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 61 for “"thin-film solar cells"”.
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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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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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Solution-processed doping in CdTe thin film solar cells
… Group I and Group V doping in CdTe thin film solar cells allows for efficiency increases and stability improvement in CdTe devices. By varying the doping concentration, activation annealing temperatures, and deposition parameters, the root cause for the increased power conversion …
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Electrodeposition of semiconductors for applications in thin film solar cells
Electrodeposition was used to deposit thin film semiconductor materials for use in solar cell devices. Copper indium diselenide (CuInSe<sub>2</sub>) was deposited from ethylene glycol at 150°C with the aim of improved material properties due to the elevated temperature. The broad nature of the …
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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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Fabrication and analysis of CIGS nanoparticle-based thin film solar cells
… Gallium di-Selenide (CIGS) nanoparticles-based thin film solar cells are presented and discussed. This work explores non-traditional fabrication processes, such as spray-coating for the low-cost and highly-scalable production of CIGS-based solar cells. CIGS nanoparticles were synthesized and …
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Structural and electrical characteristics of CdS-Cu2S thin film solar cells
… and operational stability of front-wall CdS-Cu2S solar cells. In the course of this work -1 cm2 cells were fabricated with conversion efficiency of up to 8% without attempting to reduce reflection losses.The CdS films were produced by vacuum evaporation and the electrical and structural …
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Analisys and Syntesys of Thin-Film Solar Cells with Metallic Nanoparticles
… arbitrary shape. Moreover, the optimization of a thin solar cell with metallic nanoparticles is performed by means of Genetic Algorithms and the Finite Element Method. The goal is to design a solar cell which shows good performances in terms of sunlight absorption. Suitable Genetic Algorithms with …
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Metal oxides as buffer layers in polycrystalline CdTe thin-film solar cells
… cm-1 makes CdTea very attractive absorber for thin-film solar cells. This dissertation explores methods to improve both the front, or emitter, part of the cell and the back contact to the CdTe-based thin-film solar cells. The choice of an n-type emitter partner for CdTe based solar cells is …
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Characterization and modeling of CdCl2 treated CdTe/CdS thin-film solar cells
… in the production of high efficiency CdTe/CdS solar cells is a post-CdTe deposition heat treatment with CdCl2, which can improve performance by promoting CdTe recrystallization, QE response, defect passivation and others. Understanding the effects of the CdCl2 treatment is crucial in order to …
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Thin film solar cells using all-electrodeposited ZnS, CdS and CdTe materials.
… extensive research on the development of thin-film solar cells since the past few decades. This has necessitated the search for low-cost, scalable and manufacturable thin-film semiconductor deposition techniques which in turn has led to the research on electrodeposition technique as a …
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Contact resistance study on polycrystalline silicon thin-film solar cells on glass
Thin-film solar cells are widely recognised to have the potential to compete with fossil fuels in the electricity market due to their low cost per peak Watt. The Thin-Film Group at the University of New South Wales (UNSW) is engaged in developing polycrystalline silicon (poly-Si) thin-film solar …
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Efficiency enhancement and degradation processes in CuxS/CdS thin film solar cells
… and properties of polycrystalline CuxS-CdS solar cells in order to develop an improved understanding of some of the processes which lead to unsatisfactory reproducibility and long term stability of the characteristics of these devices. The cells studied during this project were fabricated …
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Performance limits for colloidal quantum dot and emerging thin-film solar cells
Emerging thin-film solar photovoltaic (PV) technologies can be made lightweight and flexible with simple manufacturing methods, allowing rapid scale-up and ubiquitous deployment of solar power. However, for most emerging PV technologies-including colloidal quantum dots (QDs), perovskites, and …
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Plasmon supported defect absorption in amorphous silicon thin film solar cells and devices
… of hydrogenated amorphous silicon (a-Si:H) thin film solar cell devices is investigated. Small metal nanostructures with lateral dimensions well below 100 nm accompany strong absorption and large electric field amplitudes in their vicinity. This is caused by the localized surface plasmon …
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Electron-beam evaporated polycrystalline silicon thin-film solar cells: paths to better performance
… of this thesis is on polycrystalline silicon thin-film solar cells on glass prepared by electron-beam evaporation and solid-phase crystallisation – an emerging technology with a potential to meet the requirements. It combines the advantages of the mature crystalline silicon technology with low …
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Post-crystallisation treatment and characterisation of polycrystalline silicon thin-film solar cells on glass
Polycrystalline silicon on glass is a possible thin-film material for photovoltaic applications. This thesis performs a detailed experimental investigation of the impacts of two post-crystallisation process steps (rapid thermal annealing and hydrogenation) on the electrical properties of poly-Si on …
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