Piezophotonics: From fundamentals and materials to applications

Jianhua Hao, Chao Nan Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

46 Citations (Scopus)


The piezophotonic effect is the coupling between piezoelectric properties and photoexcitation, where strain-induced piezopotential modulates and controls the relevant optical process. Specifically, metal ions as activators are capable of responding to photoexcitation and subsequent emission of light, also called mechanoluminescence, in general, and piezoluminescence specifically for piezoelectrics. These phenomena are helpful for understanding the materials fundamentals and conceiving widespread device applications. In this article, we briefly introduce the physical mechanisms of piezophotonics, including piezoluminescence. Selected host materials and metal-ion activators are described for demonstrating the piezophotonic effect. We provide a unified profile and recent prototypical demonstrations of light emission triggered by mechanical stimuli. The devices based on these materials offer the advantages of remote detection, nondestructive analysis, and repeatability, hence they are promising candidates for applications in stress sensing, structural health diagnosis, three-dimensional handwriting, magnetic-optical sensing, energy harvesting, biomedicine, novel light sources, and displays.

Original languageEnglish
Pages (from-to)965-969
Number of pages5
JournalMRS Bulletin
Issue number12
Publication statusPublished - 1 Dec 2018


  • luminescence
  • optical properties
  • optoelectronic
  • piezoelectric
  • piezoresponse

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Piezophotonics: From fundamentals and materials to applications'. Together they form a unique fingerprint.

Cite this