Stretchable-rubber-based triboelectric nanogenerator and its application as self-powered body motion sensors

Fang Yi, Long Lin, Simiao Niu, Po Kang Yang, Zhaona Wang, Jun Chen, Yusheng Zhou, Yunlong Zi, Jie Wang, Qingliang Liao, Yue Zhang, Zhong Lin Wang

Research output: Contribution to journalArticlepeer-review

175 Citations (Scopus)

Abstract

A stretchable-rubber-based (SR-based) triboelectric nanogenerator (TENG) is developed that can not only harvest energy but also serve as self-powered multifunctional sensors. It consists of a layer of elastic rubber and a layer of aluminum film that acts as the electrode. By stretching and releasing the rubber, the changes of triboelectric charge distribution/density on the rubber surface relative to the aluminum surface induce alterations to the electrical potential of the aluminum electrode, leading to an alternating charge flow between the aluminum electrode and the ground. The unique working principle of the SR-based TENG is verified by the coupling of numerical calculations and experimental measurements. A comprehensive study is carried out to investigate the factors that may influence the output performance of the SR-based TENG. By integrating the devices into a sensor system, it is capable of detecting movements in different directions. Moreover, the SR-based TENG can be attached to a human body to detect diaphragm breathing and joint motion. This work largely expands the applications of TENG not only as effective power sources but also as active sensors; and opens up a new prospect in future electronics. A stretchable-rubber-based triboelectric nanogenerator is developed, which can not only harvest energy but also serve as self-powered multifunctional sensors. It is composed of a layer of elastic rubber and a layer of aluminum film that acts as the electrode. Electrical outputs are generated by stretching and releasing the rubber. It can be attached to a human body to detect diaphragm breathing and joint motion.

Original languageEnglish
Pages (from-to)3688-3696
Number of pages9
JournalAdvanced Functional Materials
Volume25
Issue number24
DOIs
Publication statusPublished - Jun 1 2015
Externally publishedYes

Keywords

  • biomedical monitoring
  • motion sensors
  • self-powered electronics
  • stretching
  • triboelectric nanogenerators

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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