Studies of liquid films and surface
We have developed a new technique, which we call Scanning Polarization Force Microscopy (SPFM), that is capable of imaging liquid surfaces and films with nanometer resolution. With it, we have imaged for the first time the condensation and evaporation of monolayers of water on mica in equilibrium with the humid environment. We are applying the new technique to studies of other systems. These include: nanometer scale droplets and their interaction with surfaces, wetting of hydrophilic and hydrophobic surfaces, and acid surfaces. A vast number of new phenomena are being discovered by application of the technique to new systems. Some of the recent ones include: formation of two-dimensional liquids (one or a few molecules thick) and their interaction with surfaces and monoatomic steps, siphoning of two-dimensional water films, etc.
Postdoc: Peng Jiang
Visiting Professor: Kenta Arima
Former Researcher: Albert Verdaguer