3D core-multishell piezoelectric nanogenerators

Performance Optimization of Vertical Nanowirebased Piezoelectric Nanogenerators

is among the most abundant and reliable energy sources in our daily life, regardless of weather or temperature conditions, in contrast with solar [ 2 ] and thermoelectric energies. [ 3 ] New materials, structures and technologies have been subjects of active research and development. [ 4–7 ] Likewise, at the nanoscale, energy harvesting nanotechnologies based on the piezoelectric effect have be...

A hybrid piezoelectric structure for wearable nanogenerators.

A hybrid-fiber nanogenerator comprising a ZnO nanowire array, PVDF polymer and two electrodes is presented. Depending on the bending or spreading action of the human arm, at an angle of ∼90°, the hybrid fiber reaches electrical outputs of ∼0.1 V and ∼10 nA cm(-2) . The unique structure of the hybrid fiber may inspire future research in wearable energy-harvesting technology.

Sound-driven piezoelectric nanowire-based nanogenerators.

The desire for completely self-powered electronics has led to a continuously increasing amount of related research over the last decade. [ 1 ] Along with the dramatic advances in nanotechnology and low power consumption electronics, wireless and maintenance-free multifunctional nanodevices that can be used anywhere at any time have attracted much attention. [ 2–4 ] However, these devices requir...

Piezoelectric nanogenerators—Harvesting ambient mechanical energy at the nanometer scale

Piezoelectric nanogenerators based on zinc oxide nanowire arrays.

We have converted nanoscale mechanical energy into electrical energy by means of piezoelectric zinc oxide nanowire (NW) arrays. The aligned NWs are deflected with a conductive atomic force microscope tip in contact mode. The coupling of piezoelectric and semiconducting properties in zinc oxide creates a strain field and charge separation across the NW as a result of its bending. The rectifying ...