Scientists found that graphene conducts heat about 20 times faster than silicon, which is used in most modern technology as a semiconductor material. The finding by UT Dallas engineers could lead to more-efficient cooling of electronics, producing quieter and longer-lasting computers, and cellphones and other devices. “Heat is generated every time a device computes,” said Dr. Kyeongjae ‘KJ’ Cho, associate professor of materials science and engineering and physics at UT Dallas and one of the study’s authors.