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 9 of 9 for “"Diffusion limited growth"”.
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Study of Pt-Ge interaction using thin film and lateral diffusion couples
… using both conventional thin films and lateral diffusion couples. The investigation was carried out using such established techniques as XRD, RBS and SEM. Using results from both thin film and lateral diffusion couples, a comparison has been made of the behaviour of Pt-Ge system in parameters …
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The growth and characterization of III-V compound semiconductor materials by metalorganic chemical vapor deposition and laser photochemical vapor deposition
… chemical vapor deposition (MOCVD) for the growth of optical and electronic devices, it is a process for which the details of the reaction mechanisms are not well understood. Efforts aimed at gaining insight into growth-related matters will be described here and involve deposition in both …
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Electrodeposited macroporous vanadium oxide Li-ion battery materials
… substrates. The electrodeposition follows a diffusion limited growth mode to form 3D porous crystalline V2O5 after removal of a colloid photonic crystal template of self-assembled polystyrene spheres. We show that at high charge and discharge rates, charge storage in macroporous electrode …
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Solution Kinetics and Impact Ionization in the Indium-Gallium - Arsenide Phosphide Alloy System (Crystal Growth, Photodetectors)
This thesis covers topics in crystal growth, solution kinetics, device fabrication, and device physics in the InGaAsP/InP material system. It is divided into three sections. Chapter I is a detailed account of the liquid phase epitaxial (LPE) crystal growth of In(,1-x)Ga(,x)As(,y)P(,1-y) layers …
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Interfacial Fluid Dynamics in Porous Media
… can be reminiscent of dielectric breakdown, diffusion-limited growth of crystals, or percolation clusters in polymer gelation, depending on the relative affinity of the two fluids to the porous medium (wettability) and the balance of viscous and capillary forces. Examining this rich system at …
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A phase-field study of ternary multiphase microstructures
… in the free energy functional, and a generalized diffusion potential equal to the chemical potential at equilibrium was defined as the driving force for diffusion. Problematic pair-wise treatment of phases at interfaces and triple junctions was avoided, and a cutoff barrier was introduced to …
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Phase Behavior of Poly(Caprolactone) Based Polymer Blends As Langmuir Films at the Air/Water Interface
… increasing molar mass produces a maximum average growth rate at intermediate molar mass. PCL was blended with poly(t-butyl acrylate) (PtBA) to study the influence of PtBA on the morphologies of PCL crystals grown in monolayers. For PCL-rich blends, BAM studies reveal dendritic morphologies of PCL …
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Nanoscale Confinement Effects on Poly(ε-Caprolactone) Crystallization at the Air/Water Interface & Surfactant Interactions with Phospholipid Bilayers
… bulky tert-butyl ester groups around the crystal growth fronts. In contrast, regular, nearly round-shaped lamellar crystals were obtained for PCL triacids. These morphological differences between PCL triacids and PCL triesters were molar mass dependent and attributed to differences in dipole …
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Quantitative Theories of Nanocrystal Growth Processes
… and enhance our understanding of nanocrystal growth. Chapter 4, 5 and 6 comprise all the novel research conducted for this thesis, with Chapters 1, 2 and 3 serving as necessary background to understanding the current state of the art. In Chapter 4, we develop a quantitative describe of the …