Home > News > Can graphene overtake silicon as the essential ingredient of computer chips?
September 29th, 2007
Can graphene overtake silicon as the essential ingredient of computer chips?
"Graphene has always been before our eyes, but no one ever tried to look," says Andre Geim, a physicist at the University of Manchester in England. A single-atom-thick, chicken wire web of carbon atoms, graphene forms the layers that stack up to make the graphite found in pencil lead and carbon soot.
Though promising, nanotubes have proved devilishly difficult to assemble into circuits. Nanotubes don't readily connect to one another, and attaching them to metal contacts creates spots where electrons tend to scatter, dissipating energy as heat.
Graphene, on the other hand, comes in sheets. It may be possible to etch graphene circuits, just as circuits are now etched into silicon wafers. Forming circuits from one sheet of graphene could be much easier than assembling them from nanotube pieces. "We want to be able to use the essential properties of carbon nanotubes in a material that can be patterned easily," says Walt de Heer of the Georgia Institute of Technology in Atlanta. "It could realize the dream people had of carbon-nanotube electronics."
Nanometrics Announces Upcoming Investor Events November 19th, 2014
A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014
Researchers create & control spin waves, lifting prospects for enhanced info processing November 17th, 2014
VDMA Electronics Production Equipment: Growth track for 2014 and 2015 confirmed: Business climate survey shows robust industry sector November 14th, 2014
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers
NMTI announces breakthrough solutions for HAMR nanoantenna for next-generation ultra-high density magnetic storage November 21st, 2014
Quantum mechanical calculations reveal the hidden states of enzyme active sites November 20th, 2014
UO-industry collaboration points to improved nanomaterials: University of Oregon microscope puts spotlight on the surface structure of quantum dots for designing new solar devices November 20th, 2014
Silver Nanoparticles Produced in Iran from Forest Plants Extract November 20th, 2014