Dipole-moment-induced effect on contact electrification for triboelectric nanogenerators

Peng Bai, Guang Zhu, Yu Sheng Zhou, Sihong Wang, Jusheng Ma, Gong Zhang, Zhong Lin Wang

Research output: Journal PublicationArticlepeer-review

176 Citations (Scopus)


Triboelectric nanogenerators (TENGs) have been demonstrated as an effective way to harvest mechanical energy to drive small electronics. The density of triboelectric charges generated on contact surfaces between two distinct materials is a critical factor for dictating the output power. We demonstrate an approach to effectively tune the triboelectric properties of materials by taking advantage of the dipole moment in polarized polyvinylidene fluoride (PVDF), leading to substantial enhancement of the output power density of the TENG. The output voltage ranged from 72 V to 215 V under a constant contact force of 50 N. This work not only provides a new method of enhancing output power of TENGs, but also offers an insight into charge transfer in contact electrification by investigating dipole-moment-induced effects on the electrical output of TENGs. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)990-997
Number of pages8
JournalNano Research
Issue number7
Publication statusPublished - Jul 2014
Externally publishedYes


  • dipole moment
  • modulation
  • triboelectric nanogenerator

ASJC Scopus subject areas

  • General Materials Science
  • Electrical and Electronic Engineering


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