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 “"Solid State Electronic"”.
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Nuclear Quadrupole Double Resonance Spectroscopy: Studies of Hydrogen Bonding and Metal-Nitrogen Interactions
… much new and useful information regarding the solid state electronic structure of light elements is now becoming known.
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Ultrasonic Continuous Wave Spirometer
… The system uses relatively inexpensive solid state electronic components which implies a minimal of mechanical parts; portability; and a linear, fast response time.</p><p>The system presented in this thesis determines the velocity and temperature fluctuations of the human breath by …
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Novel Structures for Scalable Vertical Gallium Nitride Power Devices
Solid state electronic devices have been the backbone of modern power systems for decades. However, as we enter an era fuelled by renewable energy and defined by pervasive electrification, novel power devices must be developed to address the increasingly stringent demands for high power density and …
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Sixteen-pole programmable synchronous switch
… Virginia Tech as an improvement on the customary solid state electronic or mechanical switch. The author designed and built a 16-pole synchronous switch using a 16 bit microprocessor to provide programmable control on both the opening and closing times for each of the 16 poles of the switch. The …
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Fabrication and transfer assembly of microscale, solid-state light emitting diodes and solar cells for transparent and flexible electronics applications
Efficiency metrics for some solid-state electronic materials systems have progressed to the point where theoretical limits are being approached. Gallium nitride-based light-emitting diodes and silicon solar cells, for example, have achieved such extraordinarily high performance metrics that only …
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Computational modelling of the electronic and structural properties of chalcopyrite-type semiconductors and platinum group metal chalcogenides
… design of materials with appropriate band gaps. Electronic structure calculations based on Density Functional Theory (DFT) have been extensively used to study and to describe such properties of many condensed matter systems. In this work, we have utilized DFT to study the electronic properties of …
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Towards scalable solid-state spin qubits and quantum simulation of thermal states
… quantum control techniques for exchange-coupled solid-state electronic spin qubits in arrays of gate-defined quantum dots. We start by demonstrating theoretically the existence of a discrete time crystal phase in finite Heisenberg spin chains. We present driving pulses that can be used to induce …
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Topological Transport Effects and Pure Spin Currents in Nanostructures
… tools for studying the intricate structure of solid state electronic systems, and have many applications in our current information technology. In particular, the electronic system reflects the crystal symmetry and the orbital structure of the atoms of a given solid, and thus is crucial to …
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Ab initio calculations of spin wave excitation spectra from time-dependent density functional theory
… theory (DFT). Its central theorem is that the state of a quantum-mechanical many-electron system is not only given through the many-particle wavefunction, but the properties of the system are specified as well through the electron density. This lays the foundation for practical computer …
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First-principles investigations of transition metal hyperdoped silicon and germanium for intermediate band engineering
… transistors, rectifiers, microchips, and other solid-state electronic devices. On top of that, its optoelectronic properties are largely utilized in photovoltaics, photodiodes, and photodetectors. However, in many optoelectronic devices silicon is limited by its band gap of 1.12 eV (_ = 1,110 …