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463 Current news about the topic graphene

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Properties of graphene change due to water and oxygen

06-Dec-2019

We often find that food becomes rotten when we leave it outside for long and fruits turn brown after they are peeled or cut. Such phenomena can be easily seen in our daily life and they illustrate the oxidation-reduction reaction. The fundamental principle controlling physical properties of ...

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Electron correlations in carbon nanostructures

Behaviour of electrons in graphene nanoribbons elucidated

05-Dec-2019

New materials are needed to further reduce the size of electronic components and thus make devices such as laptops and smartphones faster and more efficient. Tiny nanostructures of the novel material graphene are promising in this respect. Graphene consists of a single layer of carbon atoms and, ...

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Smog-eating graphene composite reduces atmospheric pollution

05-Dec-2019

Graphene Flagship partners the University of Bologna, Politecnico di Milano, CNR, NEST, Italcementi HeidelbergCement Group, the Israel Institute of Technology, Eindhoven University of Technology, and the University of Cambridge have developed a graphene-titania photocatalyst that degrades up to ...

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How graphene nanoparticles improve the resolution of microscopes

Small particles, big effects

22-Nov-2019

Conventional light microscopes cannot distinguish structures when they are separated by a distance smaller than, roughly, the wavelength of light. Superresolution microscopy, developed since the 1980s, lifts this limitation, using fluorescent moieties. Scientists at the Max Planck Institute for ...

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Graphene: The more you bend it, the softer it gets

21-Nov-2019

New research by engineers at the University of Illinois combines atomic-scale experimentation with computer modeling to determine how much energy it takes to bend multilayer graphene - a question that has eluded scientists since graphene was first isolated. Graphene - a single layer of carbon ...

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Laser pulses create topological state in graphene

08-Nov-2019

Discovering ways to control the topological aspects of quantum materials is an important research frontier because it can lead to desirable electrical and spin transport properties for future device technologies. Now MPSD (Max Planck Institute for the Structure and Dynamics of Matter) scientists ...

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How do you know it's perfect graphene?

The answer has been there all along

04-Nov-2019

Producing structurally perfect graphene and other 2D materials is the secret to tapping into their potential novel electronic and spintronic properties. But how do we know when graphene, the most widely studied 2D material, is perfect-- a defect-free and uniform layer of atoms? Scientists at the ...

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Atomic images reveal unusually many neighbors for some oxygen atoms

22-Oct-2019

The identification of new chemical bonds is crucial for the design of new material structures. A team led by Jani Kotakoski at the University of Vienna and Jannik Meyer at the University of Tübingen has found unexpected new configurations of oxygen and nitrogen in graphene. Direct images of the ...

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Graphene is on track to deliver on its promises

08-Oct-2019

Graphene is light, flexible, conductive, and one of the strongest materials in the world. And it is right on track to deliver on its promises - the Graphene Flagship is confident many applications will be unveiled in the next decade. In a special Nature Nanotechnology issue, celebrating 15 years ...

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Graphene is 3D as well as 2D

26-Sep-2019

Graphene is actually a 3D material as well as a 2D material, according to a new study from Queen Mary University of London. Realising that it is a 3D material is important for understanding its mechanical properties and for developing novel graphene-based devices. Often hailed as a 'wonder ...

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