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July 16, 2015 12:00 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/zrZWMNxQrxg/transparent-paper-produces-power-with-just-a-touch
Transparent Paper Produces Power With Just a Touch
ckwu writes: A new transparent-paper device can generate electrical power from a user's touch. The paper energy-harvester could be used to make disposable, self-powered touch screens that fold; interactive light-up books; touch-sensitive skin for prosthetics; and security systems for art and documents, according to the researchers. The device is made out of nanopaper, a tangled mat made of nanometers-wide cellulose fibers that is transparent and smooth like plastic. The researchers deposit carbon nanotubes on the nanopaper to make a pair of electrodes, and then sandwich a polyethylene film in between. The generator works via electrostatic induction. Pressing one side of the device causes a change in the charge balance between the nanotube electrodes, resulting in a flow of current through the device. Releasing the pressure causes electrons to flow back, so repeated pressing and releasing creates continuous current. The researchers demonstrated that the generator could produce enough power when pressed to light up a small liquid-crystal display.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/zrZWMNxQrxg/transparent-paper-produces-power-with-just-a-touch
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