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 49 for “"Electrochemical Deposition"”.
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Electrochemical Deposition of Copper and Zinc Nanomaterials at Polypyrrole Thin Films
The electrodeposition of copper- or zinc-based nanomaterials was performed on the top of polypyrrole-polystyrene sulfonate (PPy-PSS) thin films from their respective sulfate solutions in presence of dissolved oxygen. Three main processes were responsible for the formation of the nanomaterials, …
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Multiscale Approaches for Simulation of Nucleation, Growth, and Additive Chemistry During Electrochemical Deposition of Thin Metal Films
… of nucleation events on an electrode undergoing deposition by electrolysis under the influence of mass transport. The simulations were carried out by first, calculating the time-dependent concentration profiles in the vicinity of a hemispherical nucleus, then using the concentration profiles as …
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Fabrication and Magnetic Property Investigation of Metallic Nanowire Arrays
… were synthesized through template-directed electrochemical deposition method. The dual-bath technique was employed in fabrication of superlattice nanowire arrays. Anodized alumina membrane (AAM) and Ion Track-etched Polycarbonate Membrane was used as the fabrication templates. The specific …
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Development of manganese oxide based nanostructures by wet chemical methods for enhanced energy storage and photocatalytic applications
… manganese oxides exhibit a variety of distinct electrochemical and dye degradation applications. This work mainly comprised of development of manganese oxide nanostructures via wet chemical approaches such as electrochemical deposition and solvothermal techniques. The impacts of deposition …
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Synthesis, Characterization and Properties of Nanostructured Materials by Template-Directed Method
… such as gold and nickel were fabricated by electrochemical deposition method directed by the Anodic Alumina Membrane (AAO) as a template. A so called "polymer-free" method has been investigated to make striped nanowires with superlattice structure. Various methods have been used to …
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Fabrication and Characterization of Tunable Conducting Polymer Micro- and Nano-Structures for Bioelectronics
… detailing the relationship between conditions of electrochemical deposition and the properties of the resulting CP films or microstructures. The first project elucidated the quantitative relationships between electrochemical deposition parameters and the surface nanostructure of …
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ENHANCEMENT OF SATURATION BOILING OF PF-5060 DIELECTRIC LIQUID ON MICROPOROUS SURFACES
… (80—230 \uf06dm), fabricated using conventional electrochemical deposition at high current density, have different morphology and microstructure. The PF-5060 liquid is chemically inert, environmentally friendly, and has low enough saturation temperature (~ 54oC at 0.10 MPa). This helps maintain …
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The effect of free chlorine and monochloramine on lead in drinking water and epitaxial electrodeposition of tin sulfide
<p>"Electrochemical deposition is utilized in various electronic and photovoltaic applications and in the protective coating industries. This dissertation primarily addresses the environmental aspects of electrochemical deposition. In the first part of this study, Pb dissolution in drinking water …
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Hydrogen storage in pt/carbon nanotube sheets
… types of CNT sheets using two processes: electrodeposition (ED) using a DC power source and electrochemical deposition under cyclic voltammetry (CV). To verify platinum deposition on the surface of the CNT sheets, a Scanning Electron Microscope (SEM) was used to obtain images, and Energy …
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Modeling of pattern dependencies in the fabrication of multilevel copper metallization
… in various processes, especially copper Electrochemical Deposition (ECD) and Chemical-Mechanical Planarization (CMP), is a major problem in interconnects. An integrated pattern dependent chip-scale model for multilevel copper metallization is contributed to help understand and meet …
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Preparation and characterization of praseodymium oxide films and powders.
… generated on stainless steel substrates. The electrochemical deposition was performed in the cathode compartment of a divided electrochemical cell with a regular three-electrode configuration. The green films obtained by electrodeposition were then annealed at high temperatures for 1-3 hours. …
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Electrochemical synthesis of functional nanowires
… with lengths up to 10_m were synthesized through electrochemical deposition in the pores of anodic aluminium oxide (AAO) and polycarbonate track-etched (PCTE) templates. With the work focusing on CdSe nanowires, results from the cyclic electrodeposition/stripping method was reported with different …
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Fabrication and characterisation of copper nanowires electrochemically deposited in etched ion-track membranes
… copper nanowires have been created by electrochemical deposition of copper in etched ion-track membranes. 30 µm thick polycarbonate foils were irradiated at the UNILAC (GSI, Darmstadt) with Au and Pb ions of kinetic energy 1-2 GeV with ?uences between 1 and 10^9 ions/cm^2. The latent …
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Development of enzymatic biofuel cell based on carbon nanotube electrodes on porous silicon
… immobilized on the CNT walls and tips using an electrochemical technique. Cyclic voltammetry showed well-defined redox peaks which indicated that the enzyme (GOx and laccase) were successfully immobilized on the CNTs. The amperometric responses of the laccase electrode upon additions of bubbled …
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Fabrication and characterisation of bismuth nanowires
… bismuth nanowires were created by electrochemical deposition in ion track-etched polycarbonate membranes. Wires fabricated potentiostatically possess a strong <110> texture which becomes more pronounced for wires deposited at lower overpotentials, at higher temperatures, and in …
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Multiscale modeling of thin film deposition processes
Ionized physical vapor deposition (IPVD) and electrochemical deposition (ECD) are two major thin film deposition processes in the microelectronics industry. The ion fluxes with high kinetic energies in IPVD process involve complex surface interactions that affect overall topology of the microscale …
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Optical Antenna Photovoltaics & Making Metallic Nano-rods
… MNR fabrication is achieved through templated electrochemical deposition, and investigated with SEM and VIS-IR spectroscopy. MNR samples have been specifically designed to be incorporated as a photoactive material for a novel photovoltaic cell. Through fine control of their length, the MNR …
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Optical Characterization of Electrochemically Self-Assembled Compound Semiconductor Nanowires
… and CdS nanowires. The former are produced by electrochemical deposition of Zn inside nanoporous alumina films containing regimented arrays of 10nm, 25nm and 50 nm diameter pores, followed by room temperature chemical oxidization. Fluorescence spectroscopy shows different characteristics …
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Fabrication and optimization of N-Cu2O thin film using electrodeposition method for homojunction solar cell
… In this study, n-Cu2O was prepared by using electrochemical deposition. The structural, morphological, optical and electrical properties of the electrodeposited Cu2O were evaluated after optimizing the parameters for Cu2O fabrication. Structural characterization of the deposited thin film was …
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Spontaneous metal deposition from organic solutions for electronic materials applications
<p>"Electrochemical deposition (ECD) has been used widely in the electronics industry. A novel "galvanic deposition" process was used for spontaneous and selective ECD of metal from organic solutions in contrast to the more conventional aqueous media. The more noble metal ions loaded in the organic …
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