Piezo-semiconductive quasi-1D nanodevices with or without anti-symmetry.

Araneo, Rodolfo; Lovat, Giampiero; Burghignoli, Paolo; Falconi, Christian · Adv Mater · 2012

basic_science · Level V

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Abstract

The piezopotential in floating, homogeneous, quasi-1D piezo-semiconductive nanostructures under axial stress is an anti-symmetric (i.e., odd) function of force. Here, after introducing piezo-nano-devices with floating electrodes for maximum piezo-potential, we show that breaking the anti-symmetric nature of the piezopotential-force relation, for instance by using conical nanowires, can lead to better nanogenerators, piezotronic and piezophototronic devices.

Medical subject headings