The piezoelectric performance of ultra-strength ZnO nanowires (NWs) depends on the subtle interplay between electrical and mechanical size-effects. "Size-dependent" modeling of compressed NWs illustrates why experimentally observed mechanical stiffening can indeed collide with electrical size-effects when the size shrinks, thereby lowering the actual piezoelectric function from bulk estimates. "Smaller" is not necessarily "better" in nanotechnology.
The clash of mechanical and electrical size-effects in ZnO nanowires and a double power law design concept for piezoelectric and piezotronic devices / A., Rinaldi; Araneo, Rodolfo; Celozzi, Salvatore; M., Pea; A., Notargiacomo. - In: ADVANCED MATERIALS. - ISSN 1521-4095. - 26:34(2014), pp. 5976-5985. [10.1002/adma.201401026]
The clash of mechanical and electrical size-effects in ZnO nanowires and a double power law design concept for piezoelectric and piezotronic devices
ARANEO, Rodolfo;CELOZZI, Salvatore;
2014
Abstract
The piezoelectric performance of ultra-strength ZnO nanowires (NWs) depends on the subtle interplay between electrical and mechanical size-effects. "Size-dependent" modeling of compressed NWs illustrates why experimentally observed mechanical stiffening can indeed collide with electrical size-effects when the size shrinks, thereby lowering the actual piezoelectric function from bulk estimates. "Smaller" is not necessarily "better" in nanotechnology.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.