Oct. 2 (UPI) — Scientists have developed a new graphene-based circuit capable of producing clean, limitless power. Researchers suggest the energy-harvesting circuit — described Friday in the journal Physical Review E — could be used to power small, low-voltage devices and sensors.
The circuit’s ability confirms the theory — developed by the study’s authors, a group of physicists at the University of Arkansas — that micron-sized sheets of freestanding graphene naturally move in a way conducive to energy harvesting.
The breakthrough also contradicts the assertion by Richard Feynman that so-called Brownian motion, the thermal motion of atoms, cannot perform work. But lab tests showed the Brownian motion of atoms in freestanding sheets of graphene can generate an alternating current.
Famously, physicist Léon Brillouin proved that a single diode, a one-way electrical gate, added to a circuit was not sufficient to turn Brownian motion into energy. The team of physicists at