25 search results for “graphene” in the Public website
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Graphene as biological sensor
How distance-dependent is graphene as biological sensor?
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Graphene at fluidic interfaces
In this thesis unconventional tools based on fluidic interfaces were developed to study the surface and interfacial chemistry of graphene, to characterize the intrinsic properties of graphene, to disentangle the effects of substrate and of the environmental factors, and to improve handling protocols…
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Grégory Schneider
Wiskunde en Natuurwetenschappen
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Superstructures of lipids and graphene
This thesis systematically analyzes the physical-chemistry of lipid-graphene interactions with the major objective of reconciliating the variety of results reported in the literature.
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Lattice models for Josephson junctions and graphene superlattices
In this thesis we study quantum transport phenomena on the nanometer scale, in two classes of materials: topological insulators with induced superconductivity and graphene superlattices.
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Liubov Belyaeva
Wiskunde en Natuurwetenschappen
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and superlubricity on the macroscopic scale: from nanostructure to graphene and graphite lubrication
The thesis describes experimental steps towards reduction of friction on the macroscopic scale by scenarios of thermo- and superlubricity well-known on the nanoscale.
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Applications of graphene in nanotechnology : 1D diffusion, current drag and nanoelectrodes
Graphene nanoribbons (GNRs) are used as a current carrying substrate in investigation of current-induced forces in a low-temperature STM (chapter 2).
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Unconventional fabrication of 2D nanostructures and graphene edges
In this work, we illustrate unconventional approaches towards the fabrication of edge functionalized graphene nanostructures and bidimensional architectures in polymeric and metallic supports, with an outlook towards molecular sensing devices.
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The origins of friction and the growth of graphene, investigated at the atomic scale
Promotor: J.W.M. Frenken
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Search for mechanisms to control massless electrons in graphene
Beenakker
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New insights on graphene
Graphene floating on water does not repel water, as many researchers believe, but rather attracts it. This has been demonstrated by chemists Liubov Belyaeva and Pauline van Deursen and their supervisor Grégory F. Schneider. Publication in Advanced Materials.
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Graphene supercurrents go ballistic
Scientists at TU Delft and Leiden University have observed supercurrents in graphene that bounce back and forth between the edges of the graphene without scattering along the way.
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Atoms use tunnels to escape graphene cover
Graphene has held a great promise for applications since it was first isolated in 2004. But we still don’t use it in our large-scale technology, because we have no way of producing graphene on an industrial scale. Leiden physicists have now visualized for the first time how atoms behave in between graphene…
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Travelling through the body with graphene
For the first time researchers have succeeded in placing a layer of graphene on top of a stable fatty lipid monolayer. Surrounded by a protective shell of lipids, graphene could enter the body and function as a versatile sensor. The results are the first step towards such a shell, and have been published
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Making flawless graphene coatings
Graphene, the ultra-thin wonder material just a single carbon atom in thickness, holds the promise of such impressive applications as wear-resistant, friction-free coatings. But first manufacturers have to be able to produce large sheets of graphene under precisely controlled conditions. Dirk van Baarle
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Two graphene layers lean in for a kiss
Leiden physicists and chemists have managed to bring two graphene layers so close together that an electric current spontaneously jumps across. In the future this could enable scientists to study the edges of graphene and use them for sequencing DNA with a precision beyond existing technologies. Publication…
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European roadmap for graphene applications in science and technology
More than 60 European researchers and industry partners have set out their roadmap for the application of graphene in marketed products. Leiden chemist Grégory F. Schneider believes that graphene and other layered materials can in the future be used for DNA sequencing applications.
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eV-TEM: Transmission Electron Microscopy with few-eV Electrons
Electron microscopy has become an extremely important techniquein a wide variety of elds.
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Reading through proteins with graphene: NWO Vidi grant awarded to Dr. Grégory Schneider
While there are numerous and extremely advanced methods to sequence the genome, only a few methods exist to sequence the proteome. The Vidi project of Grégory Schneider promises to shed light on the most difficult paradigm of proteomics: achieving an error-free determination of the sequence of single
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Graphene is a thoroughbred that has to be tamed
Electrons in graphene behave like light particles; they have no mass and can penetrate everything: very useful if you dream about nano-electronics. But you do have to channel them. Carlo Beenakker will be researching how. He has been awarded an ERC Advanced Grant of 1.5 million euro to carry out this
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Copper trispyrazolylborate complexes for ethene detection
Promotor: E. Bouwman Co-Promotor: S. Bonnet
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Theoretical Physics
In the spirit of 'unity in diversity', our objective is to promote insight into and appreciation for the wonder that the same physical laws and mathematical concepts apply to the whole of nature, from the largest to the smallest energy and length scales. We strive for the application of abstract theoretical
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Interactions in Designer Materials Unveiled
Graphene and other layered materials combine into completely new substances. Leiden physicists establish the ground rules for designing such materials by measuring how the layers in the stack interact. Publication on November 29 in Nature Communications.
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Electrons found to flow like water
Science Magazine has published three back-to-back papers on an important discovery in solid state physics. Leiden physicist Jan Zaanen wrote a Perspective article on the subject in the same issue of 4 March.