Conformal, graphene-based triboelectric nanogenerator for self-powered wearable electronics

Hyenwoo Chu, Houk Jang, Yongjun Lee, Youngcheol Chae, Jong Hyun Ahn

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Long-term operation is a key requirement for the widespread use of wearable devices and systems. Typical energy-storage and harvesting approaches relying on rigid materials and device structures hinder conformable integration on soft and wrinkled human skin. Here, we report triboelectric nanogenerators (TENGs) that can form directly on human skin and operate wearable devices without recharging process. TENGs with a single-electrode-based structure were fabricated with atomically thin graphene (<1 nm), polydimethylsiloxane (<1.5 µm) and polyethylene terephthalate (<0.9 µm) as the electrode, electrification layer and substrate, respectively, for low flexural rigidity. The conformal TENGs formed on human skin generated electricity by contact with various clothes or the human body. Their triboelectric performance depended on the effective contact area enabled self-powered touch sensors for an assistive communication system by converting analogous information of human motions to digital signals. Thus, TENGs have potential applications in a wide range of future wearable electronics.

Original languageEnglish
Pages (from-to)298-305
Number of pages8
JournalNano Energy
Volume27
DOIs
Publication statusPublished - 2016 Sep 1

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

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