ScienceDaily: Energy and Resources News |
| Mobile phones come alive with the sound of music Posted: 12 Aug 2014 09:17 AM PDT Charging mobile phones with sound, like chants from at football ground, could become a reality, according to scientists. Last year, researchers found that playing pop and rock music improves the performance of solar cells. Developing this research further, a team has now created an energy-harvesting prototype (a nanogenerator) that could be used to charge a mobile phone using everyday background noise – such as traffic, music, and our own voices. The team used the key properties of zinc oxide, a material that when squashed or stretched creates a voltage by converting energy from motion into electrical energy, in the form of nanorods. |
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