Graphene
hideGraphene 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.
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News tagged with graphene
Scientists synthesize graphene-like material: Polymer with honeycomb structure
Nanotechnology / Nanomaterials
Nov 19, 2009 |
4.4 / 5 (12) |
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Two-dimensional carbon layers, so-called graphenes, are regarded as a possible substitute for silicon in the semiconductor industry. The electronic properties of these layers can be varied by "building in" ...
Researchers invent new method for graphene growth
Nanotechnology / Nanomaterials
Nov 10, 2009 |
4.9 / 5 (22) |
0
(PhysOrg.com) -- A Cornell research team has invented a simple way to make graphene electrical devices by growing the graphene directly onto a silicon wafer.
Physicist wins Packard Fellowship
Oct 16, 2009 |
2.3 / 5 (3) |
0
(PhysOrg.com) -- MIT physicist Pablo Jarillo-Herrero has won a 2009 David and Lucile Packard Fellowship, an award he will use to study a new class of materials that could have applications in the semiconductor ...
Graphene: Unravelling the secrets of a magic material
Nanotechnology / Nanomaterials
Oct 15, 2009 |
4.8 / 5 (12) |
8
UCL researchers are helping to unlock the secrets of a material that could ultimately be used in a new generation of electronic devices.
Physicists discover novel electronic properties in two-dimensional carbon structure
Oct 14, 2009 |
4.8 / 5 (11) |
1
Rutgers researchers have discovered novel electronic properties in two-dimensional sheets of carbon atoms called graphene that could one day be the heart of speedy and powerful electronic devices.
How Perfect Can Graphene Be?
Nanotechnology / Nanomaterials
Oct 13, 2009 |
4.6 / 5 (30) |
5
(PhysOrg.com) -- Physicists have investigated the purest graphene to date, and have found that the material possesses unprecedented high electronic quality. The discovery has raised the bar for this relatively ...
Graphene Used As Floating-Molecular Carpet To Ornament It With 24-Carat Gold 'Snowflakes'
Nanotechnology / Nanomaterials
Oct 12, 2009 |
4.2 / 5 (6) |
0
(PhysOrg.com) -- In an effort to make graphene more useful in electronics applications, Kansas State University engineers made a golden discovery -- gold "snowflakes" on graphene.
Stretching opens up possibilities for graphene
Nanotechnology / Nanomaterials
Sep 28, 2009 |
4.9 / 5 (13) |
1
(PhysOrg.com) -- Researchers say they have found a simple way to improve the semiconducting properties of the world’s thinnest material - by giving it a good tug.
Graphene and gallium arsenide: Two perfect partners find each other
Sep 16, 2009 |
2 / 5 (2) |
1
It is the marriage of two top candidates for the electronics of the future, both excentric and extremely interesting: Graphene, one of the partners, is an extremely thin fellow and besides, very young.
Carbon nanotubes could make efficient solar cells
Nanotechnology / Nanomaterials
Sep 10, 2009 |
5 / 5 (21) |
13
(PhysOrg.com) -- Cornell researchers fabricated, tested and measured a simple solar cell called a photodiode, formed from an individual carbon nanotube.
Ice Gets Bent Out of Shape
Sep 09, 2009 |
4.3 / 5 (4) |
0
For the first time, scientists have built completely flat, two-layer ice. While theoreticians have predicted that such ices are formed by squeezing water molecules between two surfaces, scientists at Pacific ...
From graphene to graphane, now the possibilities are endless
Nanotechnology / Nanomaterials
Jul 31, 2009 |
5 / 5 (30) |
10
Ever since graphene was discovered in 2004, this one-atom thick, super strong, carbon-based electrical conductor has been billed as a "wonder material" that some physicists think could one day replace silicon ...
Graphene Shows High Current Capacity and Thermal Conductivity
Nanotechnology / Nanomaterials
Jul 29, 2009 |
4.9 / 5 (13) |
1
(PhysOrg.com) -- Recent research into the properties of graphene nanoribbons provides two new reasons for using the material as interconnects in future computer chips. In widths as narrow as 16 nanometers, ...
Scientists manipulate ripples in graphene, enabling strain-based graphene electronics (w/ Video)
Nanotechnology / Nanomaterials
Jul 26, 2009 |
4.8 / 5 (13) |
1
(PhysOrg.com) -- Graphene is nature's thinnest elastic material and displays exceptional mechanical and electronic properties. Its one-atom thickness, planar geometry, high current-carrying capacity and thermal ...
Graphene -- the copy beats the original
Jul 17, 2009 |
4.9 / 5 (25) |
9
(PhysOrg.com) -- The first artificial graphene has been created at the NEST laboratory of the Italian Institute for the Physics of Matter (INFM-CNR) in Pisa. It is sculpted on the surface of a gallium-arsenide ...
