ADVANCED TECHNOLOGY

摘要

Researchers at the Georgia Institute of Technology (www.gatech.edu) have come up with some tiny nanowires that generate electricity when they vibrate. Just like the quartz crystal in a watch, the zinc-oxide nanowires are piezoelectric, so bending causes them to produce an electrical charge. Only 20 to 40 billionths of a meter in diameter, each fiber works with millions of others to form a nanogenerator capable of producing significant amounts of energy from the slightest activity.