Encyclopedia of Nanotechnology

Living Edition
| Editors: Bharat Bhushan

Piezoelectric Effect at Nanoscale

  • Zhong Lin Wang
  • Ying Liu
Living reference work entry
DOI: https://doi.org/10.1007/978-94-007-6178-0_273-2

Synonyms

Definition

Piezoelectricity is a phenomenon of strain-induced electric polarization in certain crystals, which can be used to create a mechanical action by applying an external voltage for sensors and actuators or a mechanical straining that can produce a voltage for energy conversion.

Piezoelectricity

Piezoelectricity was discovered by Jacques and Pierre Curie during their systematic studies of the effect of pressure on the generation of electrical charge by crystals in 1880. It is a reversible physical phenomenon, as there is the direct piezoelectric effect and the reverse piezoelectric effect.

Direct piezoelectric effect is defined as: electric polarization produced by mechanical strain in crystals belonging to certain classes, the polarization being proportional to the strain and changing sign with it [1].

Reverse (or inverse) piezoelectric effect is defined as: a piezoelectric crystal becomes strained, when electrically polarized by an amount...

Keywords

Schottky Barrier Wurtzite Structure Piezoelectric Effect Piezoelectric Coefficient Schottky Barrier Height 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringGeorgia Institute of TechnologyAtlantaUSA