An illustration showing the continuous movement of the film. (Courtesy: Ning Zhang/MIT)

Somersaulting film generates electricity

Jan 10, 2013

A specialized polymer film that can generate electricity thanks to its response to moisture has been created by a team of researchers in the US. The composite polymer absorbs minute amounts of evaporated water from its environment, causing it to curl up and down repeatedly. This continuous motion is converted into electrical energy that can be stored in small generators, and eventually could be harnessed to power micro- and nanoelectronic devices, such as remote sensors or actuators, as well as having biological applications.

Read more: Somersaulting film generates electricity – physics world.

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