Global ETD Search
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Showing 1 to 16 of 16 for “"TMDC"”.
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Phase-Engineered Field-Effect Transistors Based on Two-Dimensional Transition Metal Dichalcogenides
… (2D) transition metal dichalcogenides (TMDCs) are layered materials in which each unit consists of a transition metal (Mo, and W) layer sandwiched between two chalcogen (S, Se, and Te) atomic layers. They can exist in either a semiconducting or metallic phase. Semiconducting TMDC based …
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Field-effect transistors on monolayer transition metal dichalcogenides synthesized by chemical vapor deposition
… 2DMs, known as transition metal dichalcogenides (TMDCs), are particularly useful as channel material in transistor devices due to their often-semiconducting properties. However, among the various challenges associated with applying TMDCs to conventional electronic devices, the most important by …
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Fast algorithm and surface integral equations for two-dimensional materials modeling
… proposed with transition metal dichalcogenide (TMDC) flakes. With the aid of the electric field integral equation and impedance boundary condition, the surface currents on TMDC flakes can be calculated at fundamental frequencies. By applying three-fold rotational symmetry of the quadratically …
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INVESTIGATION OF PHASE TRANSFORMATIONS IN TRANSITION METAL DICHALCOGENIDES DURING SYNTHESIS AND POST GROWTH
Transition metal dichalcogenides (TMDCs) are promising candidates for use in beyond-Moore electronics, photovoltaics, sensing, and energy storage devices. The highly anisotropic crystal structure of TMDCs is characterized by chemically active edge sites and relatively inert basal plane layers, …
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Electrical, electronic and optical properties of MoSe2 and WSe2
Transition-metal dichalcogenides (TMDC) crystals have emerged as a new class of semiconductors that display distinctive properties at monolayer thickness. Their electrical, electronic and optical properties are of particular interest and importance for applications in optoelectronics as light …
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Large-scale density functional theory study of van-der-Waals heterostructures
… such as transition metal dichalcogenides (TMDC) or black phosphorus (BP) and hexagonal boron nitride (hBN). We show that hBN can protect BP from external influences, while also preventing the band-gap reduction in BP stacks, and enabling the use of BP heterostructures as tunnelling field …
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Development of Transition Metal Dichalcogenide Memristive Materials and Devices for Neuromorphic Systems
… in hardware. Transition metal dichalcogenides (TMDCs) are promising in this context, offering atomically thin scalability and resistive switching behavior that mimics synaptic functions. However, reproducible wafer-scale deposition and reliable integration into memristive devices remain key …
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Nanoscale light-matter interaction of ultrathin materials
… motion. 3. Transition‐metal dichalcogenide (TMDC) monolayers, hosting tightly bound excitons with binding energies of several hundred meV, due to reduced screening in the surrounding dielectric. Building on these foundations, we develop a fully self‐consistent Maxwell–Bloch formalism to …
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Electrical, electronic and optical properties of MoS2 & WS2
… 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 applications in optoelectronics as light emitters, …
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Scanning tunneling microscopy investigations of transition metal dichalcogenide 1t-tantalum disulfide and zigzag-shape graphene nanoribbons in ultra-high vacuum
… member of the transition metal dichalcogenides (TMDCs) family, and wet-chemically synthesized zigzag-shape graphene nanoribbons (GNRs) on hydrogen passivated silicon substrate through scanning tunneling microscopy (STM). Dry contact transfer allows unperturbed transfer and exfoliation of desired …
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Tunable emission from two-dimensional semiconductor with platelet optical antennas
… Monolayer transition metal dichalcogenides (TMDC), such as MoS2 , are direct bandgap semiconductors which hold promises in valley-based optoelectronic applications or light-emitting devices. However, the weak light-matter interaction in this atomically thin slab leads to low absorbance (- 3%) …
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Synthesis of 1T-Tantalum (IV) Sulfide and observation of charge density wave using scanning tunneling microscopy
… A member of the transition metal dichalcogenide (TMDC) family, 1T-TaS2 exhibit a periodic modulation of electronic charge density. Unlike bulk semiconductor or metals, lattice distortion in this low-dimensional material creates non-uniform, wave-like electron densities. In this thesis, we have …
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Synthesis and characterization of two-dimensional transition metal dichalcogenides
Semiconducting transition metal dichalcogenides (TMDCs) have attracted intense research interest in recent years, due to their many unique electrical, optical, and mechanical properties and their potential for diverse applications. One of the key challenges in 2D TMDC electronics is to synthesize …
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Synthesis of graphene and h-BN by chemical vapor deposition and their transfer process
… (h-BN) and transitional metal dichalcogenide (TMDC). In particular, the excellent material properties of graphene fascinated engineering fields to use it as a device component of applications such as RF-device or photodetector. Among various synthesis methods, metal-catalyzed chemical vapor …
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From Micro- to Nano-porous Cellular Materials with Layered 2D Microstructure
… of transition metal dichalcogenides (TMDCs) and other 2D materials.
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Progress on 2D-MoS2: development of a scalable fabrication method and demonstration of an X-ray detector
Two-dimensional transition metal dichalcogenides (TMDCs) aroused significant interest in the last years as semiconductor materials for application in the field of electronics, due to their tunable bandgap, good carrier mobility, and strong light absorption. Among TMDCs, two-dimensional molybdenum …