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 70 for “"2D material"”.
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INTERFACE ENGINEERING OF 2D MATERIAL NANODEVICES
… to the large surface-to-volume ration of 2D materials, their electrical performance is highly sensitive to extrinsic factors arising from surface and interface in the device configuration. In this thesis, by adopting crested substrates, high-performance transition metal dichalcogenides …
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Printable 2d Material Optoelectronics and Photonics
Graphene and structurally similar 2-dimensional (2d) materials such as transition metal dichalcogenides (TMDs) and black phosphorus (BP) hold enormous potential for the next generation optoelectronics and photonics. Pairing 2d materials with printing is an emerging cost-effective large-scale device …
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2d Material Inks for Printed Electronics
… and high-throughput production. Combining 2d materials with printing is an emerging, cost-effective and large-scale fabrication strategy of their devices. However, successful scale-up and adoption of printing as an ubiquitous fabrication method has been limited due to the lack of diversity …
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2D material devices for low power logic and memory applications
… devices (task 2) based on two-dimensional (2D) materials. In the first task, electrical characteristics 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 …
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Electronic devices based on 2D material: fabrication, characterization and analysis
Two-dimensional (2D) crystals are layered materials with strong in-plane covalent bonding and weak Van der Waals interlayer coupling. Stable 2D materials range from insulators, to semiconductors, to metals and even superconductors. Compared to their bulk counterparts, 2D materials show many …
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2d-Material Dispersion and Printing: From Laboratory to Commercial Scale
… of production. Incorporating two-dimensional (2d)-materials into inks suited for mature printing techniques has emerged as a viable method for cost-effective and large-scale device fabrication. Many demonstrations are conducted on a small scale, but successful upscaling that would enable the …
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Structure Function Relation of Porous 2D Material via SGCMC Simulation and Statistical Models
… predict the strength of a two-dimensional porous material without running the simulation. We generate samples by randomly placing circular pores with radii drawn from a log-normal distribution until we reach the target porosity and run our SGCMC simulations on the generated samples to create a …
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Charge transport mechanism within 2D material films and its role on field effect transistor and capacitor technology
Graphene and other layered materials such as transition metal dichalcogenides (TMDs) and MXenes have opened up a plethora of untapped potential for better device architectures and performance. One of the areas where 2D materials are regarded as disruptive technology is field-effect transistors …
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Gallium Nitride Remote Epitaxy
… smaller and faster electronics have pushed the material towards its physical limitations. Compound semiconductor materials are growing in importance because of their ability to offer superior performance across a wide range of applications in optoelectronics and power electronics. Unfortunately, …
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Graphene-Assisted gan membranes formation /
… cm$^2$, which could be used as robot skin. This material was composed of polyimide plastic layers. While this engineering breakthrough is fascinating, certain applications require higher carrier mobilities and physical properties that do not degrade under harsh environmental conditions. …
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High performance MoS₂ transistors based on wafer-scale low-temperature MOCVD synthesis
… conventional silicon circuits, two-dimensional (2D) material devices are believed to be very promising, due to their high mobility, relatively large band gaps, atom-level thickness, performance comparable to the one of silicon devices, and great potential in realizing 3D integration. However, …
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Mechanical self-assembly of deformed 2D materials for advanced functionalities
… three-dimensionality to two-dimensional (2D) materials opened new possibilities and novel applications in material system design. Extraordinary intrinsic properties of 2D materials have attracted scientific research communities, and various 2D material – based structures and devices have …
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Fabrication and integration of graphene field effect transistors for advanced biosensing platforms
Since the rise of two-dimensional (2D) nanomaterials such as transition metal dichalcogenides (TMDCs) and graphene derivatives, numerous applications studies have been carried out prompted by the remarkable material properties they have. A variety of investigations have established unique potential …
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Artificial Intelligence-Aided Synthesis and Characterization of 2D Materials
… To address this challenge, two-dimensional (2D) materials have emerged as promising candidates for next-generation transistors, to maintain the pace of Moore's Law—doubling the number of transistors every 18 months. The integration of AI and automation in material science has recently drawn …
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Large-scale integration of graphene optoelectronic devices in photonic integrated circuits
Graphene is a 2D material recognized for its extremely high mobility and novel optoelectronic properties. In this thesis, we argue in favor of integrating graphene as an active optoelectronic material alongside optical waveguides on the back-end of CMOS ICs for photonic links in access network and …
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Experimental studies of heat transport across material interfaces at the nano and micro scales
… it is important to have precise knowledge of materials' thermal properties at the nano and micro scales. Here we present a series of experimental studies of heat transport for two different types of material: a two dimensional (2D) material such as MoS2 and micron scale particles. We used …
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Genomics and epigenomics using 2D nanopores
… with nanopore sensors made of two-dimensional (2D) materials such as graphene and MoS$_2$. We label each DNA methylated site with a methyl-CpG binding domain protein (MBD1), and combine molecular dynamics simulations with electronic transport calculations to investigate the translocation of the …
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Optical spectroscopy study of correlated electron physics in ABC-stacked trilayer graphene
In recent years, people use 2D material as a building block to fabricate all kinds of multilayer stack devices, some of which host strongly correlated physics such as twist bilayer graphene and ABC-stack trilayer graphene. Mott insulator and superconductivity are found in these systems, which …
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Mechanism of remote epitaxy using two dimensional materials
… 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. Notwithstanding, …
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THERMAL AND THERMOELECTRIC PROPERTIES OF TWO-DIMENSIONAL HETEROSTRUCTURES
… of graphene, atomically thin two-dimensional (2D) materials have progressed rapidly due to their interesting physics and potential applications. Van der Waals heterostructures with one 2D material stacked on another, are being established for devices with new functionalities and improved …
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