Browsing Fakultät für Chemie (inkl. GAUSS) by Advisor "Wodtke, Alec Prof. Dr."
Now showing items 1-15 of 15
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Dynamics of Hydrogen Atoms Scattering from Surfaces
(2017-01-06)Hydrogen atoms interactions with single crystal surfaces are the simplest processes in surface science, which are of both practical and fundamental interest. Chemical reactions of hydrogen atoms with single crystal surfaces ... -
Electron Emission from Metastable Carbon Monoxide Molecules at Adsorbate Covered Au(111) Surfaces
(2015-07-09)Understanding the fundamentals of energy transfer between molecules and surfaces is of profound importance in modern chemistry. Here, I investigate an important energy transfer process, electron ... -
From diatomic to polyatomic quantum-state-resolved molecule-surface scattering
(2017-10-10)In this work, molecule-surface scattering is studied for the diatomic molecule nitric oxide (NO) and the polyatomic molecule formaldehyde. Following the approach of “molecular surface science”, elementary steps in the ... -
Generation of H-Atom Pulses and Associative Desorption of Hydrogen Isotopologues from Metal Surfaces
(2018-03-28)Part I of this work introduces a technique for the generation of H-atom pulses with unprecedented time resolution. In part II an extensive study of the associative desorption reaction of hydrogen isotopologues from metal ... -
Implementing Ion Imaging to Probe Chemical Kinetics and Dynamics at Surfaces
(2018-07-03)In this thesis I present a novel surface science apparatus and new methods to measure and analyze reaction kinetics at surfaces. By combining crossed-beam surface scattering with universal fs-laser ionization and ion ... -
Inelastic H-Atom scattering from ultra-thin films
(2018-09-05)This thesis contains experimental and theoretical fundamental studies of energy transfer processes on various surfaces via inelastic hydrogen atom scattering using the Rydberg atom tagging machine. The initial investigations ... -
MD simulations of atomic hydrogen scattering from zero band-gap materials
(2019-07-26)This work deals with simulations of atomic hydrogen beam scattering from various surfaces. The studied surfaces are several (post-)transition metals, an insulator and graphene. Simulations were run with a self-written ... -
Molecular Beam Scattering from Ultrathin Metallic Films
(2017-07-28)One of the goals of studying molecule-surface interactions is to understand the details of the chemical reactivity at surfaces. The exchange of energy between a gas and a solid is a complex sequence of events even when ... -
Molecular Beam Studies of Energy Transfer in Molecule Surface Interactions
(2011-12-08)Chemical reactivity at metal surfaces is extremely important in modern chemistry. Motivation for a deeper understanding of these processes has led to the development of new fields of study, ... -
Orientation-dependent energy transfer in gas-surface collisions: Scattering of vibrationally excited nitric oxide from Au(111)
(2015-07-14)The work in my thesis is a contribution to the field of chemical dynamics at surfaces. In this field we seek to develop a detailed microscopic understanding of chemical events taking place on surfaces. Progress in ...
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Quantum-state specific scattering of molecules from surfaces
(2014-10-15)In my work, I investigated the quantum-state resolved scattering of three different diatomic molecules (NO, CO, N2) from different surfaces, including Au(111) and Pt(111). I focused on measurements of the energy ... -
Scattering of vibrationally excited NO from vanadium dioxide
(2020-01-24)This work investigates the surface dynamics of vanadium dioxide with nitric oxide in dependence of its metal-to-insulator transition (MIT) at 68 °C. At lower temperatures VO2 has a monoclinic lattice structure which has ... -
Soft Landing of Size Selected Nanoparticles Produced by Magnetron Sputtering
(2012-11-28)In the first part, the photodissociation dynamics of methyl azide are probed by photofragment translational spectroscopy at 248 nm and 193 nm dissociation wavelengths under collision-free conditions. At 248 nm, the only ... -
The Dynamics of Highly Vibrationally Excited CO Scattered from Metal Surfaces
(2019-04-26)Supersonic molecular beams of highly vibrationally excited CO are scattered from atomically clean Au(111) and Ag(111) surfaces. Specifically, incident CO is prepared in the (v = 17, J = 0) state of the electronic ground ... -
Theoretical Description of Hydrogen Atom Scattering off Noble Metals
(2016-07-01)I have constructed a full-dimensional potential energy surface (PES) for a H atom interacting with a Au(111) surface by fitting the analytic form of the Effective Medium Theory to density functional theory (DFT) energies. ...