How does electron in a piezoelectric material flow to produce electric

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SUMMARY

The flow of electrons in piezoelectric materials occurs when mechanical stress is applied, resulting in a deformation that creates a non-zero dipole moment. This deformation leads to the movement of electrons from regions of higher electronegativity to lower electronegativity, generating an electric current. Continuous deformation is necessary to maintain the electric current, as the piezoelectric effect relies on the dynamic changes in the material's structure. Understanding these principles is essential for applications in various fields, including civil engineering and nanotechnology.

PREREQUISITES
  • Understanding of piezoelectricity and its principles
  • Familiarity with dipole moments and electronegativity
  • Knowledge of mechanical stress and its effects on materials
  • Basic concepts of electric current generation
NEXT STEPS
  • Research "First Principles Theories of Piezoelectric Materials" for foundational insights
  • Explore "Theory of Piezoelectric Materials and Their Applications in Civil Engineering" for practical applications
  • Study "Fundamental Theory of Piezotronics" to understand the integration of piezoelectric materials in electronics
  • Investigate the relationship between mechanical stress and electric current in piezoelectric materials
USEFUL FOR

This discussion is beneficial for materials scientists, electrical engineers, and researchers involved in the development and application of piezoelectric materials in technology and engineering fields.

kevin_tee
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How does electron in a piezoelectric material flow to produce electricity? I read about piezoelectricity but I don't know exactly how it works. When stress is apply to piezoelectric material, the structure deform and create non-zero dipole moment and then what happen? How does electron flow? Does electron flow from higher electronegativity to lower electronegativity and why piezoelectric material must keep be deforming to produce electric current, can it just deform and keep it in that shape to produce constant electric current? So simply, I don't know how electron flow from where to where inside piezoelectric material. Thank you.
 
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See if these references help:

First Principles Theories of Piezoelectric Materials
http://arxiv.org/ftp/cond-mat/papers/0702/0702686.pdf

Theory of Piezoelectric Materials and Their Applications in Civil Engineering
http://dspace.mit.edu/bitstream/handle/1721.1/66839/757753448.pdf?sequence=1

Fundamental Theory of Piezotronics
http://nanoscience.gatech.edu/paper/2011/11_AM_02.pdf

http://scholar.lib.vt.edu/theses/available/etd-042299-150134/unrestricted/Chapter2.pdf

http://www.sonustc.com/la_zh/upload/DownFiles/TD/Piezoelectric_Theory.pdf
 
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Likes   Reactions: estv
Thanks for reply, I will take my time reading it.
 

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