Search for dissertations about: "chemical beam epitaxy"

Showing result 1 - 5 of 15 swedish dissertations containing the words chemical beam epitaxy.

  1. 1. Low-temperature deposition of epitaxial transition metal carbide films and superlattices using C60 as carbon source

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Hans Högberg; Uppsala universitet.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; fullerene; transition metals; carbides; low-temperature epitaxy; superlattices; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : The transition metal carbides are chemical compounds with a unique set of propertiesused in many thin film applications. In this work, thin films of group 4-5 transitionmetal carbides and superlattices were deposited at low temperatures by simultaneousevaporation of C60 using either metal e-beam evaporation or d.c. magnetron sputtering. READ MORE

  2. 2. Transmission Electron Microscopy of Semiconductor Nanowires

    University dissertation from Polymer och Materialkemi Kemiska Institutionen

    Author : Magnus Larsson; Lunds universitet.; Lund University.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nanowires; magnetic resonance; supraconductors; magnetic and optical properties; electrical; Condensed matter:electronic structure; fasjämvikt; kristallografi; egenskaper termiska och mekaniska ; crystallography; phase equilibria; Kondenserade materiens egenskaper:struktur; akustik; Condensed matter:stucture; thermal and mechanical properties; optics; acoustics; Elektromagnetism; optik; Electromagnetism; Scanning Tunneling Microscopy; Nanomaterials; III-V Semiconductors; Transmission Electron Microscopy; Inorganic chemistry; Oorganisk kemi; relaxation; spectroscopy; Kondenserade materiens egenskaper:elektronstruktur; egenskaper elektriska; magnetiska och optiska ; supraledare; magnetisk resonans; spektroskopi; materialteknik; Material technology; Materiallära; Semiconductory physics; Halvledarfysik;

    Abstract : Semiconductor nanowires are studied by using transmission electron microscopy (TEM) based methods in this work. In the first section, the growth mechanism of gallium arsenide nanowires grown by chemical beam epitaxy is investigated. The nanowires are epitaxially grown from a gallium arsenide substrate by using gold seed particles as catalysts. READ MORE

  3. 3. RHEED and RD studies of III-V semiconductors

    University dissertation from Solid State Physics

    Author : Bert Junno; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; reflectance anisotropy; reflectance difference; RHEED; reflection high energy electron diffraction; III-V semiconductors; GaP; GaAs; InP; InAs; reflection high energy electron diffraction RHEED ; reflectance difference RD ; phase diagrams; surface reconstructions; Fysicumarkivet A:1996:Junno; Halvledarfysik; CBE GaAs; Semiconductory physics; chemical beam epitaxy; surface phase diagrams; RDS; RD; RAS;

    Abstract : The published papers and introductory part of this thesis concentrate on the in-situ characterization of (001) surfaces of GaAs, InAs, InP and GaP. The experimental tools used in these studies were a chemical beam epitaxy (CBE) machine equipped with a reflection high energy electron (RHEED) system and a reflectance difference (RD) optical set-up. READ MORE

  4. 4. Semiconductor Hetero- and Nanostructures

    University dissertation from Solid State Physics

    Author : Jonas Ohlsson; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Heterostructures; Nanowhiskers; Semiconductory physics; Chemical Beam Epitaxy; Nanostructures; Halvledarfysik; Fysicumarkivet A:2001:Ohlsson;

    Abstract : In this thesis, chemical beam epitaxy was used to fabricate nm-sized crystalline structures. Most of the systems were based on heterostructures, i.e., combinations of different kinds of crystalline materials. READ MORE

  5. 5. Electron Transport in Semiconductor Nanowires

    University dissertation from Solid State Physics, Lund University

    Author : Mikael Björk; Lunds universitet.; Lund University.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; heterostructures; single electron transistors; resonant tunneling; quantum dots; weak antilocalization; Halvledarfysik; field effect transistors; Semiconductory physics; Fysicumarkivet A:2004:Björk; Low-dimensional structures; nanowires; chemical beam epitaxy;

    Abstract : Popular Abstract in Swedish Denna avhandling behandlar tillväxt av och elektriska mätningar på halvledande nanotrådar av indiumarsenid (InAs) och kombinationer av InAs och indiumfosfid (InP). En nanotråd är som namnet antyder en tunn solid tråd, som påminner om ett hårstrå fast med en diameter på typiskt 50 nm (en nanometer är en miljarddels meter, 10^-9 m) och längden kan vara allt från 100 nm upp till flera mikrometer. READ MORE