Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Improving the efficiency of the contact force method of the atomic force spectroscopy

Yu.V. Kuznetsova

Tver State University

DOI: 10.26456/pcascnn/2021.13.243

Short communication

Abstract: We propose a technique that optimizing the method of contact force spectroscopy. With the help of a macro language integrated into the NOVA software of the Solver P47 scanning probe microscope, an algorithm was developed that allows analyzing force curves without leaving its main interface. The approbation of the method was done on samples of synthesized polymer, since one of the most important mechanical properties determining their range of applications is elasticity. In this paper, local values of the Young’s modulus on the polymer surface are obtained by the method of contact force spectroscopy using the YUNG script developed using a macro language integrated into the control program of a scanning probe microscope. It is shown that the use of the YUNG script makes it possible to optimize the method of contact force spectroscopy by searching for the exponent γ, choosing a model for calculating the interaction force for further determination of the local Young modulus.

Keywords: atomic force microscopy, the method of contact atomic force spectroscopy, Young's modulus, elastic modulus, Hertz model

  • Yulia V. Kuznetsova – Ph. D., Docent, Condensed Matter Physics Department, Tver State University

Reference:

Kuznetsova, Yu.V. Improving the efficiency of the contact force method of the atomic force spectroscopy / Yu.V. Kuznetsova // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. – Tver: TSU, 2021. — I. 13. — P. 243-249. DOI: 10.26456/pcascnn/2021.13.243. (In Russian).

Full article (in Russian): download PDF file

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