News tagged with graphene
Researchers find new properties of the carbon material graphene
Graphene has caused a lot of excitement among scientists since the extremely strong and thin carbon material was discovered in 2004. Just one atom thick, the honeycomb-shaped material has several remarkable ...
Nanotechnology / Nanomaterials
May 30, 2012 |
4.9 / 5 (20) |
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Scientists take steps toward creating artificial graphene
(Phys.org) -- Researchers first observed graphene in 2004 by extracting the single-atom-thick sheets of carbon from bulk graphite. While graphene’s electrical and optical properties have proven to have ...
Nanotechnology / Nanomaterials
May 29, 2012 |
4.5 / 5 (8) |
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Graphene on boron nitride work may lead to breakthrough in microchip technology
(Phys.org) -- Graphene is the wonder material that could solve the problem of making ever faster computers and smaller mobile devices when current silicon microchip technology hits an inevitable wall. Graphene, ...
May 28, 2012 |
4.6 / 5 (10) |
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Dopant gives graphene solar cells highest efficiency yet
(Phys.org) -- By taking advantage of graphene’s favorable electrical and optical properties, and then adding an organic dopant, researchers have achieved the highest power conversion efficiency yet for ...
May 21, 2012 |
4.8 / 5 (11) |
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Using graphene, scientists develop a less toxic way to rust-proof steel
(Phys.org) -- University at Buffalo researchers are making significant progress on rust-proofing steel using a graphene-based composite that could serve as a nontoxic alternative to coatings that contain hexavalent ...
Nanotechnology / Nanomaterials
May 18, 2012 |
4.5 / 5 (6) |
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Samsung presents a new graphene device structure
Samsung Advanced Institute of Technology, the core R&D incubator for Samsung Electronics, has developed a new transistor structure utilizing graphene.
Nanotechnology / Nanomaterials
May 18, 2012 |
5 / 5 (10) |
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Diamond used to produce graphene quantum dots and nano-ribbons of controlled structure
Kansas State University researchers have come closer to solving an old challenge of producing graphene quantum dots of controlled shape and size at large densities, which could revolutionize electronics and optoelectronics.
May 17, 2012 |
5 / 5 (4) |
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Electron hopping in graphene oxide leads to highly sensitive sensing
(Phys.org) -- Graphene has many promising applications on its own, but pairing the two-dimensional material with the semiconductor titanium dioxide (TiO2) extends its capabilities even further. A team of ...
Nanotechnology / Nanomaterials
May 17, 2012 |
5 / 5 (4) |
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Electronic congestion in the microchips of the future
(Phys.org) -- Electrons within some materials can stick together like cars on a traffic jam. Swiss researchers studying promising materials for the future of electronics have been able to highlight this phenomenon
May 16, 2012 |
5 / 5 (3) |
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Research group creates highly sensitive photodetector from graphene and quantum dots
(Phys.org) -- Researchers in Spain have succeeded in building a photodetector that is a billion times more sensitive than other such detectors based on graphene and could herald the use of graphene based light ...
May 15, 2012 |
4.4 / 5 (7) |
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New research could mean faster computers and better mobile phones
Graphene and carbon nanotubes could improve the electronics used in computers and mobile phones, reveals new research from the University of Gothenburg, Sweden.
Nanotechnology / Nanomaterials
May 14, 2012 |
3 / 5 (2) |
1
A new paper made of graphene and protein fibrils
(Phys.org) -- Researchers led by Raffaele Mezzenga, a professor in Food and Soft Materials Science, have created a new nanocomposite made of graphene and protein fibrils: a special paper, which combines the ...
Nanotechnology / Nanomaterials
May 07, 2012 |
4.8 / 5 (8) |
1
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Graphene-based terahertz devices: The wave of the future
People use electromagnetic energy every day … watching television, listening to the radio, popping corn with a microwave, taking an X-ray or using a cellphone. This energy travels in the form of waves, ...
Nanotechnology / Nanomaterials
May 02, 2012 |
4.7 / 5 (13) |
8
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Nano-factory promises great things for graphene science
Forty times stronger than steel and conducting electricity ten times better than silicon, graphene is the wonder material that could one day replace silicon in microchips. Now the University is opening a new ...
Nanotechnology / Nanomaterials
May 02, 2012 |
4.6 / 5 (7) |
1
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GraphExeter: New graphene-based material could revolutionise electronics industry
(Phys.org) -- The most transparent, lightweight and flexible material ever for conducting electricity has been invented by a team from the University of Exeter.
Nanotechnology / Nanomaterials
Apr 27, 2012 |
4.6 / 5 (11) |
12
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Graphene
Graphene is a one-atom-thick planar sheet of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice. It can be viewed as an atomic-scale chicken wire made of carbon atoms and their bonds. The name comes from GRAPHITE + -ENE; graphite itself consists of many graphene sheets stacked together.
The carbon-carbon bond length in graphene is approximately 0.142 nm. Graphene is the basic structural element of some carbon allotropes including graphite, carbon nanotubes and fullerenes. It can also be considered as an infinitely large aromatic molecule, the limiting case of the family of flat polycyclic aromatic hydrocarbons called graphenes.
Measurements have shown that graphene has a breaking strength 200 times greater than steel, making it the strongest material ever tested.
For more information about Graphene, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
