Piezotronic effect: An emerging mechanism for sensing applications

Kory Jenkins, Vu Nguyen, Ren Zhu, Rusen Yang

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Strain-induced polarization charges in a piezoelectric semiconductor effectively modulate the band structure near the interface and charge carrier transport. Fundamental investigation of the piezotronic effect has attracted broad interest, and various sensing applications have been demonstrated. This brief review discusses the fundamentals of the piezotronic effect, followed by a review highlighting important applications for strain sensors, pressure sensors, chemical sensors, photodetectors, humidity sensors and temperature sensors. Finally, the review offers some perspectives and outlook for this new field of multi-functional sensing enabled by the piezotronic effect.

Original languageEnglish (US)
Article number108
Pages (from-to)22914-22940
Number of pages27
JournalSensors (Basel, Switzerland)
Volume15
Issue number9
DOIs
StatePublished - Sep 11 2015

Bibliographical note

Publisher Copyright:
© 2015 by the authors; licensee MDPI, Basel, Switzerland.

Keywords

  • Biosensor
  • Chemical sensor
  • Gas sensor
  • Nanowire
  • Photodetector
  • Piezotronic
  • Pressure sensor
  • Strain sensor
  • Temperature sensor
  • Zinc oxide

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