Piezoelectric Potential Distribution in a Bent ZnO Nanorod Cantilever

Abstract:

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The piezoelectric potential generated in a bent ZnO nanorod cantilever is analyzed by means of the first piezoelectric effect approximation. The results show that the piezoelectric potential in the nanorod is proportional to lateral force but is independent along the longitudinal direction. And the electric potential in the tensile area and that of compressive area are antisymmetric in cross section of the nanorod, which makes the nanorod become a "parallel plated capacitor" for piezoelectric nanodevices, such as nanogenerator. The investigation of the carriers influence on the piezoelectric potential in a bent ZnO nanorod reveals that the positive piezoelectric potential in stretched side of the bent nanorod is significantly screened by the carriers and the negative potential in compressed side is well preserved when considering a moderate carrier concentration of

Info:

Periodical:

Edited by:

Ran Chen

Pages:

23-27

DOI:

10.4028/www.scientific.net/MSF.694.23

Citation:

Z. Z. Shao et al., "Piezoelectric Potential Distribution in a Bent ZnO Nanorod Cantilever", Materials Science Forum, Vol. 694, pp. 23-27, 2011

Online since:

July 2011

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Price:

$35.00

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