Physicists from the University of Arkansas have developed a graphene-based circuit that can be conventionally considered a “perpetual motion machine” – a generator of infinite and clean energy. This does not contradict the laws of thermodynamics. They learned to extract energy from the thermal motion of particles of graphene atoms.
As it turned out during the experiment, under the influence of never-ending chaotic thermal motion inside graphene, a single fixed plate of this substance one carbon atom thick slowly vibrates and bends.
In fact, this is a variant of one of the versions of microelectromechanical devices (MEMS), which the industry has learned to produce and, one way or another, attached to the case, including the creation of generators of electricity from mechanical vibrations. But no one has yet ventured to create a generator based on capturing oscillations of the thermal motion of atoms, which was considered impossible.
To convert the vibrations of graphene and the resulting alternating current into direct current, physicists from Arkansas proposed a circuit with two diodes. This experiment proved that the circuit generates additional power at the load. Scientists believe that millions of such circuits on a chip can become a source of low-power power supply for autonomous systems, sensors and more.
“We redirected the current in the circuit and turned it into something useful. The next goal of the team is to determine if a constant current can be stored in a capacitor for later use. This goal requires miniaturizing the circuit and applying it to a silicon wafer or die. If millions of these tiny circuits could be built on a 1mm by 1mm chip, they could replace a low-power battery. “– said one of the authors of the study, physics professor Paul Thibado (Paul Thibado).
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