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 “"Cell thickness"”.
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The Impact of substrate texture on cell behavior
Traditionally, cell studies have focused mainly on the effects of biochemical signals on cellular behaviour; however, there is a growing interest in investigating the effects of physical cues on the behaviour of the cells. Development of fabrication techniques has allowed researchers to design …
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Band edge lasing in chiral nematic liquid crystals
… and may be extended with optimisation of cell thickness,electrode geometry, and initial lasing wavelength. Accurate descriptions of the refractive index profile of the liquid crystal and perovskite are developed and included in mathematical modelling, in addition to descriptions of the …
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Investigation of Light Induced Degradation in Promising Photovoltaic Grade Si and Development of Porous Silicon Anti-Reflection Coatings for Silicon Solar Cells
… degradation reduced from 0.75% to 0.24% when the cell thickness was reduced from 378 to 157m. The presence of light induced degradation in ribbon silicon solar cells is documented for the first time in this thesis. Trap generation and annihilation are observed in high lifetime regions of …
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Rational design and synthesis of zeolite acid catalysts for applications in biomass conversion
… A1-containing zeolite nanosheets of single-unit-cell thickness are synthesized using diquarternary ammonium surfactants. Characterization reveals high external surface area and mesoporosity and strong external acid sites. MFI nanosheets have higher stability and selectivity to larger olefins and …
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Non-collinear spin textures in oxides for spintronics and superconducting spintronics
… SrRuO3 is instead likely caused by single unit cell thickness variations in films resulting from substrate miscut creating an inhomogeneous anomalous Hall effect. 4. Theory: numerical modelling of non-collinear ferromagnetic Josephson junctions. I develop a numerical model of magnetic Josephson …
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Performance and thermal impact analysis of single cell solid oxide fuel cell by utilizing different fuels and its upgradation to stack level
… of a single planar and stack of solid oxide fuel cell (SOFC) is developed by coupling dynamics of electrochemical reacting flows, heat transfer, and thermal impacts (thermal strains and stresses) of solid electrolyte and porous electrodes for analysing the cell performance. The model is tested and …
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Characterization and simulation of three-dimensional solid-state solar cells
… more) resulted in extremely thin absorber solar cells, or ETA-cells. Such ETA-layers need to be applied to a nano-structured substrate. Dye-sensitized solar cells (DSSC’s) already fully use this potential but encounter a lot of long-term stability problems. In the cells studied in this thesis, …
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The anaemia of pregnancy: A report on the haematological study of 48 cases of pregnancy, with review of the literature
… the less commonly noted physical features of red cell fragility and red cell size during normal pregnancy, and to investigate these features in mild and severe grades of anaemia during pregnancy, followed through to the puerperium. At the same time, full haematological investigations were carried …
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Transport of molecules through and on carbon nanostructures
… permeation fluxes due to their atomic or unit cell thickness. Established modeling approaches for membrane transport consider transport through a finite and continuum thickness, and therefore they do not apply to the emerging field of 2D membranes, motivating the development of new theoretical …
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Optical and electrical optimization by advanced characterization of monolithic perovskite/silicon tandem solar cells
Hybrid metal-halide perovskite solar cells have experienced a tremendous development within a short time period. In 2009 the first perovskite single-junction solar cell with a power conversion efficiency (PCE) of 3.8% was presented. Just eleven years later, in year 2020, a PCE of 25.5% was …