A team of Texas researchers have discovered a way to produce energy from energy resulting from vibration. It turns out that electrical energy can be obtained if a certain type of piezoelectric material about 21 nanometers thick is exposed even to vibration of voice.
It is interesting that 21 nanometers seem to be the best value from the 20-23 nanometer range, within which electrical energy can be produced.
Usage of nanotechnologies regarding piezoelectric materials may result in the appearance of self-powered devices including phones, which will not have any replaceable power supplies.
