Sökning: "Photoinduced absorption"
Visar resultat 6 - 10 av 18 avhandlingar innehållade orden Photoinduced absorption.
6. Synthesis and Photoinduced Electron Transfer of Donor-Sensitizer-Acceptor Systems
Sammanfattning : Artificial systems involving water oxidation and solar cells are promising ways for the conversion of solar energy into fuels and electricity. These systems usually consist of a photosensitizer, an electron donor and / or an electron acceptor. LÄS MER
7. Ultrafast, Non-Equilibrium Electron Transfer Reactions of Molecular Complexes in Solution
Sammanfattning : Photoinduced electron transfer is a fundamentally interesting process; it occurs everywhere in the natural world. Studies on electron transfer shed light on questions about the interaction between molecules and how the dynamics of these can be utilized to steer the electron transfer processes to achieve a desired goal. LÄS MER
8. Single and Accumulative Electron Transfer – Prerequisites for Artificial Photosynthesis
Sammanfattning : Photoinduced electron transfer is involved in a number of photochemical and photobiological processes. One example of this is photosynthesis, where the absorption of sunlight leads to the formation of charge-separated states by electron transfer. LÄS MER
9. Energy migration and charge formation in conjugated polymers
Sammanfattning : The main part of the thesis is concerned with charge photogeneration in conjugated polymers. MeLPPP and POMeOPT films were investigated by transient absorption spectroscopy using different excitation photon energies and light intensities with and without an external electric field. LÄS MER
10. Studies of Charge Separation in Molecular and Molecular-Inorganic Materials Assemblies for Solar Energy Conversion
Sammanfattning : Conversion of solar energy and its storage in the form of chemical bonds is a current scientific and technological challenge. Different approaches to achieve light-harvesting followed by efficient charge separation are the focus on this thesis. LÄS MER
