Room-temperature processed Ag/Pb(Zn1/3Nb2/3)O3–Pb(Zr0.5Ti0.5)O3-based composites for printable piezoelectric energy harvesters

Da Bin Kim, Seung Won Kim, Young Eun Kim, Hong Je Choi, Yong Soo Cho

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5 Citations (Scopus)


Piezoelectric energy harvesters based on polymer-matrix composites may be an ideal choice for wearable low-power electronic devices with high flexibility and reliability. Herein, we propose an electromechanical energy harvester consisting of 0.4 Pb(Zn1/3Nb2/3)O3–0.6 Pb(Zr0.5Ti0.5)O3 (PZN–PZT) and Ag nanoparticles dispersed in an ultraviolet (UV)-curable polymer matrix. The harvesters were fabricated by printing a viscous paste, followed by curing at room temperature under UV light. Despite the lack of piezoelectric contribution from the UV-cured polymer, the resultant energy harvesting performance was pronounced with ∼8.15 V and ∼862 nA for the optimized composition of 30 vol% PZN–PZT and 2 vol% Ag, corresponding to approximately 9.4 and 6.5-fold increases, respectively, relative to the values of the reference sample. The enhanced piezoelectric energy harvesting was assumed to originate from contributions of the PZN–PZT nanoparticles as the sole piezoelectric material and the Ag inclusions as a source of additional space-charge polarization.

Original languageEnglish
Article number109151
JournalComposites Science and Technology
Publication statusPublished - 2022 Feb 8

Bibliographical note

Funding Information:
This work was financially supported by grants ( NRF-2016M3A7B4910151 , NRF-2020M3D1A2102913 , and NRF-2021R1A2C2013501 ) from the National Research Foundation of Korea .

Publisher Copyright:
© 2021 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Engineering(all)


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