All 3D-printed stretchable piezoelectric nanogenerator with non-protruding kirigami structure

Xinran Zhou, Kaushik Parida, Oded Halevi, Yizhi Liu, Jiaqing Xiong, Shlomo Magdassi, Pooi See Lee

Research output: Contribution to journalArticlepeer-review


With the advancement of wearable electronics, stretchable energy harvesters are attractive to reduce the need of frequent charging of wearable devices. In this work, a stretchable kirigami piezoelectric nanogenerator (PENG) based on barium titanate (BaTiO3) nanoparticles, Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) matrix, and silver flakes-based electrode is fabricated in an all-3D printable process suited for additive manufacturing. The 3D printable extrusion ink is formulated for facile solvent evaporation during layer formation to enable heterogenous multilayer stacking. A well-designed modified T-joint-cut kirigami structure is realized to attain a non-protruding, high structural stretchability performance, overcoming the out-of-plane displacement of the typical kirigami structure and therefore enabling the pressing-mode of a kirigami-structured PENG. This PENG can be stretched to more than 300% strain, which shows a great potential for application in wearable electronic systems. Furthermore, a self-powered gait sensor is demonstrated using this PENG.

Original languageAmerican English
Article number104676
JournalNano Energy
StatePublished - Jun 2020


  • 3D printing
  • Direct-write printing
  • Gait analysis
  • Kirigami
  • Piezoelectric nanogenerator
  • Stretchable

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • General Materials Science
  • Renewable Energy, Sustainability and the Environment


Dive into the research topics of 'All 3D-printed stretchable piezoelectric nanogenerator with non-protruding kirigami structure'. Together they form a unique fingerprint.

Cite this