Search for dissertations about: "Pulsed plasma"

Showing result 1 - 5 of 53 swedish dissertations containing the words Pulsed plasma.

  2. 1. Plasma Synthesis and Self-Assembly of Magnetic Nanoparticles

    Author : Sebastian Ekeroth; Ulf Helmersson; Nils Brenning; Franz Faupel; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plasma; Synthesis; Self-Assembly; Magnetic; Nanoparticles;

    Abstract : Nanomaterials are important tools for enabling technological progress as they can provide dramatically different properties as compared to the bulk counterparts. The field of nanoparticles is one of the most investigated within nanomaterials, thanks to the existing, relatively simple, means of manufacturing. READ MORE

  4. 2. Fundamentals of High Power Impulse Magnetron Sputtering

    Author : Johan Böhlmark; Ulf Helmersson; André Anders; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plasma; Pulsed plasma; High Power Pulsed Magnetron Sputtering; Plasma Characterization; Physics; Fysik;

    Abstract : In plasma assisted thin film growth, control over the energy and direction of the incoming species is desired. If the growth species are ionized this can be achieved by the use of a substrate bias or a magnetic field. Ions may be accelerated by an applied potential, whereas neutral particles may not. READ MORE

  5. 3. Towards optical diagnostics and control in aerotaxy semiconductor nanowire growth

    Author : Per Samuelsson; Förbränningsfysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; nanoparticles; nanowires; aerotaxy; laser diagnostics; absorption; laser-induced fluorescence; photoluminescence; spark ablation; plasma; Fysicumarkivet A:2021:Samuelsson;

    Abstract : Aerosol growth of semiconductor nanowires has the potential to dramatically lower the cost of for solar cell production. The objective of the work was to study the growth of aerosol nanoparticles and nanowires, in order to understand the chemical and physical processes involved. READ MORE

  6. 4. Engineered ion-bombardment as a tool in thin film deposition

    Author : Rommel Paulo B. Viloan; Ulf Helmersson; Daniel Lundin; Rainer Hippler; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; HiPIMS; Bipolar HiPIMS; Ion-bombardment; Thin film;

    Abstract : Energetic-ion bombardment has become an attractive route to modify the crystal growth and deposit high quality thin films. In high-power impulse magnetron sputtering (HiPIMS) where the discharge is characterized by a significant amount of ions of the sputter-ejected atoms, energetic-ion bombardment effects could not be underestimated. READ MORE

  7. 5. Characterization of metal plasma streams from arc discharges in a reactive environment

    Author : Johanna Rosén; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Alumina is a material used in many applications mainly due to its chemical inertness and wear resistance at high temperatures. Despite this, the understanding of alumina thin films is not satisfactory, as can be concluded from the diverging material properties reported in the literature. READ MORE