Note: Switching crosstalk on and off in Kelvin probe force microscopy

Note: switching crosstalk on and off in Kelvin Probe Force Microscopy.

In Kelvin Probe Force Microscopy (KPFM) electronic crosstalk can occur between the excitation signal and probe deflection signal. Here, we demonstrate how a small modification to our commercial instrument enables us to literally switch the crosstalk on and off. We study in detail the effect of crosstalk on open-loop KPFM and compare with closed-loop KPFM. We measure the pure crosstalk signal an...

Kelvin probe force microscopy in liquid using electrochemical force microscopy

Conventional closed loop-Kelvin probe force microscopy (KPFM) has emerged as a powerful technique for probing electric and transport phenomena at the solid-gas interface. The extension of KPFM capabilities to probe electrostatic and electrochemical phenomena at the solid-liquid interface is of interest for a broad range of applications from energy storage to biological systems. However, the ope...

Practical aspects of Kelvin probe force microscopy

We discuss practical aspects of Kelvin probe force microscopy ~KFM! which are important to obtain stable images of the electric surface potential distribution at high spatial resolution ~,100 nm! and high potential sensitivity ~,1 mV! on conducting and nonconducting samples. We compare metal-coated and semiconducting tips with respect to their suitability for KFM. Components of the metal coatin...

The resistive switching in TiO2 films studied by conductive atomic force microscopy and Kelvin probe force microscopy

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The effect of sample resistivity on Kelvin probe force microscopy