Search for dissertations about: "Au 111"

Showing result 16 - 20 of 33 swedish dissertations containing the words Au 111.

  2. 16. Synchrotron-based In Situ Electron Spectroscopy Applied to Oxide Formation and Catalysis

    Author : Niclas Johansson; Synkrotronljusfysik; []
    Keywords : CO oxidation; Sonogashira cross-coupling; trilayer FeO; vicinal FeO; Mn III -salen; APXPS; XAS; Fysicumarkivet A:2017:Johansson;

    Abstract : In this thesis, in situ ambient pressure X-ray photoelectron spectroscopy has been used to address chemical reactions on surfaces. The presented work aims at the investigation of the relation between pressure and adsorbate surface structures during catalytic reactions. READ MORE

  4. 17. Structure-dependent charge transfer at the interafce between organic thin films, and metals and metal oxides

    Author : Sareh Ahmadi; Oscar Tjernberg; Guy Le Lay; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; photoelectric spectroscopy; X-ray absorption spectroscopy; organic semiconductors; phthalocyanine; charge transfer; electronic structure; dye sensitization;

    Abstract : The purpose of the research work, presented in this thesis is to offer a detailed atomic level study of interfaces created by adsorption of organic molecules on metals and metal oxides to point out significant impact of substrate, dye structure as well as different mediators on the charge transfer at these interfaces, which is proven to influence the device performance to a great extent.Adsorption of organic photosensitive molecules on metals and metal-oxides is the main focus of this thesis. READ MORE

  5. 18. Magnetism and Structure of Thin 3d Transition Metal Films : XMCD and EXAFS using Polarized Soft X-Rays

    Author : Anders Hahlin; Dimitri Arvanitis; Olof Karis; Claus Schneider; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; thin film; xmcd; exafs; anisotropy; coherence; circular polarization; magnetism; Fe; Co; Ag; Fysik; Physics; Fysik; Fysik; Physics;

    Abstract : In this Thesis the magnetic and structural properties of thin epitaxial Fe, Co, and Ni films are discussed. Some of the in-situ prepared samples were used to characterize the degree of circular polarization of the newly installed beamline D1011 at MAX-lab. READ MORE

  6. 19. Ab initio Interlayer Potentials For Metals and Alloys

    Author : Fuyang Tian; Levente Vitos; Nanxian Chen; Docent Kalevi Kokko; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mobius inversion; Potentials; EMTO; Järnvägsgruppen - Effektiva tågsystem för godstrafik; Järnvägsgruppen - Effektiva tågsystem för godstrafik; Järnvägsgruppen - Effektiva tågsystem för persontrafik; Järnvägsgruppen - Effektiva tågsystem för persontrafik;

    Abstract : Many modern materials and material systems are layered. The properties related to layers are connected to interactions between atomic layers. In the present thesis, we introduce the interlayer potential (ILP), a novel model potential which fully describes the interaction between layers. READ MORE

  7. 20. Electronic and atomic structure of metal induced reconstructionson Si(lll) and Ge(lll) surfaces studied by PES and STM

    Author : Hanmin M. Zhang; Hanno H. Weitering; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Deposition of metal atoms on semiconductors leads in many cases to reconstructed surfaces. The lack of symmetry in the direction normal to the surface allows for a large variety in the atomic arrangements of the surface reconstructions. In the case of silicon, more than 300 kinds of adsorbate-induced surface reconstructions have been found. READ MORE