Researchers at the Max Planck Institute for Polymer Research, University of Cambridge, Institute for Basic Science (IBS), Korea University and Durham University have uncovered how graphene can appear “wetting transparent” at large scales while still reshaping water structure at the nanoscale.
Graphene on a substrate and in contact with water underpins technologies from desalination and energy storage to sensing, electrocatalysis, and neuromorphic devices, yet its wettability has remained controversial. Suspended graphene on water is intrinsically hydrophobic, but when graphene is supported on oxides or ionic crystals, macroscopic contact‑angle measurements show that the apparent wettability is largely dictated by the underlying substrate – an effect known as wetting transparency. The new work asks the question: do substrate electric fields simply pass through graphene, or does graphene’s pronounced polarizability first reshape those fields and thereby mediate how water is organized at the interface?
Researchers at the Max Planck Institute for Polymer Research, University of Cambridge, Institute for Basic Science (IBS), Korea University and Durham University have uncovered how graphene can appear “wetting transparent” at large scales while still reshaping water structure at the nanoscale.
Graphene on a substrate and in contact with water underpins technologies from desalination and energy storage to sensing, electrocatalysis, and neuromorphic devices, yet its wettability has remained controversial. Suspended graphene on water is intrinsically hydrophobic, but when graphene is supported on oxides or ionic crystals, macroscopic contact‑angle measurements show that the apparent wettability is largely dictated by the underlying substrate – an effect known as wetting transparency. The new work asks the question: do substrate electric fields simply pass through graphene, or does graphene’s pronounced polarizability first reshape those fields and thereby mediate how water is organized at the interface?
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