Flexible piezoelectric zno-paper nanocomposite strain sensor

Hemtej Gullapalli, Venkata S.M. Vemuru, Ashavani Kumar, Andres Botello-Mendez, Robert Vajtai, Mauricio Terrones, Satish Nagarajaiah, Pulickel M. Ajayan

Research output: Contribution to journalArticlepeer-review

329 Scopus citations


The fabrication of a mechanically flexible, piezoelectric nanocomposite material for strain sensing applications is reported. Nanocomposite material consisting of zinc oxide (ZnO) nanostructures embedded in a stable matrix of paper (cellulose fibers) is prepared by a solvothermal method. The applicability of this material as a strain sensor is demonstrated by studying its real-time current response under both static and dynamic mechanical loading. The material presented highlights a novel approach to introduce flexibility into strain sensors by embedding crystalline piezoelectric material in a flexible cellulose-based secondary matrix.

Original languageEnglish (US)
Pages (from-to)1641-1646
Number of pages6
Issue number15
StatePublished - Aug 2 2010

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • General Chemistry
  • General Materials Science


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