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Showing 1 to 20 of 130 for “"Transition metal dichalcogenides"”.
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MULTIPHOTON ABSORPTION IN MONOLAYER TRANSITION METAL DICHALCOGENIDES
… to calculate 2PA spectra of other monolayer transition metal dichalcogenides and it reveals the intrinsic nature of 2PA process by comparing the calculated α2-values with experimental data. Our finding lays theoretical foundation and provides experimental evidence for developing sensitive …
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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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Superlattice Formation in Group-Ivb Transition Metal Dichalcogenides
Made available in DSpace on 2015-05-13T15:22:15Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7913664.PDF: 3192782 bytes, checksum: 606f8a210c191f583f5315a3e1efe707 (MD5) Previous issue date: 1978
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Neutron scattering studies of intercalated transition metal dichalcogenides
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Electronic devices based on semiconducting transition metal dichalcogenides
Semiconducting transition metal dichalcogenides (TMDs) possess great potential as the channel material for next-generation electronic and optoelectronic devices due to their atomically thin body without surface dangling bonds and tunable bandgaps. This thesis investigates various transistors based …
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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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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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Synthesis, Superstructure, Vacancy-Ordering of Intercalated Transition Metal Dichalcogenides
… crystal structures are discussed of intercalated transition metal dichalcogenides (TMDCs) 6R-CuxTa1+yS2 and 2H-CuxTa1+ySe2, as well as the compound Cu3TaSe4. Synthesis of these compounds has been performed by the method of chemical vapor transport, using iodine as a transporting agent. X-ray …
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Superlattice formation in group IV-B transition metal dichalcogenides
… up into several additional modes below the phase transition. In the infrared study, there is a dramatic shift in the Drude edge as well as new absorption peaks at low temperature. These observed phenomena are related to the energy gap which opens up in the band structure below the phase transition …
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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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Photoluminescence from Defects in Two-Dimensional Transition Metal Dichalcogenides
Atomic defects in monolayer transition metal dichalcogenides (TMDs) such as chalcogen vacancies significantly affect their properties. In this thesis, I provide a reproducible and facile strategy to rationally induce chalcogen vacancies in monolayer MoS<sub>2</sub> by annealing at 600 °C in an …
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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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Coherent light-matter interactions in monolayer transition-metal dichalcogenides
… beyond those encountered in bulk forms. Transition-metal dichalcogenides (TMDs) such as MoS 2, WS2 and WSe2 are prime examples of such semiconductors. They appear in layered structure that can be reduced to a stable single layer where remarkable electronic properties can emerge. Monolayer …
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Electrostatic effects of inhomogeneous strain in monolayer transition metal dichalcogenides
… the nanoscale. This work is primarily focused on transition metal dichalcogenides, which have received much attention owing to their semiconducting nature, placing them in a key role among two-dimensional materials. Monolayer transition metal dichalcogenides exhibit a significant piezoelectric …
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Two-dimensional transition metal dichalcogenides as next generation semiconductor materials
… recent years 2D materials, and more specifically transition metal dichalcogenisdes (TMD) MoS2 and WS2 have been investigated in the field of semiconductors as they exhibit energy gaps which span from semi-metals through to wide band gap semiconductors. Due to their thickness on an atomic scale, …
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Phase Engineering and Optical Property Tuning of Transition Metal Dichalcogenides
… the cation-assisted crystallographic phase transitions and optical property modifications of two-dimensional transition metal dichalcogenides (2D TMDs) using optical techniques. The thesis begins with an introduction to the context of the research (Chapter 1), followed by an overview to the …
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OPTICAL PROPERTIES OF 2D TRANSITION METAL DICHALCOGENIDES ENHANCED BY PLASMONIC NANOSTRUCTURES
… a typical two dimensional (2D) materials system, transition metal dichalcogenides (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 …
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