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 65 for “"solar energy conversion"”.
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Solar energy conversion via photovoltaics and photocatalysis
… and ecofriendly chemical processes for the conversion of energy and matter, especially with respect to carbon management, is growing rapidly. Therefore, a search for high-performance solar energy conversion systems to end the current carbon economy era is of paramount importance in both …
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Thermoelectrics and aerogels for solar energy conversion systems
… about climate change, the world's growing energy needs, and energy independence are driving demand for solar energy conversion technologies. Solar thermal electricity generation has the potential to ll this demand. Solar thermal technology could also be used to displace fossil fuels in …
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Solar Energy Conversion and Control Using Organic Photovoltaic Cells
… system that can predict the performance of solar arrays in various environmental conditions. The simulation has been carried out in Matlab/Simulink, and upon entering the cell’s parameters, it provides key electrical characteristics such as the cell’s I-V curve and efficiency information. …
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The Role of Mirror Errors in Solar Energy Conversion
Sunlight is an abundant and renewable source of energy, and the expanding solar industry uses many different methods to convert this energy to work. Some of these methods (engines) use mirrors to reflect radiation. However, the mirrors are not perfect and have slope, shape, tracking, and …
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The Role of Mirror Errors in Solar Energy Conversion
Sunlight is an abundant and renewable source of energy, and the expanding solar industry uses many different methods to convert this energy to work. Some of these methods (engines) use mirrors to reflect radiation. However, the mirrors are not perfect and have slope, shape, tracking, and …
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Full spectrum utilization for high-efficiency solar energy conversion
Today, two dominant strategies for solar energy harvesting exist: solar thermal and photovoltaic. Solar thermal energy harvesting offers the distinct ability to both utilize the full solar spectrum and provide dispatchable electrical power to the grid. By contrast, the generation of power via the …
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Theoretical investigation of solar energy conversion and water oxidation catalysis
Solar energy conversion and water oxidation catalysis are two great scientific and engineering challenges that will play pivotal roles in a future sustainable energy economy. In this work, I apply electronic structure theory and molecular dynamics simulation methods to understand some of the …
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Development and characterization of solar energy conversion devices based on nanocomposite semiconductors
… study of the development and characterization of solar energy conversion devices based on nanocomposite semiconductors. The PhD research is focused on third generation solar cells, namely in dye−sensitized solar cells (DSSCs) and perovskite solar cells (PSCs). The innovation of this study is …
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Quantum confinement effects on light absorption in Germanium for solar energy conversion
The world demand for energy is continuously increasing with a rate that will soon become unsustainable given the current exploitation of energy sources (such as fossil fuels). In addition, it should be figured out that most of commonly used energy resource are limited and that humankind has …
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Molecular Design and Photophysical Characterization of Synthetic Bacteriochlorins for Solar Energy Conversion and Photodynamic Therapy
… the design of synthetic bacteriochlorins for solar-energy conversion and photomedicine.</p>
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Nanostructural engineering of vapor-processed organic photovoltaics for efficient solar energy conversion from any Surface
… they need robust and lightweightrenewable energy conversion technologies that can be easily transported with high yield from our manufacturing centers to their (often) rural homes. Few conventional photovoltaic technologies are robust enough to fill this need, however organic photovoltaics …
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M13 virus-enabled assembly of 3D nanostructured composites : synthesis and applications in solar energy conversion and electrochemical energy storage devices
… of generating, storing and transporting energy in responsible ways that minimize impact to the environment. Significant effort has been spent to develop new technologies capable of (1) efficiently converting renewable energy into usable electricity, (2) storing energy into high …
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Design, Synthesis and Spectroscopy of Highly Absorptive Chromophores Based on the Bis(tridentate)metal-ethyne-(porphinato)metal Molecular Framework for Solar Energy Conversion
… photosensitizers are in great demand for solar energy conversion applications that include dye-sensitized solar cells, photoelectrochemical cells, and photo-redox catalysis. In this dissertation, the design, synthesis and spectroscopy of a series of different highly absorptive chromophoric …
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New Polyazine-Bridged Ru(II),Rh(III) and Ru(II),Rh(I) Supramolecular Photocatalysts for Water Reduction to Hydrogen Applicable for Solar Energy Conversion and Mechanistic Investigation of the Photocatalytic Cycle
The goal of this research is to test the design constraints of active dpp-bridged RuII,RhIII (dpp = 2,3-bis(2-pyridyl)pyrazine)) supramolecular photocatalysts for water reduction to H2 and provide mechanistic insights into the catalytic cycle. Two member of a new RuII,RhIII motifs with only one …
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Electron transfer in solution : nonadiabatic dynamics and applications to catalysis
… which are fundamental in energy storage and solar energy conversion, among other applications. In this thesis, we first apply density functional theory (DFT) to study the mechanistic intermediates of the oxygen evolution reaction (OER) on metal-oxide redox catalysts. From …
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Three-dimensional nanotube arrays for solar energy harvesting and production of solar fuels
… to provide a solution towards a renewable energy future. Fabricating high-efficiency photovoltaic devices largely rely on nanostructuring the photoabsorber layers due to the ability of improving photoabsorption, photocurrent generation and transport in nanometer scale. Vertically aligned, …
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Optical modeling of organic electronic devices
… revolutionized the technologies for displays and solar energy conversion. Due to the large transition dipoles, the localization of excited states or excitons in organic materials necessitates optical models that extend beyond classical far field methods. In this thesis we propose an extended near …
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Improving solar thermal receiver performance via spectral and directional selectivity
Adoption of renewable energy technologies has accelerated rapidly in recent years due to growing energy demand and concerns over climate change. Among renewable energy sources, solar energy conversion systems are particularly promising due to the abundance of solar energy reaching Earth. Despite …
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