Novel developments and applications of bimodal atomic force microscopy and 3D-AFM
Title (trans.)
Nuevos Desarrollos y Aplicaciones de Microscopía de Fuerza Atómica bimodal y 3D-AFMAuthor
Benaglia, SimoneAdvisor
García García, Ricardo
Entity
UAM. Departamento de Física de la Materia CondensadaDate
2021-07-26Subjects
Microscopía de Fuerza Atómica; FísicaNote
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Física de la Materia Condensada. Fecha de lectura: 26-07-2021Esta tesis tiene embargado el acceso al texto completo hasta el 26-01-2023

Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
Understanding surface and interfacial properties of materials is fundamental to employ
them for novel applications. The Atomic Force Microscope is one of the most versatile
tools for that purpose. It can be applied in vacuum, air or liquid solution, for the study of
materials of very different nature, and with the purpose of unraveling intrinsic properties
other than resolving morphological features with sub-nm resolution. All together, these
are characteristics that make the AFM unique.
Among the different AFM techniques developed so far, dynamic modes stand out for
their flexibility. Dynamic AFM methods consist in a oscillatory excitation of the AFM
cantilever. The two main dynamic AFM techniques are called Amplitude Modulation
(AM) and Frequency Modulation (FM), which differ for the mechanism exerted by the
electronic controllers. Their use has reached a widespread popularity in academia and
industry. Recently, novel advanced dynamic AFM techniques have been developed with
three general purposes: (i) higher sensitivity, (ii) faster acquisition time, (iii) ability
to analyze material properties not accessible before. In this thesis, bimodal AFM and
3D-AFM are the advanced dynamic methods of interest. Bimodal AFM is a multifrequency
AFM technique based on the simultaneous excitation of two eigeinmodes of the
AFM cantilever. It can be applied to unravel different types of material properties, e.g.
mechanical and magnetic characteristics. For that purpose, proper force models have to
be combined with a theoretical description of the cantilever movement, and corroborate
through simulations and experiments. 3D-AFM is a novel AFM technique which allows
to map with high resolution a three-dimensional volume. It has been applied to study
forces happening at solid-liquid interfaces, and it has unraveled how liquid molecules
arrange at the surface of a variety of materials.
This thesis comprises six chapters with two main focuses, being the first the further
development and improvement of bimodal AFM and 3D-AFM, and the second to show
their feasibility to be applied for the study of nanoscale phenomena otherwise difficult to
probe with other techniques. The details of the chapters are briefly listed in the following
Files in this item
Google Scholar:Benaglia, Simone
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.