Sökning: "two dimensional electron gas"
Visar resultat 11 - 15 av 55 avhandlingar innehållade orden two dimensional electron gas.
11. Quantum transport and spin effects in lateral semiconductor nanostructures and graphene
Sammanfattning : This thesis studies electron spin phenomena in lateral semi-conductor quantum dots/anti-dots and electron conductance in graphene nanoribbons by numerical modelling. In paper I we have investigated spin-dependent transport through open quantum dots, i.e., dots strongly coupled to their leads, within the Hubbard model. LÄS MER
12. Infection biology of the plant pathogenic fungus Bipolaris sorokiniana
Sammanfattning : Bipolaris sorokiniana is a fungal pathogen causing severe disease mainly in wheat and barley worldwide. In this thesis two aspects of the infection process were investigated: the adhesion mechanism of the fungus and the role of the non-host specific phytotoxin prehelminthosporol (PHL) in the disease. Adhesion of B. LÄS MER
13. Computational Studies of 2D Materials : Application to Energy Storage and Electron Transport in Nanoscale Devices
Sammanfattning : The field of two-dimensional (2D) layered materials provides a new platform for studying diverse physical phenomena that are scientifically interesting and relevant for technological applications. Novel applications in electronics and energy storage harness the unique electronic, optical, and mechanical properties of 2D materials for design of crucial components. LÄS MER
14. Molecular beam epitaxy growth and characterization of GaN, AlN and AlGaN/GaN heterostructures
Sammanfattning : The III-nitride materials, consisting of Al, Ga, In and N, have several physical properties that make them attractive for semiconductor devices in electronic and optic applications. A wide range of direct energy bandgaps (0.7 eV - 6.1 eV) can be obtained. LÄS MER
15. Initial growth of GaN on sapphire and growth of AlGaN on GaN by molecular beam epitaxy
Sammanfattning : .... LÄS MER