An Environmental-Inert and Highly Self-Healable Elastomer Obtained via Double-Terminal Aromatic Disulfide Design and Zwitterionic Crosslinked Network for Use as a Triboelectric Nanogenerator

Syun Hong Chou, Hong Wei Lu, Ta Chung Liu, Yi Ting Chen, Yen Lin Fu, Yung Hsin Shieh, Ying Chih Lai*, San Yuan Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Due to the ongoing development of portable/mobile electronics, sources to power have received widespread attention. Compared to chemical batteries as power sources, triboelectric nanogenerators (TENGs) possess lots of advantages, including the ability to harvest energy via human motions, flexible structures, environment-friendliness, and long-life characteristics. Although many self-healable TENGs are reported, the achievement of a muscle-like elasticity and the ability to recover from inevitable damage under extreme conditions (such as a high/low temperature and/or humidity) remain a challenge. Herein, a “double-terminal aromatic disulfide” on a structure with zwitterions as branched chains is reported to engineer the high-efficient self-healable elastomer for application in a flexible TENG. The as-designed material exhibits a repeatable elastic recovery (at 250% elongation) and a self-healing efficiency with an ultimate tensile stress of 96% over 2 h, representing an improvement on previously reported disulfide-based elastomers. The elastomer can autonomously recover by 50% even at a subzero temperature of −30 °C within 24 h. The elastomer-based TENG, as a self-driven sensor for detecting human behavior, is demonstrated to exhibit stable outputs and self-healing in the temperature range of −30 to 60 °C, and so is expected to promote the development of self-powered electronics for next-generation human–machine communications.

Original languageEnglish
Article number2202815
JournalAdvanced Science
Volume10
Issue number2
DOIs
StatePublished - 13 Jan 2023

Keywords

  • autonomous self-healable materials
  • harsh environment
  • human–device interfaces
  • power sources
  • triboelectric nanogenerators

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