Graphene Film Keeps Electronic Devices Cool

Posted: Jul 13 2015, 2:04am CDT | by , in News | Technology News


Graphene Film Keeps Electronic Devices Cool
  • Graphene Film Being Employed as Coolant for Electronic Equipment

A graphene film is being employed with great success as a coolant for electronic equipment.

Researchers have found a methodology of efficaciously cooling electronica via a graphene-based film. The special material has a conductivity that is many times that of copper which is a pretty good conductor of electricity. It can be linked up with silicon.

The problem with electronic contraptions is that they can heat up to the point where they start to malfunction and buckle under. To amend this issue, which comes between a piece of technology and its functions, getting rid of extra heat is of the essence. Thus electronic longevity could become a fact of everyday existence. 

Almost half the power used to operate electronic equipment is wasted in cooling the gizmos and gadgets. This is a very bad state of affairs. Mankind can do much more thanks to the wonders of science.

When it was proved several years ago by a research team led by Johan Liu, professor at Chalmers University of Technology that graphene can have a cooling effect on silicon-based technology, the prospects for the computerized society of ours looked brighter all of a sudden.

“But the methods that have been in place so far have presented the researchers with problems”, Johan Liu said in a statement.

“It has become evident that those methods cannot be used to rid electronic devices off great amounts of heat, because they have consisted only of a few layers of thermal conductive atoms. When you try to add more layers of graphene, another problem arises, a problem with adhesiveness. After having increased the amount of layers, the graphene no longer will adhere to the surface, since the adhesion is held together only by weak van der Waals bonds."

“We have now solved this problem by managing to create strong covalent bonds between the graphene film and the surface, which is an electronic component made of silicon,” he continues.

However, the various means to the ends had baffled scientists. The heat transfer required for cooling is not sufficient seeing the thin layer of atoms of graphene that were utilized in the procedure.  

And there were problems of adhesion too that have to be solved before the real deal came in full view. However, recently this glitch was overcome by creating strong covalent bonds in between the graphene film and the silicon.

A layer of molecules titled APTES (which is an acronym which stands for 3-Aminopropyl triethoxysilane) appears to do the job pretty well. Four times the capacity of copper was reached via this system of hooking up various special materials.

“Increased thermal capacity could lead to several new applications for graphene,” said Johan Liu. "One example is the integration of graphene-based film into microelectronic devices and systems, such as highly efficient Light Emitting Diodes (LEDs), lasers and radio frequency components for cooling purposes. Graphene-based film could also pave the way for faster, smaller, more energy efficient, sustainable high power electronics."

The graphene-based film can be modified to apply to Light Emitting Diodes, Lasers and Radionics Equipment which is a boon and a blessing. The miracles of supertechnology and nanotechnology never fail to surprise and shock mankind with their highly powerful life-transforming effects.

Graphene is indeed the wave of the future since the very fast and fantastic electronics that will reign at that time will depend on its presence for better or for worse. The possibilities are indeed infinite and the doom-mongers of today are the biggest pessimists on the planet since there is actually no reason whatsoever to be despondent or gloomy about the science of futurism. The way lies open and the only thing stopping us is our own mind which actually has no limits in reality. 

This research paper has been published in Advanced Functional Materials.

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<a href="/latest_stories/all/all/20" rel="author">Sumayah Aamir</a>
Sumayah Aamir (Google+) has deep experience in analyzing the latest trends.




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