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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 12 of 12 for “"Wide band gap semiconductors"”.
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Diamond Schottky barrier diodes
Research on wide band gap semiconductors suitable for power electronic devices has spread rapidly in the last decade. The remarkable results exhibited by silicon carbide (SiC) Schottky batTier diodes (SBDs), commercially available since 2001, showed the potential of wide band gap semiconductors for …
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Design of Hybrid Inverters Using Wideband Gap Semiconductors for Microgrid Application
… future. This thesis explores the integration of wide band gap semiconductors for the power stage in these systems, along with the analysis of hybrid inverter topologies and structures. The goal of this thesis is to help as a resource with the decision process in components and design of systems …
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Dielectric materials by Atomic Layer Deposition for microelectronic applications
… as high k dielectrics. These materials have been widely employed as insulator layer in the new generation of power devices, such as dynamic random access memories (DRAMs) and in metal-oxide-semiconductor field effect transistors (MOSFETs). In this context, the PhD research activity has been …
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Process Dependence of Defects and Dopants in Wide Band Gap Semiconductor and Oxides
<p>Wide band gap semiconductors and oxides have attracted much attention in the last decade because of their various applications to next generation opto- and micro-electronics. My research focuses on the process dependence of the defects and dopants in wide band gap semiconductors and oxides of …
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Surface and mechanical stress effects in AlGaN/GaN high electron mobility transistors
… (GaN) belongs to a class of materials called wide band-gap semiconductors. In recent years, the versatile nature of this material has been exploited for a wide range of applications from solid state lighting to RF and microwave communication, as well as high power switching. The first part of …
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Band engineering of metal oxide heterostructures for catalysis applications
… metal oxides are used as catalysts for a wide variety of industrially and environmentally important reactions such as the selective oxidation of hydrocarbons and alcohols and the selective catalytic reduction of nitrogen oxides. The support often plays an important role in the activity and …
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High Voltage Synchronous Rectifier Design Considerations
The advent of wide band-gap semiconductors in power electronics has led to the scope of efficient power conversion being pushed further than ever before. This development has allowed for systems to operate at higher and higher voltages than previously achieved. One area of consideration during this …
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Two-dimensional transition metal dichalcogenides as next generation semiconductor materials
… 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, their properties differ from that of their bulk counterpart. The tunability of TMD bandgaps …
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Modeling and Design of Betavoltaic Batteries
… beta emitting radioactive decay energy using semiconductors. The literature results suggest that a better model is needed to design a betavoltaic battery. This dissertation creates a comprehensive model that includes all of the important factors that impact betavoltaic battery output and …
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Hybrid-gate deep depletion mosfet high-k zro2/diamond-based power devices
… green electronic systems will be reached by wide band gap or ultra wide band gap semiconductors since they can provide larger blocking capabilities, higher performance-cost ratios and they can reduce the thermal requirements. Among the candidates, diamond is found to be the ultimate material …
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Ab-initio calculations for dilute magnetic semiconductors
… and the magnetic properties of dilute magnetic semiconductors (DMS). In particular we aim at the understanding of the complex exchange interactions in these systems. Our calculations are based on density functional theory, being ideally suited for a description of the material specific …
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Design and development of radiation-resistant and low-noise semiconductor transistors for applications in high frequency communication systems
… up to investigation of phase noise of a X-band HEMT-based oscillator. This work is separated into five parts. In the first part, basics of fluctuation phenomena in semiconductors are described along with a discussion of theoretical models, which are most applicable in case of investigation …