Multifrequency imaging in the intermittent contact mode of atomic force microscopy: beyond phase imaging

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Senli GuoStephen Jesse

Abstract

The cantilever dynamics in single-frequency scanning probe microscopy (SPM) are undefined due to having only two output variables, which leads to poorly understood image contrast. To address this shortcoming, generalized phase imaging scanning probe microscopy (GP-SPM), based on broad band detection and multi-eigenmode operation, is developed and demonstrated on diamond nanoparticles with different functionalization layers. It is shown that rich information on tip-surface interactions can be acquired by separating the response amplitude, instant resonance frequency, and quality factor. The obtained data allow high-resolution imaging even in the ambient environment. By tuning the strength of tip-surface interaction, different surface functionalizations can be discerned.

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Citations

Aug 3, 2016·Scientific Reports·Vighter IberiOlga S Ovchinnikova
Nov 11, 2014·Beilstein Journal of Nanotechnology·Santiago D SolaresChristian J Long
Apr 30, 2014·Beilstein Journal of Nanotechnology·Santiago D Solares
Dec 25, 2013·Beilstein Journal of Nanotechnology·Sidney R Cohen, Estelle Kalfon-Cohen
Aug 28, 2014·Beilstein Journal of Nanotechnology·Babak EslamiSantiago D Solares
Nov 6, 2014·Nanotechnology·Sangmin AnDaniel Ebeling
Dec 22, 2016·ACS Applied Materials & Interfaces·Donald McGillivrayK T Leung

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