Graphene used to cool electronic devices by up to 25%

Researchers from Chalmers University of Technology in Sweden have demonstrated how graphene can dissipate heat in silicon based electronics. The researchers placed a graphene sheet on an electronic device hot-spots – which reduced the working temperature reduction by 25%.

All electronic devices generate heat. The devices (processors, for example) include those hot-spots where the work is most intensive. These spots are small (on a micro or nano scale). In their experiment, the hotspots had a normal temperature of 55 to 115 degrees Celsius. The graphene layer reduced it by up to 13 degrees.

Back in 2011, it was discovered that graphene transistors have a nanoscale cooling effect that reduces their temperature. Graphene actually lowers the temperature of a transistor if it is attached to it. In April 2013 Grafoid signed a joint-venture development agreement with CapTherm Systems to develop and commercialize graphene-based multiphase thermal management systems.

Source: Nanowerk