Sökning: "electronic-structure calculations"
Visar resultat 1 - 5 av 227 avhandlingar innehållade orden electronic-structure calculations.
1. Electronic Structure of Some Zincblende Semiconductor Surfaces
Sammanfattning : The main aim of this thesis is to study and understand the surface electronic structure of compound semiconductors (ex. GaAs, InP, ..etc. LÄS MER
2. Parallelization of dynamic algorithms for electronic structure calculations
Sammanfattning : The aim of electronic structure calculations is to simulate behavior of complex materials by resolving interactions between electrons and nuclei in atoms at the level of quantum mechanics. Progress in the field allows to reduce the computational complexity of the solution methods to linear so that the computational time scales proportionally to the size of the physical system. LÄS MER
3. Electronic Structure Calculations of Point Defects in Semiconductors
Sammanfattning : In this thesis point defects in semiconductors are studied by electronic structure calculations. Results are presented for the stability and equilibrium concentrations of native defects in GaP, InP, InAs, and InSb, for the entire range of doping conditions and stoichiometry. LÄS MER
4. Reactivity of Transition-Metal Compounds from Electronic Structure
Sammanfattning : Transition-metal carbides (TMC's), nitrides, and sulfides belong to the class of materials known as transition-metal compounds (TMX's). Besides having intriguing properties, these materials are relevant for, e.g., growth and catalysis. LÄS MER
5. Modeling hybrid halide perovskites for solar cell applications : Simulations of electronic structure and X-ray spectroscopy
Sammanfattning : Over the past 13 years, perovskites have become a very promising candidate in the search for cheap and effective photovoltaic materials for solar cells. Perovskite solar cell power conversion efficiency has increased from 3. LÄS MER