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Proceedings Paper

Characterization of direct and converse piezoelectricity of cellulose-based electro-active paper
Author(s): Gyu Young Yun; Yuanxie Li; Heung Soo Kim; Jaehwan Kim
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Paper Abstract

In-plane piezoelectric charge constant of Electro-Active paper (EAPap) was investigated based on direct and converse piezoelectric effects. EAPap samples were made with cellulose film with very thin gold electrode coated on both sides of the film. To characterize direct piezoelectricity of EAPap, induced charge was measured when mechanical stress was applied to EAPap. In-plane piezoelectric charge constant was extracted from the relation between induced charge and applied in-plane normal stress. To investigate converse piezoelectricity, induced in-plane strain was measured when electric field was applied to EAPap. Piezoelectric charge constant was also extracted from the relation of induced inplane strain and applied electric field. Piezoelectric charge constants obtained from direct and converse piezoelectricity are 31 pC/N and 178 x 10-12m/V for 45 degree sample, respectively. Measured piezoelectric charge constants of EAPap provide promising potential as a piezoelectric material.

Paper Details

Date Published: 5 April 2007
PDF: 9 pages
Proc. SPIE 6524, Electroactive Polymer Actuators and Devices (EAPAD) 2007, 65241X (5 April 2007); doi: 10.1117/12.715111
Show Author Affiliations
Gyu Young Yun, Inha Univ. (South Korea)
Yuanxie Li, Inha Univ. (South Korea)
Heung Soo Kim, Inha Univ. (South Korea)
Jaehwan Kim, Inha Univ. (South Korea)

Published in SPIE Proceedings Vol. 6524:
Electroactive Polymer Actuators and Devices (EAPAD) 2007
Yoseph Bar-Cohen, Editor(s)

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