Sökning: "susanne fysik"
Visar resultat 1 - 5 av 29 avhandlingar innehållade orden susanne fysik.
1. Electronic Transport in Materials
Sammanfattning : Transport properties within the Boltzmann transport equation for metallic multi-layer structures as well as bulk materials, were the prime topic of this work. Ab initio total energy calculations for Hydrogen loaded metallic multi-layers were performed in order to shed some light onto problem of H depleted layers at the interfaces that have been experimentally observed. LÄS MER
2. Extinctions and Ecosystem Stability
Sammanfattning : Human society's expansion and demand for both biotic and abiotic natural resources exert a large pressure on ecosystems around the globe. Ecosystems are complex networks of species interacting with each other and their physical surroundings. LÄS MER
3. (In-)Stability of LiPF6-based Electrolytes for Lithium-ion Batteries
Sammanfattning : The state of the art lithium-ion batteries present in most portable electronics consist of the salt LiPF6, organic solvents such as ethylene carbonate and dimethyl carbonate (commonly seen as EC/DMC), and finally, a number of additives - all components enclosed by different kinds of electrode chemistries.Despite their commercial success, all LiPF6 based electrolytes suffer from poor chemical and thermal stability. LÄS MER
4. Defects and Impurities in CdTe : An ab Initio Study
Sammanfattning : In this thesis defects and impurities in CdTe have been studied with ab initio methods. CdTe is a II-VI semiconductor with many important applications such as γ- and X-ray detectors, solar cells and medical imaging. LÄS MER
5. Organic Electrode Battery Materials : A Journey from Quantum Mechanics to Artificial Intelligence
Sammanfattning : Batteries have become an irreplaceable technology in human life as society becomes progressively more dependent on electricity. The demand for novel battery technologies has increased fast, especially with the popularisation of different portable devices. LÄS MER