Case-encapsulated triboelectric nanogenerator for harvesting energy from reciprocating sliding motion

Qingshen Jing, Guang Zhu, Peng Bai, Yannan Xie, Jun Chen, Ray P.S. Han, Zhong Lin Wang

Research output: Journal PublicationArticlepeer-review

124 Citations (Scopus)


Reciprocating motion is a widely existing form of mechanical motion in natural environment. In this work we reported a case-encapsulated triboelectric nanogenerator (cTENG) based on sliding electrification to convert reciprocating motion into electric energy. Patterned with multiple sets of grating electrodes and lubricated with polytetrafluoroethylene (PTFE) nanoparticles, the cTENG exported an average effective output power of 12.2 mW over 140 kω external load at a sliding velocity of 1 m/s, in corresponding to a power density of 1.36 W/m2. The sliding motion can be induced by direct-applied forces as well as inertia forces, enabling the applicability of the cTENG in addressing ambient vibration motions that feature large amplitude and low frequency. The cTENG was demonstrated to effectively harvest energy from human body motions and wavy water surface, indicating promising prospects of the cTENG in applications such as portable and stand-alone self-powered electronics.

Original languageEnglish
Pages (from-to)3836-3842
Number of pages7
JournalACS Nano
Issue number4
Publication statusPublished - 22 Apr 2014
Externally publishedYes


  • casing
  • energy harvesting
  • reciprocating motion
  • self-powered
  • triboelectric nanogenerators

ASJC Scopus subject areas

  • Materials Science (all)
  • Engineering (all)
  • Physics and Astronomy (all)


Dive into the research topics of 'Case-encapsulated triboelectric nanogenerator for harvesting energy from reciprocating sliding motion'. Together they form a unique fingerprint.

Cite this