Probing the Liquid-Solid Interface with Dynamic Force Microscopy

Probing charge screening dynamics and electrochemical processes at the solid-liquid interface with electrochemical force microscopy.

The presence of mobile ions complicates the implementation of voltage-modulated scanning probe microscopy techniques such as Kelvin probe force microscopy (KPFM). Overcoming this technical hurdle, however, provides a unique opportunity to probe ion dynamics and electrochemical processes in liquid environments and the possibility to unravel the underlying mechanisms behind important processes at...

A study of interaction forces at the solid-liquid interface using Atomic Force Microscopy

Dynamic electrostatic force microscopy in liquid media

We present the implementation of dynamic electrostatic force microscopy in liquid media. This implementation enables the quantitative imaging of local dielectric properties of materials in electrolyte solutions with nanoscale spatial resolution. Local imaging capabilities are obtained by probing the frequency-dependent and ionic concentration-dependent electrostatic forces at high frequency (>1...

Scanning electrochemical microscopy: beyond the solid/liquid interface

Recent progress has seen scanning electrochemical microscopy (SECM) emerge as a powerful technique for probing physicochemical interfacial processes, beyond the solid/liquid and electrode/electrolyte interfaces that were originally of primary interest. This review (with 92 references) assesses recent developments in SECM as a methodology for investigating liquid/liquid and liquid/gas interfaces...

Probing Hydrophilic Interface of Solid/Liquid-Water by Nanoultrasonics

Despite the numerous devoted studies, water at solid interfaces remains puzzling. An ongoing debate concerns the nature of interfacial water at a hydrophilic surface, whether it is more solid-like, ice-like, or liquid-like. To answer this question, a complete picture of the distribution of the water molecule structure and molecular interactions has to be obtained in a non-invasive way and on an...