Searched for: faculty:"Applied%5C%2BSciences"
(1 - 20 of 32)

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Didden, A.P. (author)
Reducing particle size or material structure size to nanometer scale can make the material properties, such as light absorption and electronic structure, change compared to the same materials at normal scale. This gives them properties that can make them suitable for the development of highly efficient and improved micro-electronics, sensor...
doctoral thesis 2016
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Frisenda, R. (author)
In this dissertation, charge-transport through individual organic molecules is investigated. The single molecules are contacted with two-terminal mechanically controllable break junction gold electrodes and their electrical and mechanical behavior studied at room and low temperature.
doctoral thesis 2016
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Wu, F. (author)
One of the most basic features that pervade biology is the existence of boundaries that separate living cells from their outer environments. Molecules responsible for the internal organization of a living cell must adapt to its boundaries, as the cell grows, divides, and changes in shape and size. In this thesis, we aim to understand how...
doctoral thesis 2015
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Evers, W.H. (author), Schins, J.M. (author), Aerts, M. (author), Kulkarni, A. (author), Capiod, P. (author), Berthe, M. (author), Grandidier, B. (author), Delerue, C. (author), van der Zant, H.S.J. (author), van Overbeek, C. (author), Peterse, J.L. (author), Vanmaekelbergh, D. (author), Siebbeles, L.D.A. (author)
Two-dimensional networks of quantum dots connected by atomic bonds have an electronic structure that is distinct from that of arrays of quantum dots coupled by ligand molecules. We prepared atomically coherent two-dimensional percolative networks of PbSe quantum dots connected via atomic bonds. Here, we show that photoexcitation leads to...
journal article 2015
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Standing, A. (author), Assali, S. (author), Gao, L. (author), Verheijen, M.A. (author), Van Dam, D. (author), Cui, Y. (author), Notten, P.H.L. (author), Haverkort, J.E.M. (author), Bakkers, E.P.A.M. (author)
Photoelectrochemical hydrogen production from solar energy and water offers a clean and sustainable fuel option for the future. Planar III/V material systems have shown the highest efficiencies, but are expensive. By moving to the nanowire regime the demand on material quantity is reduced, and new materials can be uncovered, such as wurtzite...
journal article 2015
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Aerts, M. (author), Bielewicz, T. (author), Klinke, C. (author), Grozema, F.C. (author), Houtepen, A.J. (author), Schins, J.M. (author), Siebbeles, L.D.A. (author)
Semiconductor nanocrystals are promising for use in cheap and highly efficient solar cells. A high efficiency can be achieved by carrier multiplication (CM), which yields multiple electron-hole pairs for a single absorbed photon. Lead chalcogenide nanocrystals are of specific interest, since their band gap can be tuned to be optimal to exploit...
journal article 2014
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Kalantzi, O.I. (author), Biskos, G. (author)
The increasing penetration of materials and products containing engineered nanoparticles (ENPs) to the market is posing many concerns regarding their environmental impacts. To assess these impacts, there is an urgent need of techniques for determining the health-related properties of ENPs and standards for assessing their toxicity. Although a...
journal article 2014
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Suchand Sandeep, C.S. (author), Ten Cate, S. (author), Schins, J.M. (author), Savenije, T.J. (author), Liu, Y. (author), Law, M. (author), Kinge, S. (author), Houtepen, A.J. (author), Siebbeles, L.D.A. (author)
Carrier multiplication, the generation of multiple electron–hole pairs by a single photon, is of great interest for solar cells as it may enhance their photocurrent. This process has been shown to occur efficiently in colloidal quantum dots, however, harvesting of the generated multiple charges has proved difficult. Here we show that by tuning...
journal article 2013
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Riste, D. (author), Bultink, C.C. (author), Tiggelman, M.J. (author), Schouten, R.N. (author), Lehnert, K.W. (author), DiCarlo, L. (author)
The tunnelling of quasiparticles across Josephson junctions in superconducting quantum circuits is an intrinsic decoherence mechanism for qubit degrees of freedom. Understanding the limits imposed by quasiparticle tunnelling on qubit relaxation and dephasing is of theoretical and experimental interest, particularly as improved understanding of...
journal article 2013
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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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Hennart, S.L.A. (author)
This thesis describes how the activity of a preservative product used in food coatings can be optimized. This project is partly sponsored by the European Marie Curie Framework projects as part of the BioPowders research training network. DSM Food Specialties hosts and co finances this project. The research project focuses on food coating such as...
doctoral thesis 2011
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Forn-Díaz, P. (author), Schouten, R.N. (author), Den Braver, W.A. (author), Mooij, J.E. (author), Harmans, C.J.P.M. (author)
We fabricated and tested a squelch circuit consisting of a copper powder filter with an embedded Josephson junction connected to ground. For small signals (squelch ON), the small junction inductance attenuates strongly from dc to at least 1 GHz, while for higher frequencies dissipation in the copper powder increases the attenuation exponentially...
journal article 2009
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Chen, P. (author), Salemink, H.W.M. (author), Alkemade, P.F.A. (author)
Ion-beam-induced deposition (IBID) is a powerful technique for prototyping three-dimensional nanostructures. To study its capability for this purpose, the authors investigate the proximity effect in IBID of nanopillars. In particular, the changes in shape and dimension of pillars are studied when a second pillar is grown near an existing pillar....
journal article 2009
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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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Botman, A. (author), Hesselberth, M. (author), Mulders, J.J.L. (author)
Focused electron-beam-induced deposition (EBID) allows the rapid fabrication of three-dimensional nanodevices and metallic wiring of nanostructures, and is a promising technique for many applications in nanoresearch. The authors present two topics on platinum-containing nanostructures created by EBID. First, they report on a TEM study of the...
journal article 2008
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Ishii, M. (author), Hamilton, B. (author), Poolton, N. (author)
We have observed the distribution of electron trapping centers on distorted carbon nanotubes (CNTs) by a unique x-ray analysis technique that has both elemental and spatial selectivities. This technique involves the use of scanning probe microscopy (SPM) under synchrotron radiation excitation of the inner shell of carbon. The probe detects the...
journal article 2008
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Van Dorp, W.F. (author), Hagen, C.W. (author)
An extensive review is given of the results from literature on electron beam induced deposition. Electron beam induced deposition is a complex process, where many and often mutually dependent factors are involved. The process has been studied by many over many years in many different experimental setups, so it is not surprising that there is a...
journal article 2008
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Christova, C.G. (author), Stouwdam, J.W. (author), Eijkemans, T.J. (author), Silov, A.Y. (author), Van der Heijden, R.W. (author), Kemerink, M. (author), Janssen, R.A.J. (author), Salemink, H.W.M. (author)
Remarkable photoluminescence enhancement (PLE) in submonolayer films of PbSe nanocrystals (NCs) upon continuous illumination was observed. The intensity increase from films on InP substrates was highest in vacuum, while for films on Si/SiO2 substrates the PLE was stronger in air. The magnitude of the PLE was found to depend on the excitation...
journal article 2008
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Witkamp, B. (author), Poot, M. (author), Pathangi, H. (author), Hüttel, A.K. (author), Van der Zant, H.S.J. (author)
We have fabricated suspended metal paddle resonators with carbon nanotubes functioning as self-detecting torsional springs. We observe gate-tunable resonances that either tune to higher or to lower frequencies when increasing the dc voltage on the back gate. We attribute the former modes to flexural vibrations of the paddle resonator, while the...
journal article 2008
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Van den Heuvel, M.G.L. (author)
This thesis describes experimental work at the interface of nanotechnology and biology. We combine fabrication techniques from nanotechnology with motor proteins from the biological cell. Motor proteins are fascinating protein complexes with nanometer dimensions that are involved in force generation and motion inside cells. One intriguing...
doctoral thesis 2007
Searched for: faculty:"Applied%5C%2BSciences"
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