Understanding and modeling of triboelectric-electret nanogenerator

Ronan Hinchet, Ali Ghaffarinejad, Yingxian Lu, Javad Yavand Hasani, Sang Woo Kim, Philippe Basset

Research output: Contribution to journalArticlepeer-review


Recently, electrostatic kinetic energy harvesters regained strong attention through the development of new triboelectric generators for harvesting green and renewable energy. These devices use a triboelectric dielectric layer as electret for polarizing their capacitance and they behave similarly to electret generators. However, triboelectric-based electret nanogenerators (T-ENG) have specificities arising from the contact electrification phenomenon and leading to different performances. For better understanding T-ENG, we investigated their electrical modeling with lumped-elements and multiphysics simulation in light of last researches on electret generators. To take into account T-ENG specificities, we experimentally measured the amplitude of the triboelectric effect on perfluoroalkoxy alkane films. This approach allowed fully simulating T-ENG and the model was found in agreement with experimental results. Understanding and verifying the model is capital, but to go further toward the application of T-ENG, we reused two electret circuits to extract the T-ENG model parameters in view of facilitating their realistic modeling and practical development into application.

Original languageEnglish
Pages (from-to)401-409
Number of pages9
JournalNano Energy
Publication statusPublished - 2018 May

Bibliographical note

Funding Information:
This research was financially supported by the Center for Advanced Soft-Electronics as the Global Frontier Project ( 2013M3A6A5073177 ) and by the Technology Innovation Program( 10065730 , Flexible Power Module and System Development for Wearable Devices) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) .

Publisher Copyright:
© 2018 Elsevier Ltd

All Science Journal Classification (ASJC) codes

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


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