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 10 of 10 for “"High-power devices"”.
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On the generation, dissipation, and transport of heat in GaN materials for advanced high-power devices
This Dissertation was approved for publication on 2020-01-31 at 09:45.
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Analysis of Zincblende-Phase GaN, Cubic-Phase SiC, and GaAs MESFETs Including a Full-Band Monte Carlo Simulator
… semiconductors have great potential as high-power microwave devices, many gaps remain in the knowledge about their properties. The simulations in this work are designed to give insight into the performance of microwave high-power devices constructed from the materials in question. The …
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Development of the Advanced Emitter Turn-Off (ETO) Thyristor
Advancements in the power electronics systems have been directly related to the availability of improved power semiconductor devices. The device performance greatly determines the efficiency, reliability, volume, and cost of the power electronics system. This dissertation is dedicated to develop an …
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Process Development and Characterization of AlGaN/GaN Heterostructure Field-Effect Transistors
… related processing issues will be discussed. Devices were then fabricated on epitaxial layers grown on sapphire substrates and on n-type, p-type, and insulating SiC. While sapphire is the substrate of choice for the nitrides, SiC substrates are better suited for high-power devices due to their …
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Efficiency droop mitigation and quantum efficiency enhancement for nitride Light-Emitting Diodes
… considerable impact in solid state lighting and high speed high power devices. InGaN-based LEDs have been widely used for all types of displays in TVs, computers, cell phones, etc. More and more high power LEDs have also been introduced in general lighting market. Once widely used, such LEDs …
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Surfaces and interfaces characterization for the development of diamond power electronic devices
… of humanity with increasing energy demands. High power elements in the electric grid such as rectifiers are currently based on silicon. Design of new architectures has kept silicon-based devices on top of the high-power devices market. However, the inherent limitations of silicon have lead …
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MOVPE and characterization of GaN-based structures on alternative substrates
… based on the AlInGaN material system offer high chemical and thermal stability and bandgaps between 0.8 eV and 6.2 eV. They are suited for high frequency and high power devices as well as for light emitting diodes, which currently cover the ultra violet to green spectral region. In …
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Investigation of Power Semiconductor Devices for High Frequency High Density Power Converters
The next generation of power converters not only must meet the characteristics demanded by the load, but also has to meet some specific requirements like limited space and high ambient temperature etc. This needs the power converter to achieve high power density and high temperature operation. It …