Sideband KPFM is a new AFM technique for analysing grain boundaries, semiconductor junctions, photovoltaics materials, and even molecular structures.
Sideband Kelvin Probe Force Microscopy (KPFM) uses the intermodulation of an electrostatic drive force and a mechanical drive force to upconvert the electrostatic frequency to the first flexural resonance, where the high-quality factor of the resonance yields a more sensitive measurement. The Sideband KPFM signal is calculated using a local interaction between the tip apex and the sample rather than a total interaction between the cantilever and the sample, improving the spatial resolution over other technique variations. Join us as the technical services engineer at Park Systems covers the basics and more Sideband KPFM details, including tradeoffs and imaging suggestions for Park AFM with various advanced materials images.