Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 33 for “"Molybdenum disulfide (MoS2)"”.
-
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 …
-
Thermal conductivity anisotropy in molybdenum disulfide thin films
… was completed to determine 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 …
-
OPTICAL PROPERTIES OF 2D TRANSITION METAL DICHALCOGENIDES ENHANCED BY PLASMONIC NANOSTRUCTURES
… (TMDCs) such as tungsten diselenide (WSe2) and molybdenum disulfide (MoS2) have impressive properties arising from the atomically-thin nature and have been demonstrated to be potentially useful building blocks for optoelectronic integrated circuits. An important research focus on TMDCs is their …
-
2D material devices for low power logic and memory applications
… of mechanically exfoliated n-type Molybdenum Disulfide (MoS2 ) and a new p-type material Germanium Selenide (GeSe) were investigated. The pn junctions based on GeSe/MoS2 heterostructures were fabricated and showed excellent rectifying characteristics, demonstrating for the first …
-
Molybdenum disulfide nanoporous membranes for water desalination
We demonstrate molybdenum disulfide (MoS2) as a nano porous membrane for water desalination. By performing extensive molecular dynamics simulations, we find that a nanopore in a single-layer MoS2 can effectively reject salt ions and allow transport of water at a high rate. More than 88% of ions are …
-
Superconducting tunneling spectroscopy of graphene and graphene nanostructures
… study to another two dimensional material, molybdenum disulfide (MoS2), where we observe the evolution of the system from a regime of Coulomb blockade to resonant transmission. Our observation could open up new possible applications using nanostructure in these low dimensional materials.
-
Developing force field parameters for water interacting with graphene and graphene-like materials
… including hexagonal boron nitride (hBN) and molybdenum disulfide (MoS2). Compared to graphene, the graphene-analogous materials possess non-zero bandgap, chemical inertness, and biological compatibility. The graphene-analogous materials are promising materials, complementary to graphene, for …
-
Evaluation of diamond-like carbon films for lubrication in space
… and ionising radiation. Currently, sputtered molybdenum disulfide (MoS2) is an established solid lubricant for space applications. However, diamond-like carbon coatings have been increasingly studied as potential candidates for preparation of wear resistant materials with low friction in …
-
Lithium Storage Mechanisms and Electrochemical Behavior of Molybdenum Disulfide
… investigates the electrochemical 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. …
-
Novel nanomanufacturing methods for bottom-up III-V nanowires and van der Waals epitaxy of monolayer MoS2
… such as nanowires 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 …
-
Electric Field Assisted Hydrogen Evolution Using Metallic Molybdenum Disulfide Catalysts
… environmental pollution issues. Metallic phase molybdenum disulfide (MoS2) has emerged as a promising non-precious metal catalyst for hydrogen evolution reaction (HER). Numerous studies have focused on enhancing its catalytic performance with complex structural engineering. Recently, field …
-
Experimental studies of heat transport across material interfaces at the nano and micro scales
… a two dimensional (2D) material such as MoS2 and micron scale particles. We used frequency domain thermoreflectance (FDTR) to conduct all thermal property measurements. This technique can measure thin film thermal properties as well as characterize the interface between two materials. …
-
Investigating interfacial liquid molecular structures using electrochemical 3-dimensional atomic force microscopy
… (a material with uniform surface potential) to molybdenum disulfide (MoS2) (a semiconductor with varying surface potential). This led to some interesting findings where we observed a common trend of the reconfiguration of the interfacial structure on both materials’ surfaces, but the absolute …
-
Electrical contacts on two-dimensional transition metal dichalcogenide semiconductors
… metal dichalcogenides (TMDs) such as molybdenum disulfide (MoS2) have been demonstrated to be excellent semi-conductors for ultra-thin FETs. However, unusually high contact resistance and Fermi level pinning have been observed due to damage at the metal-2D TMD interface. Studies have …
-
Influence of van der Waals interfaces on electrical and optical properties of two-dimensional materials
… and gold metal films on 2D materials such as molybdenum disulfide (MoS2) and graphene. Indium and gold metal films were chosen because previous research in the group has demonstrated that indium forms vdW interfaces with 2D materials while gold forms defective non-vdW interfaces. Atomic force …
-
Multi-pulse nonlinear optical spectroscopy and light-matter interactions in layered materials.
… Transition metal dichalcogenides such as molybdenum disulfide (MoS2) are attractive materials due to the existence of a direct excitonic resonance that can be used to enhance nonlinear optical phenomena, such as Raman spectroscopy. Here, we have investigated four-wave mixing (FWM) …
-
Investigation of Optical and Electronic Properties of Au Decorated MoS2
… metal-semiconductor interface, 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 …
-
Nanopores for detecting and sensing biological molecules
… simulations, we showed that a single layer molybdenum Disulfide (MoS2) nanopore is attractive pore for single base DNA detection with high SNR and multi-level conductance. We introduced and simulated MscL (Mechano-Sensitive Channel of Large Conductance) as an alternative to traditional …
-
Photoelectrochemical and photophysical studies of carbon nanotube and molybdenum disulfide based light harvesting devices
… single-wall carbon nanotubes (SWCNTs) and molybdenum disulfide (MoS2) nanolayers for their light-harvesting ability in donor-acceptor systems. These materials were studied with three specific goals: (i) introducing innovative light-harvesting designs, (ii) understanding their fundamental …
-
Two-dimensional electronics and optoelectronics: From materials syntheses to device applications
… a lot of interests recently, one is called molybdenum disulfide (MoS2), and the other is black phosphorus. Most of my research is based on these two materials, I tried to study from the synthesis of the materials, and then study the electronics applications of these materials.</p> <p>In the …
Page 1 of 2