Design of a Setup for Modal Testing of Micro-Cantilevers Immersed in Liquid

To facilitate research on the dynamics of micro-cantilevers immersed in liquid, a modal test setup was designed. Modal testing is a powerful form of dynamic testing whereby the system's natural frequencies, modal masses, modal damping ratios, mode shapes, and weight of each of these modes at a certain frequency are determined. Micro-cantilever...

Tip identification in atomic force microscopy using nonlinear dynamics

Since its invention, the Atomic Force Microscope has emerged into one of the most useful tools in<br/>nanotechnology due to its acclaimed abilities in exploring surface topography, micro- and nanoscale manipulation<br/>and characterization. The nonlinear interaction between the cantilever tip and the sample surface<br/>has been studied in great...

Extracting elastic properties of graphene nanodrums using a multi-modal approach in Molecular Dynamics

The field of nanotechnology has been quickly growing over the last few decades and many different functional Nano Electro Mechanical Systems(NEMS) can now be made. <br/>To further increase the possibilities and functionality of NEMS, new materials have to be characterized. Of the new materials which become available at the nanoscale, graphene is...

Non-enzymatic electrochemical sensing of glucose with nano-structured and functionalised diamond electrodes

Electrochemical sensing is a powerful tool for the rapid detection of (bio)molecules in fluids, and is frequently used in clinical analysis and diagnostics. Diamond is arguably the best electrode material for its robustness, wide potential window, very low background current, biocompatibility and self-cleaning features. <br/>Nowadays, there is a...

Optimized MEMS-based Nanoreactor for In-Situ Transmission Electron Microscopy Studies at High Temperature and Atmospheric Pressure

Transmission electron microscopy is a powerful and commonly used tool to study nanoparticles, nanowires and 2D materials. It provides static information from the sample with atomic resolution, in high vacuum and at ambient temperature. However, in real processes, the environment is often different and dynamic.<br/><br/> MEMS-based sample...

Damage detection in semiconductor devices by non-linear elastic wave spectroscopy

Semiconductor devices can be found everywhere in our daily lives, for example in self-driving cars, bank cards and personal devices such as smart phones or notebooks. Once part of these personal devices, one does not want them to show failure. Although reliability of such devices is taken into account in the design, the fabrication process might...

Graphene deposition on MEMS devices

MEMS devices are currently designed to avoid sliding and contacting parts due to friction and adhesion problems. In this work, the possibility to grow a low friction material locally on MEMS sidewalls is investigated. An overview of the lubricants proposed in the literature for the microscale is presented, and graphene is selected as a promising...