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 27 for “"Thin film solar cell"”.
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Absorption enhancement of plasmonic thin film solar cell combined with nanocavity
Plasmonic thin film solar cells have been given a lot of attention from researchers for their absorption capabilities. This study focused on the design of plasmonic thin film solar cell so that the absorption can be optimized. The structures were developed with different materials, geometries and …
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Kesterite thin-film solar cell absorbers derived using inhomogeneous CZTS nanoparticles
… integrities of CZTSSe are crucial to derive the solar cell grade kesterite thin-films. Analytical electron microscopy (AEM) allows me to demonstrate the structural and compositional inhomogeneity of the CZTS nanoparticles and CZTSSe thin-films at the nanoscale. For example, the observed forbidden …
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Fabrication and characterization of AgBiS2 and BiSI light harvesting materials for thin film solar cell application
… both known as promising absorbing candidates for thin film solar cell application. Both compounds contain earth abundant and non-toxic elements, facilitating their low cost and large-scale production. In addition, due to the tuneable optical bandgaps by composition ratios (AgBiS2 Eg ~ 1.25-1.5 eV …
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Electron-reflector strategy for CdTe thin-film solar cells
The CdTe thin-film solar cell has a large absorption coefficient and high theoretical efficiency. Moreover, large-area photovoltaic panels can be economically fabricated. These features potentially make the CdTe thin-film solar cell the leading alternative energy source. However, the record CdTe …
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Nanostructured Back Reflectors for Solar Cell Application
… like photovoltaics. High-efficiency and low-cost thin films are a promising alternative to crystalline wafer based solar cells but back reflectors are needed to increase the absorption in these cells. Nano texturing is one of the widely used methods for fabricating solar cell back reflectors. Peak …
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Characterization Of Microstructural And Chemical Features In Cu-in-ga-se-s-based Thin-film Solar Cells
Thin-film solar cells are potentially low-cost devices to convert sunlight into electricity. Improvements in the conversion efficiencies of these cells reduce material utilization cost and make it commercially viable. Solar cells from the Thin-Film Physics Group, ETH Zurich, Switzerland and the …
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Effect of temperature on tunneling and quantum efficiency in cigs solar cells
… The quantum efficiency model, for CIGS solar cells, is discussed. Device modeling and simulation studies of a Cu(In_{1-x},Gax)Se_2 (CIGS) thin film solar cell are carried out. A variety of graded band-gap structures, including space charge region (SCR) grading, back surface region …
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Development of portable solar generator
… energies are necessary to be used, particularly solar energy. It can produce heat or be directly converted into electricity, called photovoltaic (PV) energy. JX Crystals Inc is developing a class of compact portable solar generators using commercially available 32% efficient multifunction solar …
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Fabrication and optimization of N-Cu2O thin film using electrodeposition method for homojunction solar cell
… attention as the alternative material for solar cell application. It is abundant, low cost and non-toxic to the environment. A homojunction Cu2O is said to provide high conversion efficiency for solar cell. However, as Cu2O is a natural p-type semiconductor, it is a challenge to make an …
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Studies of sputtered CdTe and CdSe solar cells
… the most commercially successful polycrystalline thin filmsolar module material. Its low cost, large-area solar module is reshaping the silicondominatedsolar panel market; however, CdTe has much room to improve and thus morefundamental understanding is needed. Current thin film solar cell research …
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Scanning probe microscopy study of thin film solar cells
Thin film solar cells, such as CdTe, CuIn [subscript x] Ga [subscript 1-x] Se₂ (CIGS), Cu₂ZnSnS₄ (CZTS) and Cu₂ZnSnSe₄ (CZTSe), have been intensively studied for their unique features and excellent prospect of mass production in industry. The p-n junction is the most critical part of the thin film …
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Fabrication of nanorod TiO2/CU2O heterostructure thin film
… investigated as a potential material to use in solar cell application. It has good refractive index in visible region, able to function as photocatalyst and produces high transmittance. In this study, the chemical stability of TiO2 and the photon absorbance spectrum of Copper Oxide (Cu2O) were …
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Numerical Analysis and Optimal Design of Efficient Thin-Film Solar Cells with Novel Buffer Layers
The mass production of silicon thin-film solar cells, typically deposited on cost effective ceramic substrates, depends on enhancing the performance and lowering the cost. Among other active layers inside the cell, performance enhancement depends on a layer that separate the light absorbing layers …
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Carrier transport, recombination, and the effects of grain boundaries in polycrystalline cadmium telluride thin films for photovoltaics
… absorber layer in one of the highest efficiency thin film solar cell technologies. Current efficiency records are over 22%. In 2011, CdTe solar cells accounted for ~8% of all solar cells installed. This is because, in part, CdTe has a low degradation rate, high optical absorption coefficient, and …
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Modeling, design and fabrication of thin-film microcrystalline silicon solar cells
The modeling, design and fabrication of low-cost thin-film microcrystalline silicon(ucSi) solar cells is studied in this thesis. The cell, considered in this investigation, utilizes low-cost glass as the substrate and microcrystalline Si (uc-Si) as the active layer. A comprehensive refractive index …
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Research and development of CdTe based thin film PV solar cells
… climate change and health hazards. Silicon based solar cells have dominated the market but it is cost is high due to the manufacturing process. Therefore, the way forward is to develop thin films solar cells using low-cost attractive materials, grown by cheaper, scalable and manufacturable …
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Developing high efficiency Cu2ZnSnS4 (CZTS) thin film solar cells by sputtering
… value as a new promising absorber material for thin film photovoltaics recently. It possesses the merits of earth abundant element constituent, facilitating its low-cost and large-scale production. Moreover, as a high bandgap material (Eg~1.5eV), CZTS is able to be combined with other …
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Growth and characterization of epitaxial silver indium diselenide
Photovoltaics (solar cells) are a key player in the renewable energy frontier, and will become increasingly important as their cost per watt continues to drop, especially if fossil fuel costs increase. One particularly promising photovoltaic technology is based on chalcopyrite-structure …
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Solar Driven Photoelectrochemical Water Splitting For Hydrogen Generation Using Multiple Bandgap Tandem Of Cigs2 Pv Cells And Thin Film Photocatalyst
… to develop efficient CuIn1-xGaxS2 (CIGS2)/CdS thin film solar cells for photoelectrochemical (PEC) water splitting to produce very pure hydrogen and oxygen. Efficiencies obtained using CIGS2 have been lower than those achieved using CuInSe2 and CuIn1-xGaxSe2. The basic limitation in the …
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Isolation of polyacetylene: Exploring the properties of isolated, oriented, and insulated polyacetylene utilizing inclusion crystal chemistry
… transfer. All crystals formed had the same unit cell, which suggests that the same crystal structure was formed by all methods. These crystals were irradiated with 254 or 532 nm light, and the resulting photoproducts in the UICs were probed by Raman spectroscopy. These results showed that both …
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