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Home > News > Helical piezoelectric 'nanosprings' could be actuators & transducers

October 16th, 2003

Helical piezoelectric 'nanosprings' could be actuators & transducers

Researchers at the Georgia Institute of Technology have developed a new class of nanometer-scale structures that spontaneously form helical shapes from long ribbon-like single crystals of zinc oxide (ZnO). Dubbed "nanosprings," the new structures have piezoelectric and electrostatic polarization properties that could make them useful in small-scale sensing and micro-system applications. Just 10 to 60 nanometers wide and 5-20 nanometers thick - but up to several millimeters long - the new structures are similar to but smaller than the "nanobelts" first reported by Georgia Tech scientists two years ago in the journal Science.


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