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.
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 ...
Infrared Nanotube Films Offer Advantages for Solar Cells and More
Mar 11, 2009 |
4.5 / 5 (11) |
0
(PhysOrg.com) -- Researchers have already known that carbon nanotube thin films have mechanical and conductive advantages that could make them useful as electrodes in solar cells, solid state lighting, and ...
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.
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.
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.
Scientists discover ground-breaking material: Graphane
Nanotechnology / Nanomaterials
Jan 30, 2009 |
4.7 / 5 (47) |
13
(PhysOrg.com) -- Researchers at The University of Manchester have produced a ground-breaking new material, graphane, which has been derived from graphene.
'Most extreme' material: Graphene could be successor to silicon for next generation microchips; 200 times stronger than
Nanotechnology / Nanomaterials
May 05, 2009 |
4.6 / 5 (21) |
1
(PhysOrg.com) -- In a blown-up image from a scanning tunneling microscope, it looks just like an endless sheet of chicken wire: a simple flat sheet made up of a lattice of hexagons. But this nanoscopic material ...
Scientists Produce First Movie of Individual Carbon Atoms in Action (w/Videos)
Mar 31, 2009 |
4.8 / 5 (29) |
8
(PhysOrg.com) -- Science fiction fans still have another two months of waiting for the new Star Trek movie, but fans of actual science can feast their eyes now on the first movie ever of carbon atoms moving ...
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.
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 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, ...
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.
Graphene could lead to faster chips
Mar 19, 2009 |
4.9 / 5 (10) |
1
(PhysOrg.com) -- New research findings at MIT could lead to microchips that operate at much higher speeds than is possible with today's standard silicon chips, leading to cell phones and other communications ...
