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Ricciardella, F. (author), Vollebregt, S. (author), Polichetti, T. (author), Alfano, B. (author), Massera, E. (author), Sarro, Pasqualina M (author)
In this paper we report on gas sensors based on graphene grown by Chemical Vapor Deposition at 850 °C. Mo was used as catalyst for graphene nucleation. Resistors were directly designed on pre-patterned Mo using the transfer-free process we recently developed, thus avoiding films damage during the transfer to the target substrate. Devices...
conference paper 2017
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Velea, A. (author), Vollebregt, S. (author), Wardhana, G.K. (author), Giagka, Vasiliki (author)
This paper reports on the characterization of a microfabricated wafer-scale, graphene-based, soft implant for spinal cord applications. Graphene is used because of its high transparency and good conductivity, making it suitable for optogenetic applications. Moreover it has a high mechanical strength and is potentially biocompatible. The implant...
conference paper 2020
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Morelli, L. (author), Ricciardella, F. (author), Koole, Max (author), Persijn, Stefan (author), Vollebregt, S. (author)
A novel gas sensor based on multi-layered graphene (MLG) functionalised with gold nanoparticles (Au-NPs) is presented. We demonstrate for the first time that: (1) the signal saturates during the analyte exposure, something which does not occur in the pristine material and in graphene-based gas sensors in general; (2) the sign of the device...
conference paper 2020
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Poot, M. (author)
This thesis describes experiments that were done with a wide range of nano(electro)mechanical systems (NEMS). These devices are promising candidates to study mechanics in the quantum regime. The experiments range from AFM measurements on few-layer graphene nanodrums, electrical detection of flexural modes of suspended carbon nanotubes both at...
doctoral thesis 2009
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Heersche, H.B. (author)
As a result of progress in nanotechnology, smaller and smaller electronic circuits can be made. The stage of electrically contacting even a single molecule has now been reached. This stimulates both fundamental and applied research alike. Molecular electronics is hence a booming new field that draws a lot of attention. In this research project...
doctoral thesis 2006
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Kowalczyk, S.W. (author)
Solid-state nanopores, nanometer-size holes in a thin synthetic membrane, are a versatile tool for the detection and manipulation of charged biomolecules. This thesis describes mostly experimental work on DNA translocation through solid-state nanopores, which we study at the single-molecule level. In particular, we demonstrate length-wise ...
doctoral thesis 2011
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Van Leeuwen, R. (author)
In this thesis the physics of nanoscale mechanical resonators and oscillators is studied. We discuss two types of resonators. First, a top-down fabricated doubly clamped beam resonator with an integrated piezoelectric actuator is introduced. The second type of resonators are based on layered two-dimensional materials, such as graphene and...
doctoral thesis 2015
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Goossens, A.M. (author)
In this thesis we investigate the fundamental properties of electronic transport in bilayer graphene. We do this by confining electrons to narrow constrictions and small islands. Our key result is the fabrication and measurement of nanoscale devices that permit confinement with electric fields in bilayer graphene for the first time on a...
doctoral thesis 2013
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Zhu, S. (author)
In this thesis, I have shown that the quality of synthetic graphene can be as high as mechanically exfoliated graphene if we can get rid of the wrinkles. Any defects, impurities and grain boundaries will induce scattering, preventing ballistic transport. The experiment described in chapter 4 was the first to demonstrate ballistic transport in...
doctoral thesis 2015
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Wakker, G.M.M. (author)
This thesis consists of a theoretical exploration of quantum transport phenomena and quantum dynamics in nanostructures. Specifically, we investigate adiabatic quantum pumping of charge in several novel types of nanostructures involving open quantum dots or graphene. For a bilayer of graphene we find that at the Dirac point and for a wide...
doctoral thesis 2011
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Oostinga, J.B. (author)
After the experimental discovery of graphene -a single atomic layer of graphite- a scientific rush started to explore graphene’s electronic behaviour. Graphene is a fascinating two-dimensional electronic system, because its electrons behave as relativistic particles. Moreover, it is a promising material for future high-speed nano-electronic...
doctoral thesis 2010
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Alos Palop, M. (author)
doctoral thesis 2013
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Liu, X.L. (author)
Graphene is an exceptionally thin semiconductor that consists of only one atomic layer of carbon atoms. The electrons in graphene live in a strictly two-dimensional (2D) world. In addition to this remarkable 2Dness, it is also peculiar that the behavior of the electrons in graphene is governed by the Dirac equation rather than the well known...
doctoral thesis 2010
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Keijzers, C.J.H. (author)
doctoral thesis 2012
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Heller, I. (author)
This thesis describes the experimental study of devices based on single carbon nanotubes in the context of (bio)sensing in aqueous solutions. Carbon nanotubes are cylindrical molecules of sp2- carbon, about one nanometer in diameter and typically several micrometers long, which have semiconducting or metallic electronic properties. Nanotube...
doctoral thesis 2009
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Siskins, M. (author)
This thesis studies higher-order material properties* and effects in van der Waals crystals, such as anisotropic Young’s modulus, magnetostriction, and non-trivial thermal expansion effects near magnetic and electronic phase transitions, that can affect the nanomechanical motion ofmultilayer two-dimensional (2D) material membranes. These...
doctoral thesis 2021
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Lee, M. (author)
This thesis encompasses both applied and fundamental studies of suspended van der Waals materials. Chapters 1 and 2 give an introduction to the field of 2D materials and some of the critical methods which facilitate the study of the suspended structures. In Chapters 3 and 4 we focus on the applications of graphene in barometric pressure sensors...
doctoral thesis 2021
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Kabiri, Y. (author)
The low contrast of biomolecules in TEM has been a great obstacle for their structure determination and hence to the understanding of their structure-function relation. Historically, single DNA strands remained one the most difficult classes of biomolecular specimens to image, due to low electron scattering strength of its constituent elements....
doctoral thesis 2019
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Nanda, G. (author)
This thesis describes the capabilities of the helium ion microscope (HIM) and that of graphene to explore fundamental physics and novel applications. While graphene offers superior electronic properties, the helium ion microscope allows us to combine imaging and modification of materials at the nanoscale. We used the capabilities of HIM to grow...
doctoral thesis 2017
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Vicarelli, L. (author)
doctoral thesis 2017
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