Rutgers University researchers have found graphene is twice as good at active cooling as other materials, and is ideal for use in transistors, reports a study published in Proceedings of the National Academy of Sciences. The team placed a one-atom-thick layer of graphene, which is 100 times stronger than steel and quickly diffuses heat, on a substrate made of boron nitride. That's when an electrical current carries heat away, as shown in this study, while passive cooling is when heat diffuses naturally. Graphene has been used to make transistors since 2007, but it was only recently that scientists realized its potential as an insulator. Another advantage is that no moving parts are needed.
Rutgers University researchers have found graphene is twice as good at active cooling as other materials, and is ideal for use in transistors, reports a study published in Proceedings of the National Academy of Sciences. The team placed a one-atom-thick layer of graphene, which is 100 times stronger than steel and quickly diffuses heat, on a substrate made of boron nitride. Graphene has been used to make transistors since 2007, but it was only recently that scientists realized its potential as an insulator. Another advantage is that no moving parts are needed.