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Piezoelectric Potential Distribution in a Bent ZnO Nanorod Cantilever

Authors :
Hai Liang Zhang
Xue Ao Zhang
Zheng Zheng Shao
Fei Wang
Sheng Li Chang
Guang Wang
Liang Fang
Hong Hui Jia
Source :
Materials Science Forum. 694:23-27
Publication Year :
2011
Publisher :
Trans Tech Publications, Ltd., 2011.

Abstract

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

Details

ISSN :
16629752
Volume :
694
Database :
OpenAIRE
Journal :
Materials Science Forum
Accession number :
edsair.doi...........7a1fb7ff9163438cf966a2fcb5b1bc87
Full Text :
https://doi.org/10.4028/www.scientific.net/msf.694.23