Kirigami-inspired triboelectric nanogenerator as ultra-wide-band vibrational energy harvester and self-powered acceleration sensor

Youchao Qi, Yang Kuang, Yaoyao Liu, Guoxu Liu, Jianhua Zeng, Junqing Zhao, Lu Wang, Meiling Zhu (Lead / Corresponding author), Chi Zhang (Lead / Corresponding author)

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)
21 Downloads (Pure)

Abstract

Triboelectric Nanogenerators (TENGs) based on spring-assisted structures play a central role in scavenging vibrational energy that is widely available in the natural environment. However, they suffer from difficulties in adjusting the stiffness and bonding the springs to the triboelectric layer. Here, a kirigami-inspired TENG (KI-TENG) with a kirigami structure is demonstrated, which can be used as an ultra-wide-band vibrational energy harvester and self-powered acceleration sensor. The triboelectric layer of the KI-TENG can be easily processed into the kirigami structure with one or two-degree-of-freedom by laser cutting technology. The frequency responses of the KI-TENG under the influence of mass, acceleration, and initial distance are investigated in detail to optimize the structural design. With optimized structural parameters, the KI-TENG can not only harvest broadband vibration energy from 2 to 49 Hz in vertical vibration state but also obtain high output performance over a wide frequency range in horizontal vibration state. Moreover, the KI-TENG can be used as a sensor measuring acceleration from 1 to 9 m/s2. This work demonstrates a compact TENG coupled with the kirigami structure for energy harvesting and active sensing, which has great prospects in intelligent plants, artificial intelligence, and the internet age.
Original languageEnglish
Article number120092
Number of pages9
JournalApplied Energy
Volume327
Early online date12 Oct 2022
DOIs
Publication statusPublished - 1 Dec 2022

Keywords

  • Kirigami structure coupling
  • Vibrational energy harvester
  • Self-powered sensor
  • Ultra-wide-band
  • Triboelectric nanogenerator

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