Sökning: "overgrowth"

Visar resultat 1 - 5 av 44 avhandlingar innehållade ordet overgrowth.

  1. 1. Electrical Characterization of Integrated InAs Nano-Structures

    Detta är en avhandling från Lund University (Media-Tryck)

    Författare :Gvidas Astromskas; Lunds universitet.; Lund University.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DLTS; Fermi level pinning; epitaxial growth; threshold voltage; nanowire capacitance; overgrowth; Hall mobility; GaSb; InAs;

    Sammanfattning : This thesis analyzes the electrical properties of InAs nano-structures, that are integrated into different materials and geometries. The thesis describes integration related issues of InAs, the epitaxial synthesis of the InAs nano-structures and summarizes experimental techniques for analysis of electrical properties of the integrated structures. LÄS MER

  2. 2. External Fixation of Femoral Fractures in Children Clinical, radiological and functional outcome and cost analysis

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Hanne Hedin; Uppsala universitet.; [2003]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Femoral fractures; children; external fixation; overgrowth; malunion; isokinetic muscle strength; cost analysis; Medicin; MEDICINE Dermatology and venerology; clinical genetics; internal medicine; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin; Orthopaedics; ortopedi;

    Sammanfattning : The overall aim of this thesis was to evaluate the outcome when treating children for displaced femoral fractures with external fixation.In a consecutive and prospective study during the period 1993-2000, 96 children aged 3-15 years with 98 displaced femoral fractures were treated with external fixation and early mobilisation. The mean age was 8. LÄS MER

  3. 3. Three-Dimensional Metal-Semiconductor Heterostructures for Device Applications

    Detta är en avhandling från Lars-Erik Wernersson Norbergsg. 3 223 54 Lund

    Författare :Lars-Erik Wernersson; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [1998]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Schottky contacts; space-charge spectroscopy; ballistic transport; Coulomb repulsion; electron interference; resonant tunnelling; lateral confinement; heterojunction permeable base transistor; resonant tunnelling diodes; Fysicumarkivet A:1998:Wernersson; Fysik; Physics; resonant tun; epitaxial overgrowth;

    Sammanfattning : Fabrication and characterisation of buried metal contacts in compound semiconductors are demonstrated. The contacts have been investigated due to their usage both as gates in transistors and as active or passive elements in novel devices. LÄS MER

  4. 4. Epitaxial Lateral Overgrowth of Indium Phosphide and Its Application in Heteroepitaxy

    Detta är en avhandling från Kista : Mikroelektronik och informationsteknik

    Författare :Yanting Sun; KTH.; [2003]
    Nyckelord :electronics; electrical; material science;

    Sammanfattning : Monolithic integration of optoelectronics on silicon is adream. This thesis deals with the studies on the heteroepitaxyof indium phosphide on silicon substrate towards making thatdream come true. Materials growth issues, characterization anddefect identification are addressed. LÄS MER

  5. 5. Investigation of New Concepts and Solutions for Silicon Nanophotonics

    Detta är en avhandling från Stockholm : KTH

    Författare :Zhechao Wang; KTH.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Planar integrated circuit; silicon photonics; slot waveguide; finite-difference time-domain; waveguide grating coupler; ring resonator; polarization diversity scheme; polarization beam splitter; polarization rotator; hybrid silicon laser; epitaxial lateral overgrowth; chemical-mechanical polishing.; NATURAL SCIENCES Physics Other physics Optics; NATURVETENSKAP Fysik Övrig fysik Optik;

    Sammanfattning : Nowadays, silicon photonics is a widely studied research topic. Its high-index-contrast and compatibility with the complementary metal-oxide-semiconductor technology make it a promising platform for low cost high density integration. LÄS MER