Sökning: "Brena"
Hittade 5 avhandlingar innehållade ordet Brena.
1. First principles modeling of soft X-ray spectroscopy of complex systems
Sammanfattning : The electronic structures of complex systems have been studied by theoretical calculations of soft x-ray spectroscopies like x-ray photoelectron spectroscopy, near edge x-ray absorption fine structure, and x-ray emission spectroscopies. A new approach based on time dependent density functional theory has been developed for the calculation of shake-up satellites associated with photoelectron spectra. LÄS MER
2. Reversible immobilization of enzymes using agarose-bound group-specific Ligands
Sammanfattning : .... LÄS MER
3. Molecules and Light : A Journey into the World of Theoretical Spectroscopy
Sammanfattning : Two of the main technological challenges of the century are the production of clean energy, on the one hand, and the development of new materials for electronic and spintronic applications that could increase the speed and the storage capacity of regular electronic devices, on the other hand. Organic materials, including fullerenes, organic polymers and organic molecules with metal centres are promising candidates for low-cost, flexible and clean technologies that can address these challenges. LÄS MER
4. The Electronic Structure of Organic Molecular Materials : Theoretical and Spectroscopic Investigations
Sammanfattning : In the present thesis the electronic properties of two organic molecules were studied by means of density functional theory (DFT) in connection to their possible applications in organic photovoltaics and molecular spintronics respectively.The first analysed system is the C60 derivative PCBM extensively used in polymer solar cells for the charge separation process. LÄS MER
5. Complex Excitations in Advanced Functional Materials
Sammanfattning : Understanding the fundamental electronic properties of materials is a key step to develop innovations in many fields of technology. For example, this has allowed to design molecular based devices like organic field effect transistors, organic solar cells and molecular switches. LÄS MER