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Visar resultat 1 - 5 av 89 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. In-situ electrochemical STM studies of uplex stainless steel

    Författare :Marc Fermenia; KTH; []
    Nyckelord :In-situ; Local dissolution; Electrochemical; STM; Duplex stainless stee; Acidicchloride solution;

    Sammanfattning : .... LÄS MER

  3. 2. Characterisation of III-V semiconductor nanowires by in-situ transmission electron microscopy

    Författare :Magnus Larsson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; STM-TEM; semiconductor; STM; nanowires; VSS mechanism; Electron microscopy;

    Sammanfattning : [abstract missing].... LÄS MER

  4. 3. Thin Mn silicide and germanide layers studied by photoemission and STM

    Författare :Joakim Hirvonen Grytzelius; Lars Johansson; Hanmin Zhang; Leif Johansson; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semiconductor surfaces; Si 111 ; Ge 111 ; manganese; Mn; silicides; germanides; atomic structure; electronic structure; magnetic properties; LEED; ARPES; XPS; core-level spectroscopy; STM; STS; XMCD; Physics; Fysik;

    Sammanfattning : The research presented in this thesis concerns experimental studies of thin manganese silicide and germanide layers, grown by solid phase epitaxy on the Si(111)7×7 and the Ge(111)c(2×8) surfaces, respectively. The atomic and electronic structures, as well as growth modes of the epitaxial Mn-Si and Mn-Ge layers, were investigated by low-energy electron diffraction (LEED), angle-resolved photoelectron spectroscopy (ARPES), core-level spectroscopy (CLS), and scanning tunneling microscopy and spectroscopy (STM and STS). LÄS MER

  5. 4. Development of new characterization techniques for III-V nanowire devices

    Författare :Olof Persson; Synkrotronljusfysik; []
    Nyckelord :STM; XPS; Semiconductor nanowires; nanowire devices; top contact mode; HAXPES; Fysicumarkivet A:2017:Persson;

    Sammanfattning : This dissertation presents the new methods and techniques developed to investigate the properties of nanowires (NWs) and NW devices and the results obtained using these methods. The growth and characterization of NWs have become a large research field because NWs have been shown to improve the properties of many semiconductor applications such as transistors, solar cells, and light emitting diodes. LÄS MER

  7. 5. Growth and Characterization of ZnO Nanocrystals

    Författare :Leif KE Ericsson; Kjell O Magnusson; Lars SO Johansson; Hanmin M Zhang; Omer Nour; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; ZnO; Nanocrystals; Surface physics; XPS; SEM; AES; AFM; STM; Physics; Fysik;

    Sammanfattning : The understanding of surfaces of materials is of crucial importance to all of us. Considering nanocrystals (NCs), that have a large surface to bulk ratio, the surfaces become even more important. Therefore, it is important to understand the fundamental surface properties in order to use NCs efficiently in applications. LÄS MER