Search for dissertations about: "ion implantation"

Showing result 1 - 5 of 33 swedish dissertations containing the words ion implantation.

  1. 1. Applications of Ion Beam Methods in Silicide/Si and Silicide/GaAs Nanometre Structures

    Author : Yanwen Zhang; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Phase formation; Nanometre structures; silicide; detection efficiency; Ion Beam Analysis; Ion Beam Synthesis; Time-of-Flight Energy Elastic Recoil Detection ToF-E ERD ; implantation; Fysicumarkivet A:1998:Zhang; Kärnfysik; Nuclear physics; Detla E-E ERD;

    Abstract : Ion beam methods are used to analyse material (Ion Beam Analysis, IBA) and to modify the target (Ion Beam Modification of Materials, IBMM). In this thesis, ion beams have been used in various IBA techniques to investigate the surface nanometre structures, and also in an ion beam synthesis (IBS) technique to form thin films and to modify material properties. READ MORE

  2. 2. Luminescence of Silicon Nanoparticles Synthesized by Ion Implantation

    Author : Thawatchart Chulapakorn; Anders Hallén; Daniel Primetzhofer; Yanwen Zhang; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Silicon nanoparticle; Photoluminescence; Ion beam synthesis; Ion beam analysis; Fysik; Physics;

    Abstract : Silicon nanoparticles (SiNPs) have been shown to display luminescence in the visible range with a peak wavelength depending on the nanoparticle size. This finding is of potential interest for integration of optoelectronic devices in semiconductor technology. READ MORE

  3. 3. Magnetotransport Studies of Mn Ion-Implanted Nanowires

    Author : Waldomiro Paschoal; Fasta tillståndets fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hopping conduction; ferromagnetism; ion-implantation; Nanowire; GaMnAs; magnetoresistance; Fysicumarkivet A:2014:Paschoal;

    Abstract : This thesis focuses on the magnetotransport properties of highly Mn-doped crystalline GaAs nanowires. The GaAs nanowires were first grown by metal-organic vapor phase epitaxy from gold seed particles, and subsequently implanted with Mn ions under varying conditions, e.g., ion fluence and acceleration voltage. READ MORE

  4. 4. Capacitance Spectroscopy of Point Defects in Silicon and Silicon Carbide

    Author : Denny Åberg; KTH; []
    Keywords : capacitance spectrocopy; deep levels; deep level transient spectroscopy; thermal donors; thermal double donors; ultra shallow thermal donors; chemical kinetics; silicon carbide; ion implantation; implantation induced defects; implantation induced pas;

    Abstract : .... READ MORE

  5. 5. Low and High Energy Ion Beams in Nanotechnology

    Author : Thomas Winzell; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ion implantation; magnetic materials; ERDA; nanometer structures; Nuclear physics; MeV Ions; lithography; Kärnfysik; Fysicumarkivet A:2000:Winzell;

    Abstract : In this thesis, two ways of fabrication of nanometer-sized semiconductor features are presented. Low Energy Ion Implantation (LEII) has been used to create shallow (sub-50 nm) and laterally small (5 m m – 200 nm) features by 10 keV As+ doping of B background doped Si. READ MORE