Search for dissertations about: "doping in zno thesis"
Showing result 1 - 5 of 21 swedish dissertations containing the words doping in zno thesis.
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1. Electronic Structures and Energy Level Alignment in Mesoscopic Solar Cells : A Hard and Soft X-ray Photoelectron Spectroscopy Study
Abstract : Photoelectron spectroscopy is an experimental method to study the electronic structure in matter. In this thesis, a combination of soft and hard X-ray based photoelectron spectroscopy has been used to obtain atomic level understanding of electronic structures and energy level alignments in mesoscopic solar cells. READ MORE
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2. Synthesis of ZnO and transition metals doped ZnO nanostructures, their characterization and sensing applications
Abstract : Nanotechnology is a technology of the design and the applications of nanoscale materials with their fundamentally new properties and functions. Nanosensor devices based on nanomaterials provide very fast response, low-cost, long-life time, easy to use for unskilled users, and provide high-efficiency. READ MORE
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3. Chemically Modified Metal Oxide Nanostructures Electrodes for Sensing and Energy Conversion
Abstract : The goal of this thesis is the development of scalable, low cost synthesis of metal oxide nanostructures based electrodes and to correlate the chemical modifications with their energy conversion performance. Methods in energy conversion in this thesis have focused on two aspects; a potentiometric chemical sensor was used to determine the analytical concentration of some components of the analyte solution such as dopamine, glucose and glutamate molecules. READ MORE
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4. Nanostructured ZnO electrodes for solar cell applications
Abstract : In this thesis the possibilities of using nanostructured dye-sensitized ZnO electrodes for solar energy conversion in photoelectrochemical solar cells are investigated. In order to characterize the photoelectrochemical properties of unsensitized ZnO films, measurements were performed using a short laser pulse (laser flash induced current transients) and under continuous illumination (steady-state). READ MORE
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5. Density Functional Theory in Computational Materials Science
Abstract : The present thesis is concerned to the application of first-principles self-consistent total-energy calculations within the density functional theory on different topics in materials science. Crystallographic phase-transitions under high-pressure has been study for TiO2, FeI2, Fe3O4, Ti, the heavy alkali metals Cs and Rb, and C3N4. READ MORE