Searched for: subject:"Graphene"
(1 - 20 of 23)

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Smid, Justin (author)
Nanomechanical resonators made from graphene are widely researched for their potential applications due to their high sensitivity. Their atomic scale thickness makes it that these resonators exhibit amplitude-dependent damping at relatively small driving forces. To further increase the performance of these devices, it is essential to understand...
master thesis 2019
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Dijkink, Laura (author)
The outstanding mechanical properties of graphene have made it a suitable candidate for awide range of sensor and actuator applications in modern technology. However, before the full potential of future applications can be achieved, a proper characterisation of the fundamental properties of graphene is crucial. The aim of this project was to...
master thesis 2019
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Wardhana, Gan (author)
Neural interface in the form of microelectrodes is used to monitor and treat spinal cord injury and other neurological disorders by the means of recording and stimulation. Despite the apparent result of these electrical interventions, understanding of the mechanism behind neural stimulation is still inadequate. The use of optical monitoring...
master thesis 2019
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Rosłoń, Irek (author)
Gas permeation through graphene membranes has received considerable
attention for water purification and molecular sieving applications. However,
characterization of the permeation has been limited to long timescales
of minutes. This thesis shows a method for measuring gas permeation
through porous graphene membranes at the...
master thesis 2018
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Romijn, Joost (author)
In this research work, efforts have been made to successfully integrate graphene in a standard CMOS fabrication process without the need for wafer-to-wafer transferring. For this purpose, a graphene-based Pirani sensor is integrated in the BICMOS process. Two batches of graphene-based Pirani sensors are characterized, resulting in world’s first...
master thesis 2018
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Singh, Manvika (author)
As we are moving towards nano level devices, there is a greater need to miniaturize resonators. Miniaturization of resonators helps to attain higher sensitivity, lower power consumption, higher resonance frequency along with lesser requirement of space. Since graphene is strong and stiff and has various other exceptional mechanical properties,...
master thesis 2017
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Shi, Shengtai (author)
This thesis study investigates the effects of differently prepared oxide substrates on gas sensing behaviors of graphene gas sensor. Explanations for why such effects happen are also revealed through experimental works. The thesis consists of a detailed study of gas sensing behaviors from graphene gas sensors using different oxide substrates....
master thesis 2017
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van Hemert, Simon (author)
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.
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...
master thesis 2017
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Chandrashekar, Abhilash (author)
Ever since its inception, graphene has been the subject of research in many parts of the
world. This is due to its exceptional mechanical and electrical properties, which makes it
ideal for NanoElectroMechanical (NEMS) devices. The inherent nature of NEMS devices,
includes low damping, large amplitudes of oscillation, resonant...
master thesis 2017
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Rietveld, Joyce (author)
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...
master thesis 2017
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Estrada, M.A. (author)
Strain engineering has been shown to alter the electronic properties of graphene, thereby changing its chemical reactivity. If this change in reactivity can be used to improve the adsorption of species on its surface, the exceptional properties of graphene can improve current sensing capabilities. The graphene surface could be functionalised...
master thesis 2016
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ter Hoeven, R.S. (author)
The Kernel Polynomial Method (KPM) is a method to approximate any function as a polynomial of finite order. In this research the KPM will be used to approximate the density of states and expectation values of physical observables in a tight binding system. To be able to use the KPM a tight binding Hamiltonian is obtained by using the python...
bachelor thesis 2016
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Van Omme, J.T. (author)
Strain engineering of graphene has been predicted to change its chemical reactivity, thereby forming the basis for new applications, like hydrogen storage. Extreme strains of more than 10% are required for these applica- tions. However, experimental verification of theoretical predictions is still greatly lacking. Such high strains could simply...
master thesis 2016
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Van Thiel, T.C. (author)
Combining DNA origami with solid-state nanopores has been gaining an increasing amount of attention due to its potential for biosensing applications. Accordingly, origami plate dockings onto conventional solid-state silicon nitride pores with membranes of ?20nm thick were previously studied. Here, we examine whether graphene, with its single...
bachelor thesis 2015
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Slim, J.J. (author)
A setup was built to measure the local frequency response of (graphene) microdrums in order to image mode shapes. To this end, a laser interferometer that measures the local deflection of a microdrum was equipped with a very precisely movable sample stage. The setup was used to image the mode shapes of a single few layer graphene microdrum,...
bachelor thesis 2015
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Liu, X. (author)
master thesis 2014
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Dolleman, R.J. (author)
Since the introduction of the iPhone and Wii gaming console in 2007 the market for mobile sensor applications has exploded. A continuous effort is made to make these sensors smaller, better and cheaper. This allowed for new applications that caused the market to grow exponentially in recent years. Pressure sensors have recently found...
master thesis 2014
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Arutchelvan, G. (author)
CMOS scaling over the years has brought great improvements in the computational speed, density and cost of microprocessors. However, scaling is approaching its limits owing to the difficulty in reducing the supply voltage with conventional MOSFETs having at best a subthreshold swing of 60mv/decade. A possible alternative is Tunnel FETs (TFETs)...
master thesis 2014
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Atar, O.G. (author)
Not available because of confidentiality
master thesis 2013
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Willems, L.M. (author)
Not available because of confidentiallity
master thesis 2013
Searched for: subject:"Graphene"
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