Affordable Access

deepdyve-link
Publisher Website

Self-Healable Reprocessable Triboelectric Nanogenerators Fabricated with Vitrimeric Poly(hindered Urea) Networks.

Authors
  • Patel, Twinkal
  • Kim, Minsoo P
  • Park, Junyoung
  • Lee, Tae Hee
  • Nellepalli, Pothanagandhi
  • Noh, Seung Man
  • Jung, Hyun Wook
  • Ko, Hyunhyub
  • Oh, Jung Kwon
Type
Published Article
Journal
ACS Nano
Publisher
American Chemical Society
Publication Date
Aug 25, 2020
Identifiers
DOI: 10.1021/acsnano.0c03819
PMID: 32840992
Source
Medline
Language
English
License
Unknown

Abstract

In recent years the advent of highly deformable and healable electronics is exciting and promising for next-generation electronic devices. In particular, self-healable triboelectric nanogenerators (SH-TENGs) serve as promising candidates based on the combination of triboelectric effect, electrostatic induction, and self-healing action. However, the majority of SH-TENGs have been devised with weak polymeric networks that are healed with reversible supramolecular interactions or disulfides, thus resulting in poor mechanical properties and low resistance to creeping. To address this issue, we demonstrate the integration of mechanically strong and self-healable poly(hindered urea) (PHU) network in the fabrication of effective TENGs. The designed PHU network are flexible but shows greater mechanical property of tensile strength as high as 1.7 MPa at break. The network is capable of self-healing quickly and repeatedly as well as reprocessable under a mild condition, enabling the recovery of triboelectric performances after the complete healing of the damaged surfaces. Further, the interfacial-polarization-induced enhancement of dielectric constant endows our SH-TENG with the highest triboelectric output performance (169.9 V/cm2) among the reported healable TENGs. This work presents an avenue to the development of mechanical energy harvesting devices and self-powered sensors with excellent stretchability, high recoverability, and good mechanical strength.

Report this publication

Statistics

Seen <100 times