The clash of mechanical and electrical size-effects in ZnO nanowires and a double power law approach to elastic strain engineering of piezoelectric and piezotronic devices.
Adv Mater
; 26(34): 5976-85, 2014 Sep 10.
Article
en En
| MEDLINE
| ID: mdl-25138083
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.
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MEDLINE
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En
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Adv Mater
Asunto de la revista:
BIOFISICA
/
QUIMICA
Año:
2014
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Article