ZnO is receiving a considerable attention for the development of novel cost-effective nanostructures with outstanding functional properties for applications in electronics and energy. In this paper, we investigate the effects of the nonlinear piezoelectricity, that has been recently observed in ZnO nanostructures, on the piezotronic effect of ZnO nanowires (NWs). We insert a physically-based model of the nonlinear direct piezoelectric effect into a fully-coupled thermo-mechanical-electric scheme to study the current-voltage characteristic of ZnO NWs under a purely vertical compressive/tensile strain. Our results show for the first time that the nonlinear piezoelectricity deeply affects the current transport processes inside the NW and the behavior of devices for piezoelectric-piezotronic applications and provides remarkable insights into the underlying physics.

Impact of non-linear piezoelectricity on the piezotronic effect of ZnO nanowires / Araneo, Rodolfo; Bini, Fabiano; Pea, Marialilia; Notargiacomo, Andrea; Rinaldi, Antonio Paolo; Celozzi, Salvatore. - In: IEEE TRANSACTIONS ON NANOTECHNOLOGY. - ISSN 1536-125X. - STAMPA. - 15:3(2016), pp. 512-520. [10.1109/TNANO.2016.2538798]

Impact of non-linear piezoelectricity on the piezotronic effect of ZnO nanowires

ARANEO, Rodolfo;BINI, FABIANO;NOTARGIACOMO, andrea;RINALDI, Antonio Paolo;CELOZZI, Salvatore
2016

Abstract

ZnO is receiving a considerable attention for the development of novel cost-effective nanostructures with outstanding functional properties for applications in electronics and energy. In this paper, we investigate the effects of the nonlinear piezoelectricity, that has been recently observed in ZnO nanostructures, on the piezotronic effect of ZnO nanowires (NWs). We insert a physically-based model of the nonlinear direct piezoelectric effect into a fully-coupled thermo-mechanical-electric scheme to study the current-voltage characteristic of ZnO NWs under a purely vertical compressive/tensile strain. Our results show for the first time that the nonlinear piezoelectricity deeply affects the current transport processes inside the NW and the behavior of devices for piezoelectric-piezotronic applications and provides remarkable insights into the underlying physics.
2016
current-voltage characteristic; nanowire; non-linear piezoelectricity; semiconducting materials; zinc-oxide; electrical and electronic engineering; computer science applications; computer vision and pattern recognition
01 Pubblicazione su rivista::01a Articolo in rivista
Impact of non-linear piezoelectricity on the piezotronic effect of ZnO nanowires / Araneo, Rodolfo; Bini, Fabiano; Pea, Marialilia; Notargiacomo, Andrea; Rinaldi, Antonio Paolo; Celozzi, Salvatore. - In: IEEE TRANSACTIONS ON NANOTECHNOLOGY. - ISSN 1536-125X. - STAMPA. - 15:3(2016), pp. 512-520. [10.1109/TNANO.2016.2538798]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/882626
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