Graphene+silicon

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Graphene ribbons to replace copper on chips?

Not content with taking on the might of silicon, now graphene in all its two-dimensional glory is giving the evil eye to copper. According to an announcement from Rensselaer Polytechnic Institute, graphene is a promising candidate to replace copper as the size of circuitry on chips shrinks ever smaller.

November 20, 2011 by

Batteries boosted with silicon-graphene layers

Researchers have found a way to make lithium ion batteries hold a charge ten times greater than they do at present, and charge ten times faster. To do this they have had to overcome some limitations of wonder-material graphene.

November 17, 2011 by

Lasers could illuminate band gap for graphene

Graphene: famous for being a Nobel Prize prompting wonder material, and for having no band gap. The lack of band gap means graphene’s future as a possible replacement for silicon has always looked bleak, because a band gap is the property that allows a transistor to be switched on and off.

June 20, 2011 by

The future of graphene

Graphene hints at a world of electronics beyond silicon, unshackled from Moore's Law. What can we expect from this wonder material over the next 10 years?

June 15, 2011 by

Transistors? Pah. IBM demos complete graphene circuit

IBM, having wowed us all in April with graphene transistors that run at 155GHz, has gone one step further and now reports success in building a high-speed, graphene-based circuit.The researchers, writing in the June 10 issue of Science, describe how they deposited multiple layers of graphene on a silicon wafer.

June 9, 2011 by

How to make graphene

Sellotape and sugar rub shoulders with high-temperature furnaces and low-pressure chambers in a rush to produce graphene, which aims to be the 21st century's successor to silicon

June 8, 2011 by

Graphene-based modulator promises ultra-fast comms

Researchers at the University of California, Berkeley, have created a graphene-based optical modulator that they think could lead to digital communications up to 10 times faster than is possible with currently-deployed technology.Graphene is a one-atom thick layer of crystallised carbon that many hope will overcome the limitations of silicon and lead to viable quantum computing.

May 11, 2011 by

IBM clocks graphene transistor at 155GHz

IBM has demonstrated a new super whizzy graphene transistor, clocking in at 155GHz, up from the 100GHz it benched last year.The breakthrough was made possible because the transistor was set on a substrate of "diamond-like carbon", itself layered on a commercial silicon wafer.

April 10, 2011 by

Fastest transistor yet boosts graphene's super-status

This week, IBM began something of a band-gap backlash against wunder material graphene. After the computer firm said graphene would never fully replace silicon, a group of scientists in Switzerland announced that there was another two dimensional industrial lubricant with more traditional semi-conductor properties – molybdenum - that could send silicon into retirement.

February 4, 2011 by

Silicon gets stay of execution from IBM

Silicon might have to share the spotlight with graphene, but it won’t be totally retired. So say researchers at IBM, who have found that their graphene transistors can’t be fully switched off.

January 25, 2011 by

Patchwork graphene points to better fabrication

Graphene, wonder material though it may be, is horribly difficult to grow in the clean, perfect sheets that electronics engineers need to build the successors to today’s silicon chips. But new research from scientists at Cornell will make it easier to see where the defects are in a sheet of graphene, leading eventually to better fabrication processes.

January 6, 2011 by

Graphene research wins Nobel Prize

Two University of Manchester, England scientists have been awarded this year's Nobel Prize in Physics for their work on graphene, widely seen as having the potential to replace silicon in electronics.

October 5, 2010 by

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