Lecture

Self-organized growth at surfaces

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Description

This lecture covers bottom-up methods in nanoscience, focusing on instrumentation like AFM and STM, destructive exposure, manipulation with SIM, nanostructures, conductivity of a molecular wire, STM-induced chemical reactions, molecular beam epitaxy, thin film growth, self-organized growth at surfaces, surface tensions, Stranski-Krastanov growth of semiconductor QDs, hydrogen bonding, solution-based nanocrystal synthesis, possible applications of copper nanocrystals, nanostructure fabrication, self-assembly, supramolecular chemistry, hydrogen-bonded networks, molecular design, and self-assembly of S-layers. The lecture explores the control of structures through temperature, symmetry, and surface chemistry, as well as the self-assembly of S-layers at the solid-liquid interface.

Official source

Ontological neighbourhood

Chemical engineering

Nanotechnology: Topics in nanotechnology

Related concepts (32)

Self-assembly

Self-assembly is a process in which a disordered system of pre-existing components forms an organized structure or pattern as a consequence of specific, local interactions among the components themselves, without external direction. When the constitutive components are molecules, the process is termed molecular self-assembly. Self-assembly can be classified as either static or dynamic. In static self-assembly, the ordered state forms as a system approaches equilibrium, reducing its free energy.

Molecular self-assembly

In chemistry and materials science, molecular self-assembly is the process by which molecules adopt a defined arrangement without guidance or management from an outside source. There are two types of self-assembly: intermolecular and intramolecular. Commonly, the term molecular self-assembly refers to the former, while the latter is more commonly called folding. Molecular self-assembly is a key concept in supramolecular chemistry. This is because assembly of molecules in such systems is directed through non-covalent interactions (e.

Nanotechnology

Nanotechnology, often shortened to nanotech, is the use of matter on atomic, molecular, and supramolecular scales for industrial purposes. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative, which defined nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers (nm).

Molecular machine

Molecular machines are a class of molecules typically described as an assembly of a discrete number of molecular components intended to produce mechanical movements in response to specific stimuli, mimicking macromolecular devices such as switches and motors. Naturally occurring or biological molecular machines are responsible for vital living processes such as DNA replication and ATP synthesis. Kinesins and ribosomes are examples of molecular machines, and they often take the form of multi-protein complexes.

Self-assembly of nanoparticles

Nanoparticles are classified as having at least one of three dimensions be in the range of 1-100 nm. The small size of nanoparticles allows them to have unique characteristics which may not be possible on the macro-scale. Self-assembly is the spontaneous organization of smaller subunits to form larger, well-organized patterns. For nanoparticles, this spontaneous assembly is a consequence of interactions between the particles aimed at achieving a thermodynamic equilibrium and reducing the system’s free energy.

Related lectures (64)

Nanoworld Exploration: STM & AFM Basics

Explores self-assembly, lithography, and STM & AFM imaging of the nanoworld.

Self-assembly of Microsystems

Explores self-assembly of Microsystems, its importance, features, motivations, and examples in various fields, highlighting landmark achievements and future prospects.

Supramolecular Chemistry: Basics and Molecular Interactions

Covers the basics of supramolecular chemistry, including self-assembly processes and molecular interactions such as hydrogen bonding and cation-π interactions.

DNA Nanotechnology: Origami and Nanophotonics

Explores DNA origami nanotools for nanophotonics, focusing on light control at the nanoscale and the challenges in technological breakthroughs.

Nanotechnology: Fabrication and Imaging