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New graphene promises high heat transfer

A new graphene material capable of conducting heat 20 times faster than silicon is being heralded as the future of cooling for laptops and tablets.

According to Innovation News, the experimental graphene made by US and Chinese researchers has also proved to be 60 per cent more effective at transferring heat than typical graphene — a carbon sheet just one atom thick.

Such a material could eventually become a part of computer chips alongside silicon, as well as transferring heat from solar panels, for instance.

“The performance of an electronic device degrades as it heats up, and if it continues, the device fails,” said Kyeongjae Cho, associate professor of materials science and engineering and physics at the University of Texas at Dallas.

“The faster heat is removed, the more efficient the device runs and the longer it lasts.”

Efficient heat removal would also allow for smaller and more powerful electronic devices.

The specially engineered graphene was heated with a laser beam to test its heat transfer abilities at the University of Texas
in Austin.

“This demonstration brings graphene a step closer to being used as a conductor for managing heat in a variety of devices,” said Rodney Ruoff, a physical chemist at the University of Texas.

“The potential of this material, and its promise for the electronic industry, is very exciting.”

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