Search for dissertations about: "Guy Le Lay"

Found 2 swedish dissertations containing the words Guy Le Lay.

  2. 1. 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

  4. 2. Phthalocyanines on Surfaces : Monolayers, Films and Alkali Modified Structures

    Author : Katharina Nilson; Carla Puglia; Joachim Schiessling; Emmanuelle Göthelid; Nils Mårtensson; Guy Le Lay; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; Phthalocyanines; Surface Science; X-ray Photoelectron Spectroscopy XPS ; X-ray Absorption Spectroscopy XAS ; Scanning Tunneling Microscopy STM ; Density Functional Theory DFT ; Metal-free Phthalocyanine; Iron Phthalocyanine; Zinc Phthalocyanine; Gold; Graphite; Aluminium; Indium Antimony; Molecular adsorption; Monolayer; Film; Alkali; Geometrical structure; Electronic structure; Doping; Atom- och molekylfysik; Physics; Fysik;

    Abstract : The Phthalocyanines (Pc’s) are a group of macro-cyclic molecules, widely investigated due to the possibility to use them in a variety of applications. Electronic and geometrical structure investigations of molecular model systems of Pc’s adsorbed on surfaces are important for a deeper understanding of the functionality of different Pc-based devices. READ MORE