Piezoelectric Effect of Cellulose Nanocrystals Thin Films.
ACS Macro Lett
; 1(7): 867-870, 2012 Jul 17.
Article
em En
| MEDLINE
| ID: mdl-35607134
ABSTRACT
Ultrathin films of aligned cellulose nanocrystals (CNCs) were assembled on mica supports by using electric field-assisted shear. The relationship between polarization gradients and strain mechanics of the obtained films was examined by monitoring their deflection with an atomic force microscope operated in contact mode. The piezoelectric response of the films was ascribed to the collective contribution of the asymmetric crystalline structure of the cellulose crystals. The magnitude of the effective shear piezoelectric constant (d25) of highly ordered CNC films was determined to be 2.1 Å/V, which is comparable to that of a reference film of a piezoelectric metal oxide.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
ACS Macro Lett
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos