Highly Flexible, Large-Area, and Facile Textile-Based Hybrid Nanogenerator with Cascaded Piezoelectric and Triboelectric Units for Mechanical Energy Harvesting

Jian Song, Bao Yang, Wei Zeng, Zehua Peng, Shuping Lin, Jun Li, Xiaoming Tao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

Abstract

Despite of the rapid development and demonstrations of wearable energy harvesting devices, their industrial applications are limited by the lack of highly flexible, scalable, and facile fabrication methods. Especially, few studies have combined theoretical analysis with the relevant experimental verification. To this end, a highly flexible and large-area textile-based hybrid nanogenerator integrated a net-shaped nanofiber reinforced piezoelectric unit and a triboelectric unit with a microstructured surface configuration is demonstrated. Electrospinning is used to fabricate an optimized Polyvinylidenefluoride (PVDF)-carbon nanotube (CNT)-BaTiO 3 nanofiber/particle nonwoven fabric of 18 cm × 27 cm for the piezoelectric unit without further polarization. Then a large-area freestanding Polydimethylsiloxane (PDMS)-multiwall CNT-graphite flexible composite film of 20 cm × 25 cm, optimized for the triboelectric unit is prepared by the doctor-blading method. The resultant hybrid nanogenerator, 4.5 cm × 5 cm in size, generates a rectified average peak output voltage of 161.66 V, along with the highest peak power output of 2.22 W m −2 , directly driving 150 light-emitting diodes (LEDs). Importantly, an explicit theoretical model for the hybrid nanogenerator is proposed and good agreements are obtained between the theoretical and the corresponding experimental results, which shed new light on the mechanism and predict ways to optimize such hybrid nanogenerators.

Original languageEnglish
Article number1800016
JournalAdvanced Materials Technologies
Volume3
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • flexible nanogenerators
  • hybrid nanogenerators
  • large-scale nanogenerators
  • mechanical energy harvesting
  • theoretical analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

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