Sökning: "Ir 111"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Ir 111.

  1. 1. Effects of Carbon Functionalization on Hydrogen Oxidation Underneath Graphene Flakes

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Johannes Stubbe; [2020]
    Nyckelord :Graphene; Functionanlization; in situ AP-XPS; water formation; time resolved; catalysts; kinetics; Physics and Astronomy;

    Sammanfattning : Effects of carbon functionalization on the catalytic properties of the space underneath epitaxial graphene flakes on Ir(111) are investigated with Ambient Pressure X-ray Photoelectron Spectroscopy studies of oxygen hydrogenation. The 0. LÄS MER

  3. 2. Electron Assisted Growth of Graphene atop Ir(111) supported Hexagonal Boron Nitride

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Lassi Linnala; [2019]
    Nyckelord :Two-dimensional materials; Two-dimensional heterostructures; Graphene; hexagonal Boron Nitride; STM; LEED; Physics and Astronomy;

    Sammanfattning : Vertical heterostructures between graphene (Gr) and hexagonal boron nitride (hBN) have attracted a great deal of interest, due to their potential applications in the semiconductor industry as new and superior transistor materials. The direct growth of the heterostucture still remains challenging and in this bachelor thesis, I report a novel electron assisted growth technique, which is used to attempt to grow Gr atop hBN atop an Ir(111) single crystal surface. LÄS MER

  4. 3. Water assisted CO intercalation underneath Ir(111) supported graphene studied with scanning tunneling microscopy

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Kaivalya Mevada; [2018]
    Nyckelord :Graphene; Intercalation; STM; CVD; TPG; Physics and Astronomy;

    Sammanfattning : Graphene have attracted attention recently due to its unique properties and opportunities for development of high performance carbon based devices. The intercalation, absorption and reactions processes of small molecules above and below the graphene islands hold the key for new perspectives in catalysis, molecular sensors and other technologies. LÄS MER

  5. 4. How ionized radicals bind to Ir(111) supported graphene

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Författare :David Johansson; [2018]
    Nyckelord :Graphene; Radicals; Physics and Astronomy;

    Sammanfattning : In this thesis radical adsorption onto Ir(111) supported graphene at room temperature is studied using scanning tunneling microscopy. The radicals were formed in by thermal cleavage of C2H4 molecules. LÄS MER

  7. 5. Electron Assisted Growth of h-BN on Gr/Ir(111)

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Virginia Boix De La Cruz; [2018]
    Nyckelord :Two-dimension materials; 2D; Graphene; hexagonal Boron Nitride; Growth; CVD; STM; XPS; Physics and Astronomy;

    Sammanfattning : Stacked heterostructures of two-dimensional (2D) materials are emerging as promising building blocks for a wide range of applications. These devices, which range from tunneling transistors to light-emitting diodes, use the properties of 2D materials that are not accessible by their bulk counterparts. LÄS MER