Droplet-based triboelectric devices using liquid dielectrics for self-powered sensing applications

Gyeongho Yun, Minho Nam, Suhyeon Cho, Rian Kim, Young Woo Heo, Seunghyup Lee

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Triboelectric nanogenerators (TENGs) have attracted great interests by exploiting the complex interplay between contact electrification and electrostatic induction. The versatility of tribo-dielectric materials offers significant advantages for environmentally adaptive device design. In this regard, liquid dielectrics provide intimate contact between filled materials and high dielectric strength. Herein, a liquid dielectric-based TENGs system featuring a charge-transfer liquid layer is presented. A multifaceted summary is presented to illustrate the relationship between liquid dielectric materials and charge transfer mechanisms. New strategies for exploiting the dielectric properties of various liquids to control their electrical properties and monitor the parameters of liquid dielectric properties are highlighted. Additionally, it contributes to the advancement of self-powered sensing technology with increased flexibility, capacitance tuning, and sensor functionality through easy modularization. These achievements contribute to the understanding of charge transfer mechanisms in liquids and highlight their potential for self-powered sensing applications.

Original languageEnglish
Article number155659
JournalChemical Engineering Journal
Volume497
DOIs
StatePublished - 1 Oct 2024

Keywords

  • Droplet-based TENGs (D-TENGs)
  • Liquid dielectric
  • Self-powered sensor
  • Triboelectric nanogenerators (TENGs)
  • Tribolelectrical sensor

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