Self-Assembly of Flat Organic Molecules on Metal Surfaces
Title | Self-Assembly of Flat Organic Molecules on Metal Surfaces PDF eBook |
Author | Manuela Mura |
Publisher | Springer Science & Business Media |
Pages | 181 |
Release | 2012-06-30 |
Genre | Science |
ISBN | 3642303250 |
Manuela Mura's thesis is devoted to ab initio studies of self-assembled organic molecules on a gold surface. This area of research is particularly vibrant because of the various applications such studies have in nanoscience and surface chemistry and physics. In this thesis Manuela Mura uses theory to suggest atomistic models for the observed assembled and she proposes an assembly mechanism. The methods and results developed as part of this work will be of wide interest to physicists and chemists working on the assemblies of organic molecules on crystal surfaces.
Molecular Self-assembly of Organic Molecules on Coinage Metal Surfaces
Title | Molecular Self-assembly of Organic Molecules on Coinage Metal Surfaces PDF eBook |
Author | |
Publisher | |
Pages | 248 |
Release | 2021 |
Genre | |
ISBN |
Atomic Scale Observations of Large Organic Molecules at Metal Surfaces
Title | Atomic Scale Observations of Large Organic Molecules at Metal Surfaces PDF eBook |
Author | Jens Weckesser |
Publisher | |
Pages | 134 |
Release | 2000 |
Genre | |
ISBN |
Self-assembly Patterning of Organic Molecules on a Surface
Title | Self-assembly Patterning of Organic Molecules on a Surface PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2017 |
Genre | |
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The embodiments disclosed herein include all-electron control over a chemical attachment and the subsequent self-assembly of an organic molecule into a well-ordered three-dimensional monolayer on a metal surface. The ordering or assembly of the organic molecule may be through electron excitation. Hot-electron and hot-hole excitation enables tethering of the organic molecule to a metal substrate, such as an alkyne group to a gold surface. All-electron reactions may allow a direct control over the size and shape of the self-assembly, defect structures and the reverse process of molecular disassembly from single molecular level to mesoscopic scale.
Theoretical Characterization of Scanning Tunneling Microscopy Images of Assemblies of Flat Organic Molecules on Metal Surfaces
Title | Theoretical Characterization of Scanning Tunneling Microscopy Images of Assemblies of Flat Organic Molecules on Metal Surfaces PDF eBook |
Author | Manuela Mura (Physicist) |
Publisher | |
Pages | 366 |
Release | 2010 |
Genre | Supramolecular chemistry |
ISBN |
The work in this thesis is focused on molecules that are able to self-assemble on different surfaces by forming two-dimensional templates stabilised via double or triple hydrogen bonding. In particular, assemblies of molecules such as melamine, perylene tetra-carboxylic di-imide (PTCDI), perylene tetra-carboxylic di-anhydride (PTCDA), naphthalene tetracarboxylic-dianhydride (NTCDA) and naphthalene tetracarboxylic diimide (NTCDI) are studied in detail. The aim is to give a complete characterisation of the supramolecular networks, taking into account the balance between the molecule-molecule and molecule-substrate interactions. All our assembly calculations are done within the gas phase approximation, i.e. without taking into account the surface, which is a good approximation assuming that the molecules are quite mobile on the surface. Using a systematic method based on considering all possible hydrogen bond connections between the molecules we investigate planar superstructures that organic molecules can form in one and two dimensions. The structures studied are based on two or more molecules per unit cell and all structures considered, assemble in fiat periodic patterns. Most of the calculations are performed using the density functional theory method. We show that the calculated lattice parameters of the structures considered compare well with those measured experimentally. To specifically check the applicability of the gas-phase approximation, we systematically investigated the adsorption of the molecules on the Au (111) metal surface with the particular attention being paid to the characterisation of the potential energy surface of our molecules on this surface. We performed these calculations using both a conventional functional (PBE) which does not include the dispersion interaction, and the newly developed vdW-DF method which does.
Materials Nanoarchitectonics
Title | Materials Nanoarchitectonics PDF eBook |
Author | Katsuhiko Ariga |
Publisher | Elsevier |
Pages | 648 |
Release | 2023-12-07 |
Genre | Technology & Engineering |
ISBN | 0323994733 |
Materials Nanoarchitectonics: From Integrated Molecular Systems to Advanced Devices provides the latest information on the design and molecular manipulation of self-organized hierarchically structured systems using tailor-made nanoscale materials as structural and functional units. The book is organized into three main sections that focus on molecular design of building blocks and hybrid materials, formation of nanostructures, and applications and devices. Bringing together emerging materials, synthetic aspects, nanostructure strategies, and applications, the book aims to support further progress, by offering different perspectives and a strong interdisciplinary approach to this rapidly growing area of innovation. This is an extremely valuable resource for researchers, advanced students, and scientists in industry, with an interest in nanoarchitectonics, nanostructures, and nanomaterials, or across the areas of nanotechnology, chemistry, surface science, polymer science, electrical engineering, physics, chemical engineering, and materials science. - Offers a nanoarchitectonic perspective on emerging fields, such as metal-organic frameworks, porous polymer materials, or biomimetic nanostructures - Discusses different approaches to utilizing "soft chemistry" as a source for hierarchically organized materials - Offers an interdisciplinary approach to the design and construction of integrated chemical nano systems - Discusses novel approaches towards the creation of complex multiscale architectures
Modelling the Behaviour and Self-assembly Processes of Organic Molecules on Metallic Surfaces
Title | Modelling the Behaviour and Self-assembly Processes of Organic Molecules on Metallic Surfaces PDF eBook |
Author | Giulia Tomba |
Publisher | |
Pages | 274 |
Release | 2008 |
Genre | Metals |
ISBN |