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.
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Showing 1 to 20 of 111 for “"Two-Dimensional Materials"”.
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Two-dimensional materials for ubiquitous electronics
… of amorphous silicon and organic semiconductor. Two-dimensional materials are good candidates for ubiquitous electronics because of their excellent properties such as transparency, flexibility, high mobility and low cost. This thesis focused on the development of the first devices and circuits …
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Two-dimensional materials for electronic applications
… of this unique material and other members of the two-dimensional materials family in electronics, optoelectronics and their interface with the biological systems. At this early stage of 2D materials research, many opportunities and challenges co-exist in this area. This thesis addresses the …
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Waveguide Integrated Optoelectronics Using Two-Dimensional Materials
… of this dissertation is the integration of 2D materials on a silicon photonics platform for optoelectronic applications. The current state of waveguide integrated photodetectors and modulators is reviewed and provides a context for the work detailed in the following chapters. The first …
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Ion Transportation and Adsorption in Two-Dimensional Materials
… of ion transportation and adsorption. 2D materials stand out as one of the promising candidates in this field, due to their ease of fabrication into membranes and electrodes, abundant surface functional groups, ordered galleries, and mechanical flexibility. Hence, it is important to do …
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Next-Generation Flash Memories Using Two-Dimensional Materials
… of next-generation flash memories using two-dimensional materials. Multi-Layer Graphene Nanoribbon (MLGNR) and Graphene are used as the channel and floating gate of the device proposed. The current in the channel is calculated using the Poisson-Schrodinger equation; the numerical …
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Biomolecular transport at and through two-dimensional materials
Two-dimensional (2D) materials have transformed single molecule nanoscale manipulation and molecular detection. Graphene is one such 2D material whose single-atom thickness and high in-plane electrical conductivity enables potential nanopore sensing applications for controllable nanofluidics and …
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Thermoelectric characterization of one- and two- dimensional materials
Thermoelectric materials are useful for a wide range of applications like waste heat removal, solid state cooling, and power generation in space missions etc. A material's thermoelectric figure of merit (zT), which determines its performance in the applications listed above, depends on its Seebeck …
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General Device Integration Strategies for Two-Dimensional Materials
… wealth of unique properties of 2D layered materials (2DLM), no large scale commercial application has been achieved so far. The central challenge hereby is the scalable manufacture of these materials. While mechanical exfoliation, also famously known as the scotch-tape method, leads to …
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Engineering light-matter interaction using two dimensional materials
The recent discovery of a new class of two dimensional(2D) atomic crystals allows the possibility of strong coupling of electromagnetic waves with various collective excitations such as plasmons and phonons, and carries great potential for nanophotonics across the long sought after terahertz to …
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Chemical and biomedical sensors using two dimensional materials
… range of recognizable chemicals and molecules. Two-dimensional materials are perfect candidate as next-generation sensing materials because of their unique electrical, optical, mechanical and chemical properties. In this thesis, the fabrication and device technology of state-of- the-art …
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Polarity governs atomic interaction through two-dimensional materials
Transparency of two-dimensional (2D) materials to inter-molecular interactions has been an unresolved problem. Previous researchers found that water droplets interact with underlying substrates through graphene, as if the graphene is "transparent". However, graphene's transparency determined by …
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Mechanism of remote epitaxy using two dimensional materials
… single crystal substrates. With the rise of two-dimensional (2D) materials since the isolation of graphene in 2004, vdWE has been attempted on 2D materials, transferred, or grown on substrates. However, there has been the notion that the 2D material is the seed layer in van der Waals epitaxy. …
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Computational Study of Two-Dimensional Materials for Energy Applications
Two-dimensional (2D) materials have attracted immense attention due to their novel and exceptional characteristics such as atomically thin body, large surface area to volume ratio, unique electronic properties, and high charge carrier mobilities. This makes 2D materials promising candidates for the …
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MULTIFUNCTIONAL BEHAVIORS OF TWO-DIMENSIONAL MATERIALS AND THEIR COMPOSITES
<p>"Two-dimensional (2D) materials, including graphene, transition metal carbides or nitrides (TMC/Ns), have rich surface chemistry, superb electrical and mechanical properties. These unique properties make them ideal for multifunctional devices. Among them, we focused on graphene and TMC/Ns (i.e., …
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Atom-Based Geometrical Fingerprinting of Conformal Two-Dimensional Materials
<p>The shape of two-dimensional materials plays a significant role on their chemical and physical properties. Two-dimensional materials are basic meshes that are formed by mesh points (vertices) given by atomic positions, and connecting lines (edges) between points given by chemical bonds. …
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Thermal transport in two-dimensional materials and magnetic multilayers
Understanding thermal transport properties of materials is essential for both device applications and materials physics. Thermal conductivity and interface thermal conductance are important engineering parameters for small-scale device applications. In addition, microscopic quantities of how …
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Annular Flow Synthesis and Assembly of Two-Dimensional Materials
The formation mechanisms of two-dimensional materials are poorly understood, limiting their potential in many applications. Hydrodynamic shear and solvent-surface interactions have recently been suggested to play dominant roles in wet synthesis, but have not been properly explored. Here I developed …
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Infrared detectors based on two-dimensional materials and heterostructures
… functionality and energy efficiency. Two-dimensional (2D) materials, a family of nanomaterials with atomic thickness, promise an ideal platform for nanoscience and nanotechnology research on which we are able to engineer functional structures and study their properties at the limit of …
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