Acoustic energy harvesting is the process by which energy is derived from external noise sources, captured, stored, and controlled for small wireless autonomous devices. Acoustic energy harvesting is not as popular as the other types of energy harvesting method since sound waves have lower power density. However, in this age of efficiency and alternative energy sources research, acoustic energy harvesting has become something that can’t be overlooked since it it one of the vastly available energy sources.
Fujifilm has used the Nanotech 2013 conference in Tokyo to demonstrate some progress with the creation of a new thermoelectric conversion material. Such a material can convert temperature differences directly into electricity, which can then be stored or used immediately to power or charge some device.
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