Search for dissertations about: "Risto Nieminen"
Found 4 swedish dissertations containing the words Risto Nieminen.
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1. Thermal properties of materials from first principles
Abstract : In the search of clean and efficient energy sources intermediate temperature solid oxide fuel cells are among the prime candidates. What sets the limit of their efficiency is the solid electrolyte. A promising material for the electrolyte is ceria. READ MORE
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2. Development of theoretical approaches for post-silicon information processing
Abstract : Despite knowing the fundamental equations in most of the physics research areas, still there is an unceasing need for theoretical method development, thanks to the more and more challenging problems addressed by the research community. The investigation of post-silicon, non-classical information processing is one of the new and rapidly developing areas that requires tremendous amount of theoretical support, new understanding, and accurate theoretical predictions. READ MORE
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3. Electronic Structure of intrinsic and doped Silicon Carbide and Silicon
Abstract : Silicon (Si) is the most exploited material within the semiconductor device technology, mainly due to its relatively good electron and hole mobilities and the simplicity to fabricate and process the material. Silicon carbide (SiC) has, however, a wider band gap, a higher breakdown electric field strength, and a higher thermal conductivity, which makes SiC one of the most promising materials for high-power devices. READ MORE
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4. A Theoretical Perspective on the Chemical Bonding and Structure of Transition Metal Carbides and Multilayers
Abstract : The present thesis deals with a theoretical description of issues regarding chemical bonding, structure and stability of transition metal carbides and multilayered structures. First principles density functional theory has been used extensively to investigate the properties of alloyed solutions of transition metal carbides. READ MORE
