Piezoelectric energy harvesting and charging performance of Pb(Zn1/3Nb2/3)O3–Pb(Zr0.5Ti0.5)O3 nanoparticle-embedded P(VDF-TrFE) nanofiber composite sheets

Kaihua Liu, Hong Je Choi, Byeong Kon Kim, Da Bin Kim, Chan Su Han, Seung Won Kim, Han Byul Kang, Jin Woo Park, Yong Soo Cho

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Piezoelectric composite structures have been studied to optimize energy harvesting and charging performance. Here, a specific piezoelectric composition of 0.4Pb(Zn1/3Nb2/3)O3–0.6Pb(Zr0.5Ti0.5)O3 (PZN–PZT) has been selected for better energy harvesting performance. Different contents of PZN-PZT nanoparticles of ∼54 nm were embedded into a matrix of poly(vinylidene fluoride–trifluoroethylene) [P(VDF–TrFE)] by a single electrospinning process. The single-phase perovskite nanoparticles were initially prepared by combustion synthesis with the assistance of polyacrylic acid (PAA) as a fuel. The enhanced energy harvesting performance of flexible composite nanogenerators was ascertained by exhibiting ∼3.4 V output voltage and ∼240 nA output current for the 20 vol% nanoparticles-incorporated single sheet. The charging capability was found to be enhanced by designing the stacked nanofiber composite sheets in series, suggesting that the rate of charging and the saturation voltage are dependent on the number of composite sheets in series. For instance, the double stacked sheets exhibited a ∼5.7 V charging capability within ∼150 s.

Original languageEnglish
Pages (from-to)296-302
Number of pages7
JournalComposites Science and Technology
Publication statusPublished - 2018 Nov 10

Bibliographical note

Funding Information:
This work was financially supported by a grant ( NRF-2016M3A7B4910151 ) of the National Research Foundation of Korea and also by the Industrial Strategic Technology Development Program ( #10079981 ) funded by the Ministry of Trade, Industry & Energy ( MOTIE ) of Korea.

Publisher Copyright:
© 2018 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Engineering(all)


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