Molecular Self-Assembly 1200-2BLOK5W1
Methods of monolayer assembly. Properties of Langmuir monolayers at the air-water interface. Monolayer forming molecules. Choice of solvent and subphase. Monolayer formation, structure and interactions: surface pressure and surface potential isotherms, Brewster angle microscopy (BAM) imaging, dipole moment measurement. Modification of substrates by Langmuir-Blodgett and Langmuir-Schaefer techniques: monolayer and layer-by-layer deposition procedures. Choice and preparation of substrates. Stability of films on substrates: Intermolecular interactions and interactions of molecules with substrates. Kinetics of monolayer formation.. Self-assembly of organothiolated molecules. Probing structure and dynamics of self-assembled monolayers by spectroscopy and microscopy methods, contact angle measurements, ellipsometry. Electrochemical and electrooptical properties: conductivity, capacitance, photoconductivity, electrochromic properties. Electron and mass transport through monolayers. Electron tunneling - superexchange and hoping mechanism. Applications of organized layers. Monolayer and bilayer molecular junctions. Monolayer protected clusters (MPCs): preparation and unique properties. Thin films for molecular electronic devices, modeling of biological membranes, catalytic and electrocatalytic surfaces, molecular recognition and analyte sensing
Main fields of studies for MISMaP
Type of course
Mode
Course coordinators
Learning outcomes
After completion of the course the student:
- understands the principles of molecular self-assembly in solution and on surfaces
- understands the interactions leading to self-assembly of supramolecular systems e.g. host-guest complexes or molecular motors
-is able to describe methods of organizing molecular layers at interfaces: solid substrate-solution and solution-air (Langmuir-Blodgett monolayers)
- knows selected methods of synthesis and characterization of monolayer protected metal nanoparticles (MPCs)
- can describe barrier properties of self-assembled long-chain thiol monolayers and methods of evaluating the efficiency of charge and mass transport across thin molecular films
- can give examples of supramolecular systems application in nanotechnology, medicine, microelectronics
Assessment criteria
Final exam with a mark
Practical placement
Does not concern
Bibliography
1.D. Mobius and R. Miller, Organized Monolayers and Assemblies: Structure,Processes and Function, Elsevier 2002.
2.Willner, E. Katz, Bioelectronics I. Wiley-VCH, 2005
3.B.L.Feringa Wiley, Molecular Switches, Weinheim-VCH, 2001
Additional information
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