Improving Relative Permittivity and Suppressing Dielectric Loss of Triboelectric Layers for High-Performance Wearable Electricity Generation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

26 Scopus Citations
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Author(s)

  • Xiao Xiao
  • Jianxin Song
  • Alberto Libanori
  • Ching Lee
  • Yuan Gao
  • Yunsheng Fang
  • Zuankai Wang
  • Jun Chen

Detail(s)

Original languageEnglish
Pages (from-to)20251–20262
Journal / PublicationACS Nano
Volume16
Issue number12
Online published15 Dec 2022
Publication statusPublished - 27 Dec 2022

Abstract

High relative permittivity and low dielectric loss are two desired parameters of a triboelectric layer to enhance its mechanical-to-electrical energy conversion efficiency in a triboelectric nanogenerator (TENG). However, the elevated permittivity of the triboelectric layer is always accompanied by increasing dielectric loss, limiting further improvement or even reducing the electrical output. Herein, we report a method for improving the relative permittivity and suppressing the dielectric loss of the triboelectric layer via nanoscale design at the particle-polymer interface. When incorporated with 2 wt % Ag@C, the triboelectric-layer-enhanced TENG (TLE-TENG) presents a 2.6-fold increment in relative permittivity and a 302% current enhancement. An instantaneous peak power density of 1.22 W m-2, an excellent pressure sensitivity of 90.95 V kPa-1, and an optimized sheet resistance (∼0.14 Ω/sq) are attributes of this greatly enhanced device. Such improvements bode well for the implementation of these enhancing strategies to help position TLE-TENGs as pervasive and sustainable power sources and active self-powered sensors in the era of the Internet of Things.

Research Area(s)

  • triboelectric nanogenerator, carbon-coated silver nanofillers, relative permittivity, dielectric loss, flexibility, self-powered sensing, SURFACE FUNCTIONALIZATION, ENERGY, NANOGENERATORS, IMPEDANCE, POWER

Citation Format(s)

Improving Relative Permittivity and Suppressing Dielectric Loss of Triboelectric Layers for High-Performance Wearable Electricity Generation. / Peng, Zehua; Xiao, Xiao; Song, Jianxin et al.
In: ACS Nano, Vol. 16, No. 12, 27.12.2022, p. 20251–20262.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review