I) is an n-type conducting and BN@MoS2 (II) is semiconducting. We study the molecular adsorption of some diatomic gases (H2, OH, N2, NO, CO), triatomic gases (CO2, NO2, H2S, SO2), and polyatomic gases (COOH, CH4, and NH3) on our hybrid structures while considering multiple initial adsorption sites. Our results suggest that the hybrid systems may be suitable materials for some applications: G@MOS2 (I) for oxygen reduction reactions, BN@MoS2 (I,II) for NH3-based hydrogen production, and G@MoS2 (I) and BN@MoS2 (I,II) for filtration of No, Co, SO2, H2S, and NO2.
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11

Zhang, Zhongwei, Yuee Xie, Qing Peng, and Yuanping Chen. "Thermal transport in MoS2/Graphene hybrid nanosheets." Nanotechnology 26, no. 37 (August 27, 2015): 375402. http://dx.doi.org/10.1088/0957-4484/26/37/375402.

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12

Meng, Zhaolei, Xiaojian He, Song Han, and Zijian Hu. "Three-Dimensional MoS2/Graphene Hybrid Aerogel as Free-Standing, High-Performance Electrode for Supercapacitor." Nano 15, no. 05 (May 2020): 2050062. http://dx.doi.org/10.1142/s1793292020500629.

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Анотація:
Carbon materials are generally employed as supercapacitor electrodes due to their low- cost, high-chemical stability and environmental friendliness. However, the design of carbon structures with large surface area and controllable porous structure remains a daunt challenge. In this work, a three-dimensional (3D) hybrid aerogel with different contents of MoS2 nanosheets in 3D graphene aerogel (MoS2-GA) was synthesized through a facial hydrothermal process. The influences of MoS2 content on microstructure and subsequently on electrochemical properties of MoS2-GA are systematically investigated and an optimized mass ratio with MoS2: GA of 1:2 is chosen to achieve high mechanical robustness and outstanding electrochemical performance in the hybrid structure. Due to the large specific surface area, porous structure and continuous charge transfer network, such MoS2-GA electrodes exhibit high specific capacitance, good rate capability and excellent cyclic stability, showing great potential in large-scale and low-cost fabrication of high-performance supercapacitors.
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13

Chen, Ying, and Wen Chao Peng. "Synthesis of MoS2/Graphene Hybrid for Electrochemical Detection and Catalytic Reduction of 4-Nitrophenol." Applied Mechanics and Materials 872 (October 2017): 149–54. http://dx.doi.org/10.4028/www.scientific.net/amm.872.149.

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Large amounts of nitroaromatic compounds are discharged into the natural environment, leading to environmental pollution. The detection and removal of nitroaromatic compounds are therefore important environmental issues. In this study, the hybrid of molybdenum disulfide (MoS2) and graphene (GR) was synthesized using a facile hydrothermal method. Sodium molybdate was selected as the precursors for MoS2. While thiourea was used as reductant and sulfur sources at the same time. Samples were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), N2 adsorption, Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), and Raman microscope. Compared to pure MoS2, the obtained MoS2/GR hybrid showed improved activity for electrochemical detection and chemical reduction of 4-nitrophenol. The activity enhancement should be due to the addition of GR, which could improve the conductivity as well as provide more active sites. The MoS2/GR hybrid could therefore provide new multi-function catalyst for environment protection.
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14

Yang, Zhaoyuan, Jia Zhu, Xianglan Xu, Lei Wang, Guobing Zhou, Zhen Yang, and Yongfan Zhang. "Defect and strain engineered MoS2/graphene catalyst for an enhanced hydrogen evolution reaction." RSC Advances 13, no. 6 (2023): 4056–64. http://dx.doi.org/10.1039/d2ra07363c.

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15

Huang, Zongyu, Weijia Han, Xuejun Liu, Xiang Qi, and Jianxin Zhong. "Graphene/MoS2 hybrid structure and its photoresponse property." Ceramics International 40, no. 8 (September 2014): 11971–74. http://dx.doi.org/10.1016/j.ceramint.2014.04.034.

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16

Aksimsek, Sinan, Henri Jussila, and Zhipei Sun. "Graphene–MoS2–metal hybrid structures for plasmonic biosensors." Optics Communications 428 (December 2018): 233–39. http://dx.doi.org/10.1016/j.optcom.2018.07.075.

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17

Zhang, Huan, and Shouqing Liu. "Study on catalytic properties of graphene/molybdenum sulfide under near-infrared light irradiation." Applied Chemical Engineering 5, no. 1 (January 12, 2022): 16. http://dx.doi.org/10.24294/ace.v5i1.1402.

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Graphene/MoS2 hybrid material was prepared by the hydrothermal method. The hybrid material was characterized by X-ray diffraction spectrum, Raman spectra, transmission electron microscope and UV-vis-NIRS. It was used as a near-infrared photocatalyst to catalyze and degrade Rhodamine B (RhB). The results showed that when the concentration of the RhB solution was 50.0 mg·L–1, the pH value of the solution was 7, the volume of the solution was 50.0 mL, the amount of G/MoS2 catalyst was 0.05 g and near-infrared radiation was carried out for 3 h, the degradation rate of RhB in the 50 mL solution reached 96.5%. When MoS2 was used as the photocatalyst, the degradation rate of RhB was only 75.5%. After 5 times of recycling, the catalytic efficiency of the hybrid photocatalyst was still more than 90%, indicating that the catalyst is very stable.
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18

Xiao, Haodong, Lin Lin, Jia Zhu, Junxiong Guo, Yizhen Ke, Linna Mao, Tianxun Gong, Huanyu Cheng, Wen Huang, and Xiaosheng Zhang. "Highly sensitive and broadband photodetectors based on WSe2/MoS2 heterostructures with van der Waals contact electrodes." Applied Physics Letters 121, no. 2 (July 11, 2022): 023504. http://dx.doi.org/10.1063/5.0100191.

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Анотація:
A nanoscale photodetector is a crucial part of intelligent imaging and wireless communication devices. Building van der Waals (vdWs) heterostructures based on two-dimensional transition metal dichalcogenides is thought to be a smart approach for achieving nanoscale photodetectors. However, the pinning effect induced by surface states, defects, and metal-induced gap states during the fabrication process of vdWs heterostructures and contacting electrodes leads to a large Schottky barrier and consequently limits the photoresponse of vdWs heterostructures. In this study, a photodetector based on the WSe2/MoS2 heterostructure with graphene (Gr)/indium tin oxide (ITO) hybrid electrodes has been fabricated. The vdWs contacts established between the exfoliated graphene layers and WSe2/MoS2 heterostructure are able to get rid of lattice damages caused by atom bombardment during the deposition of metal electrodes. In addition, the reduced Schottky barrier at graphene/heterostructure interfaces facilitates the transport of carriers. Experimental results show that the photodetector based on WSe2/MoS2 heterostructures with Gr/ITO hybrid electrodes exhibits a high responsivity of up to 1236.5 A W−1, a detectivity of up to 1.23 × 1013 Jones, and a fast response of 270/130 μs to light from the ultraviolet to near-infrared range.
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19

Walvekar, Rashmi, Shubrajit Bhaumik, Thachnatharen Nagarajan, Mohammad Khalid, Abdul Khaliq Rasheed, Thummalapalli Chandra Sekhara Manikyam Gupta, and Viorel Paleu. "New Optimized Lubricating Blend of Peanut Oil and Naphthenic Oil Additivated with Graphene Nanoparticles and MoS2: Stability Time and Thermal Conductivity." Lubricants 11, no. 2 (February 9, 2023): 71. http://dx.doi.org/10.3390/lubricants11020071.

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Анотація:
Lubricants are essential to machinery life, as they play a crucial role in controlling and diminishing the friction and wear between moving parts when operated under extreme conditions. To this end, due to tight environmental conditions, manufacturers are looking for alternative solid lubricants to be dispersed in base liquid lubricants. MoS2 and graphene are solid lubricants that provide low frictional properties and high thermal stability in both oxidizing and non-oxidizing environments. This research offers a new lubricant with improved thermal conductivity that combines the synergistic effect of graphene and MoS2 in a blend of vegetable oil (peanut) and naphthenic oil. The ratio of peanut oil and naphthenic oil varies from 1:3–3:1. A fixed composition of 4.34 wt.% palm oil methyl ester (POME) is added to enhance the anti-wear property further. Graphene and MoS2 concentrations varied between 1:2–5:2, respectively. This nanoparticle additive oil blend is physically mixed using a water bath sonication for 4 h. The stability of the blend lubricant dispersed with MoS2 and graphene is studied using a UV-Vis spectrophotometer for 25 days. The effect of various concentrations of graphene, MoS2, peanut oil, and naphthenic oil on the thermal conductivity of the nanolubricant is also studied as a function of temperature (25 °C–55 °C). Artificial neural network models were used for the parametric investigation of the nanolubricant. It is found that the stability of the formulated nanolubricant increased with peanut oil composition above 25 wt.%. The results show that the 3:1 blend ratio showed higher stability for hybrid MoS2-based lubricants. Similarly, the highest thermal conductivity is observed for 100 wt.% naphthenic oil with a 1:2 ratio of graphene–MoS2 at 55 °C.
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20

Roy, Kallol, Medini Padmanabhan, Srijit Goswami, T. Phanindra Sai, Gopalakrishnan Ramalingam, Srinivasan Raghavan, and Arindam Ghosh. "Graphene–MoS2 hybrid structures for multifunctional photoresponsive memory devices." Nature Nanotechnology 8, no. 11 (October 20, 2013): 826–30. http://dx.doi.org/10.1038/nnano.2013.206.

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21

Zeng, Shuwen, Siyi Hu, Jing Xia, Tommy Anderson, Xuan-Quyen Dinh, Xiang-Min Meng, Philippe Coquet, and Ken-Tye Yong. "Graphene–MoS2 hybrid nanostructures enhanced surface plasmon resonance biosensors." Sensors and Actuators B: Chemical 207 (February 2015): 801–10. http://dx.doi.org/10.1016/j.snb.2014.10.124.

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22

Kudr, Jiri, Vojtech Adam, and Ondrej Zitka. "Fabrication of Graphene/Molybdenum Disulfide Composites and Their Usage as Actuators for Electrochemical Sensors and Biosensors." Molecules 24, no. 18 (September 17, 2019): 3374. http://dx.doi.org/10.3390/molecules24183374.

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Анотація:
From the rediscovery of graphene in 2004, the interest in layered graphene analogs has been exponentially growing through various fields of science. Due to their unique properties, novel two-dimensional family of materials and especially transition metal dichalcogenides are promising for development of advanced materials of unprecedented functions. Progress in 2D materials synthesis paved the way for the studies on their hybridization with other materials to create functional composites, whose electronic, physical or chemical properties can be engineered for special applications. In this review we focused on recent progress in graphene-based and MoS2 hybrid nanostructures. We summarized and discussed various fabrication approaches and mentioned different 2D and 3D structures of composite materials with emphasis on their advances for electroanalytical chemistry. The major part of this review provides a comprehensive overview of the application of graphene-based materials and MoS2 composites in the fields of electrochemical sensors and biosensors.
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23

Halim, S. N. M., N. A. H. Jasni, M. F. M. Taib, W. M. F. W. Nawawi, and F. Ahmad. "Liquid-Phase Exfoliated Graphene-MoS2 Based Saturable Absorber for Q-switched Erbium Doped Fiber Laser." Journal of Physics: Conference Series 2075, no. 1 (October 1, 2021): 012006. http://dx.doi.org/10.1088/1742-6596/2075/1/012006.

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Анотація:
Abstract Upon exfoliation from the bulk form, two-dimensional materials have shown ubiquitous properties which are suitable for Q-switched pulsed laser generation. In this research, a successful solution process of graphene-MoS2 nanocomposite saturable absorber through liquid phase exfoliation has been carried out. The method offers a low-cost route for simple and scalable production while providing a promising material quality with on-demand properties and integration flexibility. Stable Q-switched laser operation was realized with graphene-MoS2 hybrid saturable absorber. The pulse duration was measured to be 6 µs with repetition rate of 63.92 kHz corresponding to a peak power and pulse energy of 5.05 mW and 30.87 nJ, respectively.
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24

Hossain, Md Biplob, Tamanna Tasnim, Lway F. Abdulrazak, Md Masud Rana, and Md Rabiul Islam. "A Numerical Approach to Design the Kretschmann Configuration Based Refractive Index Graphene-MoS2 Hybrid Layers With TiO2-SiO2 Nano for Formalin Detection." Photonic Sensors 10, no. 2 (September 16, 2019): 134–46. http://dx.doi.org/10.1007/s13320-019-0566-5.

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Abstract In this paper, a Kretschmann configuration based surface plasmon resonance (SPR) sensor is numerically designed using graphene-MoS2 hybrid structure TiO2-SiO2 nano particles for formalin detection. In this design, the observations of SPR angle versus minimum reflectance and SPR frequency (FSPR) versus maximum transmittance (Tmax) are considered. The chitosan is used as probe legend to perform reaction with the formalin (40% formaldehyde) which acts as target legend. In this paper, both graphene and MoS2 are used as biomolecular acknowledgment element (BAE) and TiO2 as well as SiO2 bilayers is used to improve the sensitivity of the sensor. The numerical results show that the variation of FSPR and SPR angles for inappropriate sensing of formalin is quite insignificant which confirms the absence of formalin. On the other hand, these variations for appropriate sensing are considerably significant that confirm the presence of formalin. At the end of this article, the variation of sensitivity of the proposed biosensor is measured in corresponding to the increment of a refractive index with a refractive index step 0.01 refractive index unit (RIU). In inclusion of TiO2-SiO2 bilayers with graphene-MoS2, a maximum sensitivity of 85.375% is numerically calculated.
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25

Yue, Niu, Jiao Weicheng, Wang Rongguo, Ding Guomin, and Huang Yifan. "Hybrid nanostructures combining graphene–MoS2 quantum dots for gas sensing." Journal of Materials Chemistry A 4, no. 21 (2016): 8198–203. http://dx.doi.org/10.1039/c6ta03267b.

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26

Zhang, Mingsuo, Beibei Chen, Jin Yang, Hongmei Zhang, Qing Zhang, Hua Tang, and Changsheng Li. "MoS2/reduced graphene oxide hybrid structure and its tribological properties." RSC Advances 5, no. 109 (2015): 89682–88. http://dx.doi.org/10.1039/c5ra10308h.

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27

Yu, Lili, Yi-Hsien Lee, Xi Ling, Elton J. G. Santos, Yong Cheol Shin, Yuxuan Lin, Madan Dubey, et al. "Graphene/MoS2 Hybrid Technology for Large-Scale Two-Dimensional Electronics." Nano Letters 14, no. 6 (May 14, 2014): 3055–63. http://dx.doi.org/10.1021/nl404795z.

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28

El barghouti, Mohamed, Abdellatif Akjouj, and Abdellah Mir. "MoS2–graphene hybrid nanostructures enhanced localized surface plasmon resonance biosensors." Optics & Laser Technology 130 (October 2020): 106306. http://dx.doi.org/10.1016/j.optlastec.2020.106306.

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29

Long, Hu, Anna Harley-Trochimczyk, Thang Pham, Zirong Tang, Tielin Shi, Alex Zettl, Carlo Carraro, Marcus A. Worsley, and Roya Maboudian. "High Surface Area MoS2/Graphene Hybrid Aerogel for Ultrasensitive NO2Detection." Advanced Functional Materials 26, no. 28 (May 23, 2016): 5158–65. http://dx.doi.org/10.1002/adfm.201601562.

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30

Zhu, Wenhui, та Ali Reza Kamali. "Molten Salt-Assisted Catalytic Preparation of MoS2/α-MoO3/Graphene as High-Performance Anode of Li-Ion Battery". Catalysts 13, № 3 (28 лютого 2023): 499. http://dx.doi.org/10.3390/catal13030499.

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We report on the facile and scalable catalytic conversion of natural graphite and MoS2 minerals into α-MoO3 nanoribbons incorporated into hexagonal MoS2 and graphene nanosheets, and evaluate the structural, morphological and electrochemical performances of the hybrid nanostructured material obtained. Mechanochemical treatment of raw materials, followed by catalytic molten salt treatment leads to the formation of nanostructures with promising electrochemical performances. We examined the effect of processing temperature on the electrochemical performance of the products. At 1100 °C, an excellent Li-ion storage capacity of 773.5 mAh g−1 is obtained after 180 cycles, considerably greater than that of MoS2 (176.8 mAh g−1). The enhanced capacity and the rate performance of this electrode are attributed to the well-integrated components, characterized by the formation of interfacial molybdenum oxycarbide layer during the synthesis process, contributing to the reduced electrical/electrochemical resistance of the sample. This unique morphology promotes the charge and ions transfer through the reduction of the Li-ion diffusion coefficient (1.2 × 10−18 cm2 s−1), enhancing the pseudocapacitive performance of the electrode; 59.3% at the scan rate of 0.5 mV s−1. This article provides a green and low-cost route to convert highly available natural graphite and MoS2 minerals into nanostructured hybrid materials with promising Li-ion storage performance.
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31

Zhang, Mingsuo, Beibei Chen, Jin Yang, Hongmei Zhang, Qing Zhang, Hua Tang, and Changsheng Li. "Correction: MoS2/reduced graphene oxide hybrid structure and its tribological properties." RSC Advances 6, no. 55 (2016): 49797. http://dx.doi.org/10.1039/c6ra90041k.

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32

Li, Xian, Jing Wang, Dan Xie, Jianlong Xu, Yi Xia, Lan Xiang, and Sridhar Komarneni. "Reduced graphene oxide/MoS2 hybrid films for room-temperature formaldehyde detection." Materials Letters 189 (February 2017): 42–45. http://dx.doi.org/10.1016/j.matlet.2016.11.046.

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33

Wei, Wei, Jinpeng Nong, Linlong Tang, Ning Wang, Chin-Jung Chuang, and Yu Huang. "Graphene-MoS2 Hybrid Structure Enhanced Fiber Optic Surface Plasmon Resonance Sensor." Plasmonics 12, no. 4 (September 9, 2016): 1205–12. http://dx.doi.org/10.1007/s11468-016-0377-0.

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34

Peng, Jian, and Jian Weng. "One-pot solution-phase preparation of a MoS2/graphene oxide hybrid." Carbon 94 (November 2015): 568–76. http://dx.doi.org/10.1016/j.carbon.2015.07.035.

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35

Xu, Guangyuan, Shengyu Chen, Yu Liu, and Weiqiang Fan. "A novel binder-free electrode of graphene film upon intercalation of hollow MoS2 spheres for enhanced supercapacitor performance." Functional Materials Letters 11, no. 04 (August 2018): 1850074. http://dx.doi.org/10.1142/s1793604718500741.

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An electrode based on hollow MoS2 spheres intercalated graphene film was firstly fabricated. When used as an electrode in a supercapacitor, the unique structure can provide electrically conducting channels to promote electrolyte penetration and utilize their surface as much as possible. Thus, the resultant binder-free electrode demonstrated a high specific capacity of 286.8[Formula: see text]F[Formula: see text]g[Formula: see text] more than 2 times of pure MoS2 hollow spheres (116.4[Formula: see text]F[Formula: see text]g[Formula: see text]. A supercapacitor based on MoS2/grapheme and active carbon can achieve a maximum energy density of 22.0[Formula: see text]W h[Formula: see text]kg[Formula: see text] at 800[Formula: see text]W[Formula: see text]kg[Formula: see text]. The outstanding electrochemical properties of the hybrid electrode demonstrate that it holds great potential for the next-generation energy storage applications.
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36

Sharma, Chithra H., Pai Zhao, Lars Tiemann, Marta Prada, Arti Dangwal Pandey, Andreas Stierle, and Robert H. Blick. "Electron spin resonance in a proximity-coupled MoS2/graphene van der Waals heterostructure." AIP Advances 12, no. 3 (March 1, 2022): 035111. http://dx.doi.org/10.1063/5.0077077.

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Coupling graphene’s excellent electron and spin transport properties with a higher spin–orbit coupling (SOC) material allows tackling the hurdle of spin manipulation in graphene due to the proximity to van der Waals layers. Here, we use magneto-transport measurements to study the electron spin resonance on a combined system of graphene and MoS2 at 1.5 K. The electron spin resonance measurements are performed in the frequency range of 18–33 GHz, which allows us to determine the g-factor in the system. We measure the average g-factor of 1.91 for our hybrid system, which is a considerable shift compared to that observed in graphene on SiO2. This is a clear indication of proximity induced SOC in graphene in accordance with theoretical predictions.
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37

Guo, Jin, Xiao Chen, Shaohua Jin, Mingming Zhang, and Changhai Liang. "Synthesis of graphene-like MoS2 nanowall/graphene nanosheet hybrid materials with high lithium storage performance." Catalysis Today 246 (May 2015): 165–71. http://dx.doi.org/10.1016/j.cattod.2014.09.028.

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38

Kaur, Jasneet, Alessandro Vergara, Manuela Rossi, Alfredo Maria Gravagnuolo, Mohammadhassan Valadan, Federica Corrado, Mariarosaria Conte, Felice Gesuele, Paola Giardina, and Carlo Altucci. "Electrostatically driven scalable synthesis of MoS2–graphene hybrid films assisted by hydrophobins." RSC Adv. 7, no. 79 (2017): 50166–75. http://dx.doi.org/10.1039/c7ra09878b.

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39

Crippa, Paolo, Giorgio Biagetti, Lorenzo Minelli, Claudio Turchetti, Martino Aldrigo, Mircea Dragoman, Davide Mencarelli, and Luca Pierantoni. "Next-Generation Hybrid RF Front-End with MoS2-FET Supply Management Circuit, CNT-FET Amplifiers, and Graphene Thin-Film Antennas." Electronics 11, no. 22 (November 12, 2022): 3708. http://dx.doi.org/10.3390/electronics11223708.

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One-dimensional (1D) and two-dimensional (2D) materials represent the emerging technologies for transistor electronics in view of their attractive electrical (high power gain, high cut-off frequency, low power dissipation) and mechanical properties. This work investigates the integration of carbon-nanotube-based field-effect transistors (CNT-FETs) and molybdenum disulphide (MoS2)-based FETs with standard CMOS technology for designing a simple analog system integrating a power switching circuit for the supply management of a 10 GHz transmitting/receiving (T/R) module that embeds a low-noise amplifier (LNA) and a high-power amplifier (HPA), both of which loaded by nanocrystalline graphene (NCG)-based patch antennas. Verilog-A models, tuned to the technology that will be used to manufacture the FETs, were implemented to perform electrical simulations of the MoS2 and CNT devices using a commercial integrated circuit software simulator. The obtained simulation results prove the potential of hybrid CNT-MoS2-FET circuits as building blocks for next-generation integrated circuits for radio frequency (RF) applications, such as radars or IoT systems.
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40

Wu, Leiming, Yue Jia, Leyong Jiang, Jun Guo, Xiaoyu Dai, Yuanjiang Xiang, and Dianyuan Fan. "Sensitivity Improved SPR Biosensor Based on the MoS2/Graphene–Aluminum Hybrid Structure." Journal of Lightwave Technology 35, no. 1 (January 1, 2017): 82–87. http://dx.doi.org/10.1109/jlt.2016.2624982.

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41

Kwon, Jeongteak, and Jungyoon Kim. "Fabrication and properties of pn diodes with hybrid 2D layers: Graphene/MoS2." Materials Express 8, no. 3 (June 1, 2018): 299–303. http://dx.doi.org/10.1166/mex.2018.1430.

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42

Xu, Xiaobing, Yuan Sun, Wen Qiao, Xing Zhang, Xing Chen, Xueyin Song, Liqian Wu, Wei Zhong, and Youwei Du. "3D MoS2-graphene hybrid aerogels as catalyst for enhanced efficient hydrogen evolution." Applied Surface Science 396 (February 2017): 1520–27. http://dx.doi.org/10.1016/j.apsusc.2016.11.201.

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43

Kumar, Rahul, Neeraj Goel, Ramesh Raliya, Pratim Biswas, and Mahesh Kumar. "High-performance photodetector based on hybrid of MoS2 and reduced graphene oxide." Nanotechnology 29, no. 40 (July 26, 2018): 404001. http://dx.doi.org/10.1088/1361-6528/aad2f6.

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44

Zhou, Xiaosi, Li-Jun Wan, and Yu-Guo Guo. "Synthesis of MoS2 nanosheet–graphene nanosheet hybrid materials for stable lithium storage." Chemical Communications 49, no. 18 (2013): 1838. http://dx.doi.org/10.1039/c3cc38780a.

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45

Zhang, Xiao, Qianwen Zhang, Yanfang Sun, and Jinxue Guo. "Hybrid catalyst of MoS2-CoMo2S4 on graphene for robust electrochemical hydrogen evolution." Fuel 184 (November 2016): 559–64. http://dx.doi.org/10.1016/j.fuel.2016.07.048.

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46

Chen, Bo, Hengchang Bi, Qinglang Ma, Chaoliang Tan, Hongfei Cheng, Ye Chen, Xinyan He, et al. "Preparation of graphene-MoS2 hybrid aerogels as multifunctional sorbents for water remediation." Science China Materials 60, no. 11 (November 2017): 1102–8. http://dx.doi.org/10.1007/s40843-017-9150-7.

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47

Fan, Xin, Rohit Ranganathan Gaddam, Nanjundan Ashok Kumar, and Xiu Song Zhao. "A Hybrid Mg2+ /Li+ Battery Based on Interlayer-Expanded MoS2 /Graphene Cathode." Advanced Energy Materials 7, no. 19 (May 26, 2017): 1700317. http://dx.doi.org/10.1002/aenm.201700317.

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48

Lin, Yin-Pai, Boris Polyakov, Edgars Butanovs, Aleksandr A. Popov, Maksim Sokolov, Dmitry Bocharov, and Sergei Piskunov. "Excited States Calculations of MoS2@ZnO and WS2@ZnO Two-Dimensional Nanocomposites for Water-Splitting Applications." Energies 15, no. 1 (December 27, 2021): 150. http://dx.doi.org/10.3390/en15010150.

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Transition metal dichalcogenide (TMD) MoS2 and WS2 monolayers (MLs) deposited atop of crystalline zinc oxide (ZnO) and graphene-like ZnO (g-ZnO) substrates have been investigated by means of density functional theory (DFT) using PBE and GLLBSC exchange-correlation functionals. In this work, the electronic structure and optical properties of studied hybrid nanomaterials are described in view of the influence of ZnO substrates thickness on the MoS2@ZnO and WS2@ZnO two-dimensional (2D) nanocomposites. The thicker ZnO substrate not only triggers the decrease of the imaginary part of dielectric function relatively to more thinner g-ZnO but also results in the less accumulated charge density in the vicinity of the Mo and W atoms at the conduction band minimum. Based on the results of our calculations, we predict that MoS2 and WS2 monolayers placed at g-ZnO substrate yield essential enhancement of the photoabsorption in the visible region of solar spectra and, thus, can be used as a promising catalyst for photo-driven water splitting applications.
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49

Hossain, Md Biplob, M. M. Rahman Khan, Md Sadiqur Rahman, S. S. Bin Badrudduza, M. M. Sabiha, and Md Masud Rana. "Graphene-MoS2-Au-TiO2-SiO2 Hybrid SPR Biosensor: A New Window for Formalin Detection." Journal of Materials and Applications 8, no. 2 (November 15, 2019): 51–58. http://dx.doi.org/10.32732/jma.2019.8.2.51.

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In this article, numerically a surface plasmon resonance (SPR) biosensor is developed based on Graphene-M­­­­OS2-Au-TiO2-SiO2 hybrid structure for formalin detection. This developed sensor sensed the presence of formalin by applying attenuated total reflection (ATR). In ATR method, we developed and observed two characteristics curve, one is “SPR angle versus minimum reflectance (Rmin)” and another is “SPR frequency (SPRF) versus maximum transmittance (Tmax). In the proposed sensor, Chitosan is used as probe legend to perform specific reaction with the formalin (40% formaldehyde) as target legend. Here, graphene and MoS2 both are used as biomolecular acknowledgment element (BAE). And TiO2 as well as SiO2 bilayers are used to improve sensor sensitivity and Gold (Au) is to sharp SPR curve. In numerical results, the variation of SPRF and SPR angle for inappropriate sensing of formalin is quiet insignificant which confirms the absence of formalin. On the other hand, these variations for appropriate sensing is considerably significant that confirms the presence of formalin. At the end of this article, a study of variation of sensitivity of the proposed biosensor in corresponding to the increment of refractive index with a refractive index step 0.01 RIU is measured. In inclusion of TiO2-SiO2 bilayers with Graphene-M­­­­OS2, maximum sensitivity of 85.375% more is numerically reported.
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50

Gnanasekar, Paulraj, Dharmaraj Periyanagounder, and Jeganathan Kulandaivel. "Vertically aligned MoS2 nanosheets on graphene for highly stable electrocatalytic hydrogen evolution reactions." Nanoscale 11, no. 5 (2019): 2439–46. http://dx.doi.org/10.1039/c8nr10092f.

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