A new device being developed by Washington State University physicist Yi Gu could one day turn the heat generated by a wide array of electronics into a usable fuel source.
The device is a multicomponent, multilayered composite material called a van der Waals Schottky diode. It converts heat into electricity up to three times more efficiently than silicon -- a semiconductor material widely used in the electronics industry. While still in an early stage of development, the new diode could eventually provide an extra source of power for everything from smartphones to automobiles.
"The ability of our diode to convert heat into electricity is very large compared to other bulk materials currently used in electronics," said Gu, an associate professor in WSU's Department of Physics and Astronomy. "In the future, one layer could be attached to something hot like a car exhaust or a computer motor and another to a surface at room temperature. The diode would then use the heat differential between the two surfaces to create an electric current that could be stored in a battery and used when needed."
Gu recently published a paper on the Schottky diode in The Journal of Physical Chemistry Letters.
To read more, click here.