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Material Turns Sound Waves Into Electricity
Eco Geek Latest —
... and 23 nanometers thick, it can capture 100% more energy.
Such a size makes this material perfect to stick into a cell phone. The sound waves emitted by the phone (as well as, presumably, those emitted by its owner) exert stress on the material, which in turn generates electricity. Obviously, energy cant be generated from nowhere. But if it can simply be absorbed from the environment, you could have for all intents and purposes a self-charging device.
Via Science Daily
Sound Wave Harvesting Justifies Your Annoyingly Loud Phone Voice [Nanotechnology]
Gizmodo —
... continues, this time with a nano-piezo technology that could use sound waves to charge cellphones. But how long must you talk before you can... talk? Science Daily reports that Tahir Cagin, a professor in the chemical engineering department at Texas A&M;, has merged the really old science of piezoelectrics with the very new science of nanotechnology to discover that a technique for harvesting energy actually gets way more efficient at the nano level. Specifically, when a piezoelectric film used to convert vibrations into energy is reduced to around 21 nanometers in thickness, ...
Piezoelectrics could lead to voice-powered cellphones
Engadget Mobile —
... Just imagine -- yapping for hours on end to your dream lover could actually leave your cellphone with more juice than what it started with. This completely bizarre scenario could theoretically become a reality according to new research from a professor at Texas A&M University, and it's all thanks to the magic of ...
Piezoelectrics could lead to voice-powered cellphones
Engadget —
Just imagine -- yapping for hours on end to your dream lover could actually leave your cellphone with more juice than what it started with. This completely bizarre scenario could theoretically become a reality according to new research from a professor at Texas A&M University, and it's all thanks to the magic of ...
Nano-material breakthrough may make voice-powered mobile phones possible!
IntoMobile - Cell Phone News, Information, and Analysis —
... at 21 nanometers thick. Any thicker or thinner and the energy conversion capability of the material drops significantly.
Future applications for nano-sized piezoelectrics might just supplement, or entirely supplant, the traditional battery charger in future mobile devices. With enough of the right-sized piezoelectric elements arrayed in a cellphone’s receiver, the handset could be charged using sound vibrations.
Imagine that.
[Via: EngadgetMobile and ScienceDaily]
Image courtesy http://www.nec.co.jp
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