All-fiber transparent piezoelectric harvester with a cooperatively enhanced structure

Yiin Kuen Fuh, Hsi Chun Ho, Bo Sheng Wang, Shan Chien Li

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

In this paper, we demonstrated a highly-flexible all-fiber based transparent piezoelectric harvester (ATPH) by using the direct-write, near-field electrospinning (NFES) technique and polyvinylidene fluoride (PVDF) micro/nano fibers (MNFs) as source materials. Here, we comprehensively show that transferred high performance transparent electrodes with Au-coated nanowire (NW) electrodes can be obtained using a facile and scalable combined fabrication route of both electrospinning and sputtering processes. Au-coated MNFs of a.c. 110 nm thick can significantly reduce junction resistance, which results in high transmittance (90%) at low sheet resistance (175 Ω sq-1). The Au-coated MNFs electrodes also show great flexibility and stretchability, which easily surpass the brittleness of indium tin oxide (ITO) films. Further improvement in ATPH performance was realized by rolling the device into a cylindrical shape, resulting in an increase in power output due to the cooperatively enhanced effect. The rolled ATPH with 0.34 cm diameter produces a high output voltage of ∼4.1 V, current ∼295 nA at a strain of 0.5% and 5 hz. This can efficiently run commercially available electronic components in a self-powered mode without any external electrical supply.

Original languageEnglish
Article number435403
JournalNanotechnology
Volume27
Issue number43
DOIs
StatePublished - 22 Sep 2016

Keywords

  • all-fiber based transparent piezoelectric harvester (ATPH)
  • direct-write
  • near-field electrospinning (NFES)
  • polyvinylidene fluoride (PVDF)

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