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Showing 1 to 20 of 144 for “"MoS2"”.
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Nanostructure Characterization, Fabrication and Devices of 2D Mos2 and Mos2/WS2 Hetrostructures
… metal dichalcogenides, molybdenum disulphide (MoS2) and tungsten disulphide (WS2) are explored most extensively since the last few years because of their complementary nature to metallic graphene. These thin 2D materials are semiconducting in nature, and moreover, bandgap also changes from …
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Metallic MoS2 Nanosheets for Lithium-Sulfur Batteries
… lithium-sulfur (Li-S) batteries using metallic MoS2 nanosheets as functional host materials. While our prior research established lithiated MoS2 (LixMoS2) as an effective sulfur host for Li-S batteries, two major barriers remain to practical implementation of LixMoS2: incomplete understanding …
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Electrical, electronic and optical properties of MoS2 & WS2
Two dimensional materials such as graphene, boron nitride and transition metal dichalcogenide (TMDCs) monolayers have arisen as a new class of materials with unique properties at monolayer thickness. Their electrical, electronic and optical properties are of great importance for a variety of …
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Investigation of Optical and Electronic Properties of Au Decorated MoS2
… as in gold (Au) - molybdenum disulfide (MoS2), is of great interest from the standpoint of fundamental science as it constitutes an outstanding platform to investigate optical and electronic properties due to charge transfer. The applied aspects of such systems introduce new options for …
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Model and analysis of MoS2 nanopore biomolecule detection via membrane current
A microscopic model of MoS2 nanopore transverse current biosensor is built based on Boltzmann transport formalism. The model employs a self-consistent Poisson-Boltzmann scheme for the interaction among ions, charge carriers around the pore rim, and biomolecules. In combination with experimental …
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STUDIES OF 2D LAYERED MnO2 AND MoS2 FOR ANTIBACTERIAL AND ELECTROCHEMICAL APPLICATIONS
… to tune the properties of two layered materials, MoS2 and MnO2 for applications such as antibacterial, energy storage and water remediation. Two aspects of the materials were investigated. Firstly, the synthetic parameters were tuned to prepare material with different morphologies and then the …
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Electrical properties of metal semiconductor contacts - metals on MoS2: a case study
Properties of monolayer semiconductor, MoS2, are presented in the research. Schottky barrier height and Schottky-Mott rules are discussed. The current-voltage measurement and capacitance-voltage measurement are analyzed considering the role of the work function. We mainly focus on metal …
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Preparación y modificación de láminas bidimensionales de grafeno y MoS2 para aplicaciones energéticas y medioambientales
Tesis doctoral por compendio de publicaciones y con mención internacional
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MoS2 on Gold: achieving extremely high exfoliation yield and optical contrast for Van der Waals monolayers
… Waals (VdWs) materials. Molybdenum disulphide (MoS2) on gold (Au) is investigated in detail as it provides an extremely large exfoliation yield and a high optical contrast. These techniques are further explored with other VdWs and substrate materials. Further experimental work in electrically …
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Progress on 2D-MoS2: development of a scalable fabrication method and demonstration of an X-ray detector
… TMDCs, two-dimensional molybdenum disulfide (2D-MoS2) has been the most investigated for electronic and optoelectronic applications, like transistors and photodetectors. 2D-MoS2 can particularly benefit from the excellent light matter interaction properties in the UV-VIS spectrum combined with …
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SYNTHESIS, ELECTRONIC AND OPTO-ELECTRONIC TRANSPORT PROPERTIES OF ATOMICALLY THIN 2D LAYERS OF MoS2, WSe2 and CuIn7Se11
… phenomena of charge carriers in few layer MoS2 synthesized using a variety of methods such as Chemical Vapor Deposition (CVD), liquid phase exfoliation and mechanical exfoliation as well as CVT grown mechanically exfoliated WSe2 and ternary alloy of CuIn7Se11 is reported. Specifically, it …
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Novel nanomanufacturing methods for bottom-up III-V nanowires and van der Waals epitaxy of monolayer MoS2
… and 2-dimensional (2-D) molybdenum disulfide (MoS2) have received tremendous attention over the past few decades. Numerous applications have been proposed such as nanowire MOSFETs, nanowire electrical generators, nanowire biosensors, nanowire single photon detectors, MoS2 transistors, and MoS2 …
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The c33 elastic constant of MoS2 as a function of pressure and the deposition of multilayer thin films by sputtering
The c33 elastic constant of exfoliated MoS2 flakes was measured up to 11 GPa using a diamond anvil cell and picosecond interferometry. The resulting elastic constants were similar those predicted by hybrid density functional theory calculations by Peelaers and Van de Walle, but lower than those …
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Eterostrutture di Disolfuro di Molibdeno: preparazione e trasporto elettronico
Il Disolfuro di Molibdeno (2H-MoS2) è il materiale semiconduttore più investigato della famiglia dei Dicalcogenuri dei Metalli di Transizione (TMDs). Esso è caratterizzato da forti legami nel piano fra gli atomi di Mo e S e deboli interazioni van der Waals (vdW) fra gli strati separati di cui il …
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Tip-based nanolithography and application to molybdenum disulfide devices
… and the application of TBN to fabricate MoS2 devices. The main contributions of this work are (i) understanding the effects of polymer properties and polymer melt flow on the size and shape of polymer nanostructures deposited from a heated tip, (ii) fabricating monolayer MoS2 nanoribbon …
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INVESTIGATION OF PHASE TRANSFORMATIONS IN TRANSITION METAL DICHALCOGENIDES DURING SYNTHESIS AND POST GROWTH
… this dissertation discusses experiments in which MoS2 crystals with different crystallographic surface orientations are interfaced with other materials (Li, Ge or Ag). It then proceeds to explore – using data obtained from in situ X-ray photoelectron spectroscopy (XPS) – the interfacial phase …
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Thermal conductivity anisotropy in molybdenum disulfide thin films
… the anisotropy in molybdenum disulfide, MoS2, thin films. The hexagonal crystal structure of MoS2 and recent results on tungsten diselenide, with a similar structure, lead to the belief that MoS2 may exhibit ultralow thermal conductivity. Thermal conductivities were measured using the …
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Lithium Storage Mechanisms and Electrochemical Behavior of Molybdenum Disulfide
… behavior of molybdenum disulfide (MoS2) when utilized as an anode material in Li-ion batteries, particularly focusing on the intriguing phenomenon of extra capacity observed beyond theoretical expectations and the unique discharge curve of the first cycle. Employing a robust suite …
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