Sökning: "photoelectrochemistry"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet photoelectrochemistry.

  1. 1. Quantum photoelectrochemistry : Theoretical studies of organic adsorbates on metal oxides surfaces

    Författare :Petter Persson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; Quantum chemistry; photoelectrochemistry; metal oxide surfaces; organic adsorbates; Kvantkemi; Quantum chemistry; Kvantkemi; Quantum Chemistry; kvantkemi;

    Sammanfattning : Interactions between organic molecules and transition metal oxide surfaces have been investigated by means of quantum chemical calculations. The studies have been aimed at understanding electrode-adsorbate interactions in photoelectrochemical devices, such as dye-sensitized solar cells. LÄS MER

  3. 2. In Search of the Holy Grail of Photoelectrochemistry : A Study of Thin Film Electrodes for Solar Hydrogen Generation

    Författare :Torbjörn Lindgren; Sten-Eric Lindquist; Claes-Göran Granqvist; Bengt Kasemo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; photoelectrochemistry; watersplitting; artificial photosynthesis; hydrogen; thin film; nanostructured; Fysik; Physics; Fysik;

    Sammanfattning : Hydrogen is a wanted energy carrier in a future society less dependent of fossil fuels. This thesis investigates the possibilities of using solar energy to convert water into hydrogen and oxygen, so called artificial photosynthesis. LÄS MER

  4. 3. Charge Transport Properties in Nanostructured Electrodes of Metal Oxides

    Författare :Niclas Beermann; James Durrant; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Iron oxide; titanium dioxide; nanostructured; photoelectrochemistry; charge transport; morphology; incorporation; Fysik; Physics; Fysik; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : In the last decade research in the field of nanostructured metal oxide thin film electrodes for various applications, e.g., solar cells and hydrogen production, has been of great interest. In this thesis, interfacial and bulk electrochemical properties and charge transport properties of nanostructured thin films have been investigated. LÄS MER

  5. 4. Artificial Water Splitting: Ruthenium Complexes for Water Oxidation

    Författare :Lele Duan; Licheng Sun; Matthias Beller; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; water oxidation; ruthenium; electrochemistry; DFT calculation; photoelectrochemistry; negatively charged ligand; catalyst;

    Sammanfattning : This thesis concerns the development and study of Ru-based water oxidation catalysts (WOCs) which are the essential components for solar energy conversion to fuels. The first chapter gives a general introduction about the field of homogenous water oxidation catalysis, including the catalytic mechanisms and the catalytic activities of some selected WOCs as well as the concerns of catalyst design. LÄS MER

  7. 5. Nanostructured ZnO electrodes for solar cell applications

    Författare :Karin Keis; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Zinc oxide; nanostructured; mesoporous; photoelectrochemistry; solar cells; Fysik; Physics; Fysik; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : 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). LÄS MER