Self-Assembled Atmospheric Fatty Acid Aerosol Proxies: Spin-Coated Thin Film Kinetics and Phase Behaviour


We propose a simultaneous neutron reflectometry (NR)/attenuated total reflection (ATR) infra-red spectroscopy experiment on spin-coated thin films of self-assembled fatty acids on Si wavers as proxies for atmospheric aerosols. Key aims are to (i) quantify the effect of film thickness on kinetics of nitrate-radical initiated oxidation and (ii) explore the humidity response of lyotropic phases by controlling the humidity with a bespoke humidity control system. The reproducible film thickness achieved by spin coating lends itself to a thorough film thickness-kinetics study much needed in the literature. This experiment will build on our previous qualitative findings (Nat Commun, 2017) and on publications as a result of previous NR beamtime studying surfactants at the air-water interface. It is synergistically linked to a DLS application on ozonolysis of spin-coated films.

Metadata Access
Creator Dr Maxmilian Skoda; Dr Adam Milsom
Publisher ISIS Neutron and Muon Source
Publication Year 2022
Rights CC-BY Attribution 4.0 International;
OpenAccess true
Contact isisdata(at)
Resource Type Dataset
Discipline Chemistry; Natural Sciences
Temporal Coverage Begin 2019-09-27T08:37:26Z
Temporal Coverage End 2019-10-01T16:23:03Z