Interfacial Roughness Enhanced Gel/Elastomer Interfacial Bonding Enables Robust and Stretchable Triboelectric Nanogenerator for Reliable Energy Harvesting

Titao Jing, Shuchang Wang, Haiyuan Yuan, Yujue Yang, Ming Xue, Bingang Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

Gel-based triboelectric nanogenerator (TENG) has demonstrated promising potentials in stretchable electronics owing to gel electrodes’ intrinsic softness, stretchability, and conductivity. However, delamination between gel and elastomer layers in deformations remains a considerable challenge for gel-based TENG, which most often induces structure failure. Herein, gels are regarded as adhesives and further effectively enhances interfacial bonding strength by a rough interface in adhesives’ view, which exploits gels’ liquid-to-solid transformation. This method just needs surface roughness of elastomer, which avoids chemical modification. Moreover, this method is effective to both organogel with good stickiness and hydrogel with weak stickiness, demonstrating wide applicability to different gels. Owing to the tough gel/elastomer interfacial bonding, TENG-Rough largely solves delamination problem under various deformations and the corresponding output performances of TENG-Rough are also maintained, implying a robust stretchable TENG device for reliable energy harvesting. This work demonstrates a general and facile method to enhance interfacial bonding in an adhesives’ way, which provides a view for addressing delamination problem in gel-based TENGs and other kinds of gel-based devices.

Original languageEnglish
Article number2206528
JournalSmall
Volume19
Issue number12
DOIs
Publication statusPublished - 22 Mar 2023

Keywords

  • delamination
  • gel-based triboelectric nanogenerators
  • gel/elastomer interfacial bonding
  • liquid-to-solid transformation
  • rough interfaces

ASJC Scopus subject areas

  • Biotechnology
  • General Chemistry
  • Biomaterials
  • General Materials Science

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