Sökning: "Kostas Sarakinos"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Kostas Sarakinos.

  1. 1. HiPIMS-based Novel Deposition Processes for Thin Films

    Författare :Asim Aijaz; Ulf Helmersson; Kostas Sarakinos; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In this research, high power impulse magnetron sputtering (HiPIMS) based new deposition processes are introduced to address; the issue of low degree of ionization of C in magnetron sputtering discharges, and the difficulty encountered in thin film deposition on complex-shaped surfaces. The issue of low degree of C ionization is addressed by introducing a new strategy which is based on promoting the electron impact ionization ofC by increasing the electron temperature in the plasma discharge using Ne, instead of conventionally used Ar. LÄS MER

  3. 2. Synthesis of Carbon-based and Metal-Oxide Thin Films using High Power Impulse Magnetron Sputtering

    Författare :Asim Aijaz; Ulf Helmersson; Kostas Sarakinos; Günter Bräuer; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The work presented in this thesis deals with synthesis of carbon-based as well as metal-oxide thin films using highly ionized plasmas. The principal deposition method employed was high power impulse magnetron sputtering (HiPIMS). LÄS MER

  4. 3. Nanoscale structure forming processes : Metal thin films grown far-from-equilibrium

    Författare :Viktor Elofsson; Kostas Sarakinos; Robert D. Boyd; Diederik Depla; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Thin film growth from the vapor phase has for a long time intrigued researchers endeavouring to unravel and understand atomistic surface processes that govern film formation. Their motivation has not been purely scientific, but also driven by numerous applications where this understanding is paramount to knowledge-based design of novel film materials with tailored properties. LÄS MER

  5. 4. Thin Film Growth using Pulsed and Highly Ionized Vapor Fluxes

    Författare :Viktor Elofsson; Kostas Sarakinos; Jones Alami; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Microstructure and morphology of thin films are decisive for many of their resulting properties. To be able to tailor these properties, and thus the film functionality, a fundamental understanding of thin film growth needs to be acquired. LÄS MER

  7. 5. Metal film growth on weakly-interacting substrates : Stochastic simulations and analytical modelling

    Författare :Víctor Gervilla Palomar; Kostas Sarakinos; Georgios Almyras; Pär Olsson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Thin films are nanoscale layers of material, with exotic properties useful in diverse areas, ranging from biomedicine to nanoelectronics and surface protection. Film properties are not only determined by their chemical composition, but also by their microstructure and roughness, features that depend crucially on the growth process due to the inherent out-of equilibrium nature of the film deposition techniques. LÄS MER