Solvation forces near a graphite surface measured with an atomic force microscope

Abstract

Solvation force interactions in a liquid near a solid wall (graphite) were investigated using an atomic force microscope. The general features of the data show the distinctive oscillatory force curve associated with solvation forces, with a mean periodicity approximately equal to the minimum dimensions of the molecules. Moreover, the graphite surface can still be imaged with atomic resolution; which suggests that the technique can be used for the detailed study of short range forces over specific parts of various surfaces.