Technology

Charge Your Smartphone Mobile Phone by Talking to it

Scientists from Queen Mary University of London (QMUL) and Nokia have created an energy harvesting prototype that can be used to charge your smartphone using everyday noise, like music, traffic or even your voice.

The team of researchers used Zinc oxide to create a voltage by converting energy from motion into electrical energy, in the form of nanorods. Scientists were able to harvest energy and generate a high voltage using the Nanorods. They can respond to vibration and movement created by everyday sound, like music or voices. The prototype energy-harvesting device is about the size of a Nokia Lumia 925, and can generat up to five volts using “everyday background noise” such as traffic, music and voices, which is sufficient to charge a mobile phone.

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