Sökning: "nanotrees"

Hittade 3 avhandlingar innehållade ordet nanotrees.

  1. 1. Transmission Electron Microscopy of III-V Nanowires and Nanotrees

    Författare :Lisa Karlsson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Technological sciences; Naturvetenskap; Natural science; nanowires; TEM; III-V; Teknik;

    Sammanfattning : In this work, the morphology and crystal structure of epitaxial semiconductor nanowire structures grown by metal-organic vapour phase epitaxy (MOVPE) are studied by electron microscopy methods. In particular, the three-dimensional structure of nanowires and nanotrees has been characterised by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and multi-slice (MS) simulations. LÄS MER

  3. 2. Bioelectronic Nanosensor Devices for Environmental and Biomedical Analysis

    Författare :Klas Risveden; Tillämpad biokemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Regional Ion Sensitive Field Effect Transistor; Region Ion Sensitive Field Effect Transistor; RISFET; Conducting channel; Bioelectronic Nanosensor; Bioelectronic; Biosensor; Nanosensor; Chemical Sensor; Sensor; Semiconductor sensor; Single molecule trapping; Scaling; Protein trapping; Nanoelectronics; Lab-on-a-chip; pico-ammeter; Nanobiosensor; Sample Applicator; Sequential Batch Analysis; Sequential Batch Analysis System; SBAS; Nanowire; Branched nanowire structure; Nanotree; Nanorod; Nano processing; Micro processing; Electron Beam Lithography; EBL; UV-lithography; Molecular Imprinting; DUV-lithography; Moleculary Imprinted Polymers; MIP; Biomimetics; QCM; Biomimetic sensor; Quartz Crystal Microbalance; QCM-D; Nanoparticles; Acetylcholine esterase; Glucose oxidase; Glucose; Gluconolactone; Propranolol; Gluconate; Carbofuran; Neurotoxic; Environmental analysis; Biomedical Analysis; Biotechnology; Medicine; Pesticide; Food Technology; Analyis; Flow Injection Analysis; FIA; Scanning Probe Microscopy; Scanning Kelvin Probe Microscopy; SPM; KPM; AFM; SKM; KPFM; SKPM; Nanostructures.; Atomic Force Microscopy; KFM;

    Sammanfattning : A new type of Bioelectronic Nanosensor Device with potential applications in medicine,biotechnology and environmental analysis was designed. The nanosensor is based on RISFET (Regional Ion Sensitive Field Effect Transistor) technology. LÄS MER

  4. 3. Transmission Electron Microscopy of Semiconductor Nanowires

    Författare :Magnus Larsson; Centrum för analys och syntes; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER