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Showing 1 to 20 of 47 for “"Transition Metal Dichalcogenides (TMDS)"”.
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Three-dimensional device and circuit architectures : new systems with new nanotechnologies
… (CNTs) or two-dimensional nanomaterials such as transition metal dichalcogenides (TMDs). Yet simply relying on new materials alone is insufficient for realizing the next generation of energy-efficient computing. Rather, coordinated advances across the entire computing system stack are required, …
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Atomistic modeling and simulations of 2D materials : chemical vapor deposition, nanoporous defects, force-field development, wetting, and friction
… (2D) materials, such as, graphene, transition metal dichalcogenides (TMDs) (e.g., molybdenum disulfide (MoS₂)), and hexagonal boron nitride (hBN), have recently received considerable attention, due to their layer-number-dependent optoelectronic, mechanical, and barrier properties. …
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Defect-driven processing of two-dimensional transition metal dichalcogenides
Two-dimensional transition metal dichalcogenides (TMDs) are an emerging class of semiconductor materials that offer exciting new properties for future electronic and optoelectronic applications. However, many ongoing challenges related to synthesis and processing must be overcome before this …
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Guided etching and deposition of transition metal dichalcogenides
Two-dimensional (2D) transition metal dichalcogenides (TMDs) with engineered nanopores have been suggested as a promising materials system in membrane and catalysis applications in both the energy and environment fields. Because of its atomic thinness, 2DTMDs are promising candidates for osmosis …
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Multiscale modeling of two-dimensional materials : structures, properties, and designs
… (MD) models have been developed for the 2D transition metal dichalcogenides (TMDs) such as MoS₂, WS₂, MoSe₂, and WSe₂ from density functional theory (DFT) by focusing on their nonlinearity and failure strains. The structures, crack-tip behaviors, and fracture patterns from the models are …
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NANOPATTERNING OF FREE-STANDING VAN DER WAALS HETEROSTRUCTURES USING CHARGED PARTICLES
Lateral confinement in two-dimensional (2D) transition metal dichalcogenides (TMDs) enables one-dimensional structures with tunable band structures, offering new opportunities in nanophotonics and optoelectronics. However, achieving such confinement with high spatial and depth resolution in stacked …
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Carbon Nanotubes for Space Electronics: Enabling New Applications with Emerging Technologies
… on materials such as carbon nanotubes (CNTs) and transition metal dichalcogenides (TMDs). However, solely relying on new materials alone is insufficient to realize next-generation electronics. Therefore, we must coordinate advances across the entire computing stack whereby we leverage new …
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Developing transition metal dichalcogenide alloys for applications to integrated photonics
We explore the potential of transition metal dichalcogenides (TMDs) as phase-change materials for photonics integrated circuits (PIC). We measure the near-infrared (NIR) optical properties of bulk crystal telluride TMDs and sulfide TMDs. We find that telluride TMDs have large optical density and …
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Photoelectrochemical microscopy studies of transition metal dichalcogenides nanoflakes: addressing open questions of structure-function relationships
Transition metal dichalcogenides (TMDs) are exciting materials for applications in solar energy conversion. However, to advance technologies that leverage these materials, a strong understanding of fundamental photoelectrochemistry and related processes is necessary. Photoelectrochemical microscopy …
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Emergent properties of misfit layer compounds from first principles.
… of rocksalt units stacked with few-layers transition metal dichalcogenides (TMDs). They host Ising superconductivity, charge density waves, and good thermoelectricity. However, research has mostly focused on specific compounds and trial-and-error synthesis, making the design of misfits’ …
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Optical properties of two-dimensional transition metal dichalcogenides
The re-discovery of the atomically thin transition metal dichalcogenides (TMDs), which are mostly semiconductors with a wide range of band gaps, has diversified the family of two-dimensional materials and boosted the research on their potential applications in the fields of logic nanoelectronics …
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Control of Excitons and Quantum Emitters in Two-Dimensional Materials
… hexagonal boron nitride (hBN) and semiconducting transition metal dichalcogenides (TMDs). In spite of the unique characteristics of these emitters, they suffer from large inhomogeneous distribution because of their proximity to the surface and external environment, limiting practical applications …
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CMOS-Compatible Wafer-Scale Synthesis and Rapid Characterization of Two-Dimensional Transition Metal Dichalcogenides
Two-dimensional transition metal dichalcogenides (TMDs) such as monolayer MoS₂ offer great promise for next generation nanoelectronics due to their atomic thickness, tunable bandgaps, and excellent electrostatic control. However, industrial semiconductor manufacturing demands CMOS-compatible, …
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Two-dimensional materials for ubiquitous electronics
… of the first devices and circuits based on transition metal dichalcogenides (TMDs), a family of two dimensional semiconductors. The transport properties of exfoliated few layer flakes MoS2 and chemical vapor deposition (CVD) grown single layer large area MoS2 are systematically studies. …
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Layer-by-Layer Single-crystal Two-dimensional Material Growth by Geometric Confinement
Two-dimensional (2D) transition metal dichalcogenides (TMDs) and their heterostructures have been widely studied for next-generation electronics. However, the following critical challenges have hindered them from their commercialization: 1) precise layer control during their growth, 2) maintaining …
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Structure Characterization and Electronic Properties Investigation of Two-Dimensional Materials
… two dimensional (2D) materials like graphene and transition metal dichalcogenides (TMDs). First, different types of point and line defects, e.g. vacancies, anti-sites, guest elements, adatoms, vacancy clusters, grain boundaries, and edges, in these materials are categorized in terms of structure. …
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Device Physics of Two-Dimensional Crystalline Materials
… of other 2D crystals, such as atomically thin transition metal dichalcogenides (TMDs), has recently exploded, revising the physics of 2D electrons in the ultimate confinement limit. At the same time, constructing heterostructures based on 2D crystals, either by placing the atomic layer on a …
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Investigation of the structure and elemental composition of 2D Interfaces in Transition Metal Dichalcogenides
… electrical, mechanical, or optical properties. Transition metal dichalcogenides (TMDs) are semiconductor materials from this family that show promise to be the next generation of nanoelectronics as well as give possibility to improve energy or informational storage. However, for maintaining high …
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Exploring valleytronics in 2D transition metal dichalcogenides
Monolayer transition metal dichalcogenides (TMDs) exhibit distinct electrical and optical properties according to the relative occupation of each of two valleys in their dispersion relation. The resulting valley degree of freedom is robust, linked to a large spin-orbit splitting between valence …
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Dipole Contact Engineering for Field-Effect Transistors Based on Two-Dimensional Materials
… (2D) semiconductors, and in particular transition metal dichalcogenides (TMDs) such as molybdenum disulfide (MoS₂), are promising candidates for future field-effect transistors. TMDs can enable aggressive lateral and vertical device scaling, and they can add computing power density and …
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