170926_SolventSpreading_Langmuir.pdf (654.95 kB)
Understanding solvent spreading for Langmuir deposition of nanomaterial films: a Hansen solubility parameter approach
journal contribution
posted on 2023-06-09, 09:25 authored by Matthew LargeMatthew Large, Sean OgilvieSean Ogilvie, Alice KingAlice King, Alan DaltonAlan DaltonIn order to prepare high-quality Langmuir films of two-dimensional materials it is important to select a solvent optimized for both exfoliation and spreading at the air-water interface. Whilst it is generally accepted that exfoliation and stabilisation of two-dimensional materials is well-described using the Hansen solubility parameter theory, a complementary description of solvent spreading behaviour is lacking. To this end we develop an understanding of solvent spreading using a Hansen solubility parameter framework. Our model accurately predicts the behaviour of both water-immiscible and water-miscible solvents in Langmuir film formation experiments. We demonstrate that spreading behaviour can be modified by controlling the surface pressure of the subphase using an amphiphilic species and accordingly utilise this approach to determine the maximum spreading pressure for a selection of solvents. Ultimately, by building on this understanding we open up additional routes to optimize the preparation of Langmuir films of two-dimensional materials and other nanoparticles.
History
Publication status
- Published
File Version
- Accepted version
Journal
LangmuirISSN
0743-7463Publisher
American Chemical SocietyExternal DOI
Issue
51Volume
33Page range
14766-14771Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Materials Physics Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-12-18First Open Access (FOA) Date
2018-12-04First Compliant Deposit (FCD) Date
2017-12-16Usage metrics
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