Tag "graphene" archive

Breakthrough in the field of graphene devices

graphene growing on germanium

Samsung appears to have stumbled across the holy grail of commercial graphene production: A new technique that can grow high-quality single-crystal graphene on silicon wafers — graphene that is suitable for the production of graphene field-effect transistors (GFETs) Continue reading “Breakthrough in the field of graphene devices” »

Graphene “Bubbles” and High Efficiency Electronics

graphene bubbles

A team of researchers has discovered that graphene can be stretched to create tiny nanobubbles in which electrons generate the same energy levels that otherwise would require an extremely strong magnetic field. The discovery provides a clue to the manipulation of electrons in graphene, which in turn could lead to a new generation of ultra-small, ultra-efficient electronic devices. Continue reading “Graphene “Bubbles” and High Efficiency Electronics” »

IBM is developing 10,000 times faster graphene chip

ibm research gfet construction ikon1

IBM builds graphene chip that’s 10,000 times faster, using standard CMOS processes. Engineers at IBM Research have built the world’s most advanced graphene-based chip, with performance that’s 10,000 times better than previous graphene ICs. The key to the breakthrough is a new manufacturing technique that allows the graphene to be deposited on the chip without it being damaged (something that has heretofore been very hard to achieve).
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Graphene “Sandwich” Protects Microscopic Materials from Radiation

Graphene Controls Radiation Damage

By placing microscopic materials between two sheets of graphene, researchers have discovered a new technique that protects microscopic materials from the harmful effects of radiation when under the microscope. This technique could soon be the key to enabling the direct study of every single individual atom in a protein chain.

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New Possibilities for Graphene in Thin-Film Photovoltaics

Graphene for Solar Cells

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In a newly published study, researchers from the HZB Institute for Silicon Photovoltaics have shown that graphene retains its properties when coated with a thin silicon film, paving the way for new possibilities in solar cells.

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Graphene Oxide Polymer Offers New Posibilities for Optical Recording

Graphene Oxide Super Discs

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By focusing an ultrashort laser beam onto a graphene oxide polymer, researchers have developed a new material for multimode optical recording.
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Scientists use DNA to shape graphene into the transistor of the future

graphene 2

Increasingly, quantum computers are predicted to be the next great leap in computational power — but in reality they are more likely to be the next next great leap. Right now we have to tailor experimental quantum chips to their particular mathematical process of interest, literally build them to solve a specific problem; today’s silicon solutions will reach the peak of their potential long before we can go buy Intel or AMD’s new plug-and-play quantum processor.
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Graphene Speeds Telecommunication

Graphene Faster

Research from the Universities of Bath and Exeter suggests that the use of graphene in telecommunications could improve speeds by nearly a hundred times that of current materials.

In a paper published in Physical Review Letters, researchers from the Center for Graphene Science at the Universities of Bath and Exeter have demonstrated for the first time incredibly short optical response rates using graphene, which could pave the way for a revolution in telecommunications. Continue reading “Graphene Speeds Telecommunication” »

Metal–oxide–semiconductor field-effect transistor with a vacuum channel

Electrons emitted from the interface of oxide and silicon

With physical barriers limiting further increases in semiconductor electronic efficiency, scientists at the University of Pittsburgh redesigned the structure of the vacuum electronic device, allowing electrons to travel ballistically in a nanometer-scale channel without any collisions or scattering.
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Graphene Provides Cooling for Electronics

producing semiconductors from graphene

A new discovery shows that graphene provides efficient electronics cooling, reducing the working temperature in hotspots inside a processor by up to 25 percent.

An international group of researchers, headed by Chalmers University of Technology in Sweden, are the first in the world to show that graphene has a heat dissipating effect on silicon based electronics. Continue reading “Graphene Provides Cooling for Electronics” »