Enhancing the Performance of Fabric-Based Triboelectric Nanogenerators by Structural and Chemical Modification

Pei Yong Feng, Zhike Xia, Binbin Sun, Xin Jing, Heng Li, Xiaoming Tao, Hao Yang Mi, Yuejun Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Fabric-based triboelectric nanogenerators (TENGs) are promising candidates as wearable energy-harvesting devices and self-powered sensors. Booting the power generation performance is an eternal pursuit for TENGs. Herein, an efficient approach was proposed to enhance the triboelectric performance of commercial velvet fabric by enriching the fiber surface with hierarchical structures and amide bonds through chemical grafting of carbon nanotube (CNT) and poly(ethylenimine) (PEI) via a polyamidation reaction. With an optimized modifier concentration, the fabric-based TENG easily achieved over 10 times improvement in output voltage and current at a low modifier content of less than 1 wt %. The modified-fabric-based TENG was fully washable and exhibited excellent robustness and long-term stability. With a maximum power density of 3.2 W/m2 achieved on a 5 × 106 ω external resistor, the TENG was able to serve as a power source for various small electronics such as pedometer, digital watch, calculator, and digital timer. In addition, the TENG demonstrated capability in self-powered tactile and pressure sensing and promising potential in human-computer interface applications. The approach proposed provides a feasible path for boosting the triboelectric performance of fabric-based TENGs and gives insights into the design of fabric-based nanogenerators and smart textiles.

Original languageEnglish
Pages (from-to)16916-16927
Number of pages12
JournalACS Applied Materials and Interfaces
Volume13
Issue number14
DOIs
Publication statusPublished - 14 Apr 2021

Keywords

  • energy harvesting
  • fabric
  • surface modification
  • triboelectric nanogenerator
  • wearable device

ASJC Scopus subject areas

  • Materials Science(all)

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