Home > Green Energy > Piezoelectric >

Yell at Your Phone to Charge It: New Piezoelectric Device Could Help You

black man yelling into phone 300x180 Yell at Your Phone to Charge It: New Piezoelectric Device Could Help YouImagine that one day you could charge your mobile phone or other low-consumption devices just by placing them in noisy areas or by yelling at them. South-Korean scientists from the Sungkyunkwan University in Seoul, are now studying a type of zinc oxide-based device that could do just that.SoundPoweredEnergy e1304975542642 150x150 Yell at Your Phone to Charge It: New Piezoelectric Device Could Help You

Just as speakers turn electricity into sound, the reverse is also possible, thanks to an effect called “piezoelectricity.” Sound of about 100 decibels could as well get transformed into electrical impulses that could be fed into a battery.

Strands of zinc oxide sandwitched between two electrodes are compressed and released by a sound-absorbing membrane on top. In fact, this principle is already being used in piezoelectric microphones like the one you’re carrying in your phone, but now researchers are aiming for something much more efficient.

They even envision millions of these zinc oxide strips mounted nearby motorways, to gather the noise produced by rush-hour traffic and transform it into usable electricity. This could have another beneficial side effect, as it could absorb the energy otherwise dissipated into homes near to the road.

[via inhabitat]

Share it


Like our Facebook page


About the author

Ovidiu has always been a fan of technology and Captain Planet. Unable to ignore the technical possibilities that exist nowadays, he started collecting and blogging about the most interesting news out there and saw that there were a lot of people interested in the same that stuff he was.

Comments

0 comments
Tweet