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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 17 of 17 for “"Hexagonal Boron Nitride (h-BN)"”.
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Design, Fabrication, and Characterization of Metals Reinforced with Two-Dimensional (2D) Materials
… Ni, Cu, and NiTi reinforced with graphene or 2D hexagonal boron nitride h-BN is studied using experimental techniques and molecular dynamics (MD) simulations.
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The synthesis, characterization, and application of carborane-cluster based macrocycles and boron nitride nanosheets in photovoltaics
… limit.</p> <p>Chapter 2: Recent experiments with hexagonal boron nitride (h-BN) have shown</p> <p>successful covalent and non-covalent functionalization of these nanostructures. Furthermore, experiments have also shown that the non-covalent functionalization of boron nitride nanosheets (BNNS) with …
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Large-scale growth, fluorination, clean transfer, and layering of graphene and related nanomaterials
… fluorination), and transfer of graphene and hexagonal boron nitride (h-BN). Further, this document explores new avenues in the large-area, heterogeneous layering of graphene, h-BN, and related nanomaterials like nanoscale water and biomolecules. It is determined that monolayer, high-quality …
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Atomic-scale assessment of graphene-substrate interactions, grain boundaries, and materials for heterostructures
… and growth of graphene’s insulating analog, hexagonal boron nitride (h-BN). These experimental studies are fundamental in nature, but they highlight parameters relevant to applications. Chemical vapor deposition (CVD) growth of graphene on Cu foil provides one path to wafer-scale graphene, …
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Inkjet Printing of 2d Materials on Flexible and Rigid Substrates
… such as graphene, transition metal carbides, nitrides, or carbonitrides (MXenes) and hexagonal boron nitride (h-BN) hold enormous potential for the next generation printable electronics. When these materials are formulated into inkjet printable inks, they can be incorporated with current …
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AN EXPLORATION OF DEFECT-BASED SINGLE PHOTON SOURCES: ZINC OXIDE AND HEXAGONAL BORON NITRIDE
… candidates in SiC, GaN, WSe2, WS2, ZnO, and hexagonal boron nitride (h-BN). In this thesis we focus our attention on single photon emission from defect in ZnO and h-BN. In the case of ZnO, the single-photon emission is in the range of 560 – 720 nm and typically exhibits two broad spectral …
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Synthesis of graphene and h-BN by chemical vapor deposition and their transfer process
… a research field of 2-D materials including hexagonal boron nitride (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 …
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Two-dimensional material enhanced dielectric and conductive inks for printable electronics
… elements and capacitive touch sensors. I utilise hexagonal boron nitride (h-BN) as a nanofiller to enhance the dielectric constant of polyurethane (PU) polymer inks and achieve a two-fold increase in εr by adding only 6.4 mg/mL h-BN, while keeping the resulting composite flexible and optically …
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2d Material Inks for Printed Electronics
… layers using wide bandgap 2d materials like hexagonal boron nitride (h-BN), which represent an important material in printed electronics applications, for example, in parallel plate capacitors and thin film transistors. Similarly, 2d material printing has thus far been demonstrated on flat …
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Two-dimensional material inks and composites for printed electronics and energy
… (2D) materials such as graphene and single layer hexagonal boron nitride (h-BN) which are produced by liquid phase exfoliation for use in printed electronics and energy composite applications. In Chapter 2 I give a broad overview of the electrical, mechanical and optical properties of 2D materials …
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Advancements in Hexagonal Boron Nitride for Thermal Neutron Detection Applications
Hexagonal boron nitride (h-BN) possesses many unique physical properties which combined have made h-BN an incredibly attractive material for a vast array of technologically significant applications. Some of these properties include extremely wide bandgap, strong optical absorption of above bandgap …
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An Approach Towards Sustainable Synthesis of MXene and High-Performance Cementitious Composites
… and thermal management by incorporating hexagonal boron nitride (h-BN) into cement matrices. Additionally, it examines the application of direct ink writing (DIW) in creating reinforced cement and polyvinyl alcohol (PVA) structures, aiming to boost their impact resistance and energy …
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Substrate-dependent high-field transport and self-heating in graphene transistors
… effect of the supporting insulator (e.g. SiO2, BN) thickness on temperature maximum (hot spot) formation. Our findings showed average and maximum temperatures of GFETs scale differently due to competing electrostatic and heat sinking effects. Self-heating in GFETs causes current degradation (up …
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Superconducting Electron Transport in Graphene-Based Josephson Junctions
… regime, we worked with graphene encapsulated in hexagonal-Boron Nitride (h-BN), which greatly improves the transport properties of graphene. Here, we study the ballistic Josephson junctions in the short and long junction limits, determined by comparing the length of the junction with the induced …
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Organometallic Functionalization of 2D Nanomaterials for Energy and Medical Applications
… with particular emphasis on graphene and hexagonal boron nitride (h-BN). The central theme of this work is the use of coordination-based chemistry to engineer nanoscale interfaces while preserving lattice planarity and charge transport properties that are critical for electronic and …
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MoS2 on Gold: achieving extremely high exfoliation yield and optical contrast for Van der Waals monolayers
… work carried out to increase the contrast of hexagonal Boron Nitride (h-BN) on these heterostructures. Variations in the contrast between samples were also seen to be enhanced with contrast. Contributions from possible sources of these variations are identified to understand the errors present …
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General Device Integration Strategies for Two-Dimensional Materials
… to produce large areas of graphene (Gr) or hexagonal boron nitride (h-BN), which are two members of the family of 2DLMs, in the laboratory using CVD. Often the only limit to the size of the sample is dictated by the dimensions of available equipment. Most studies have targeted the …