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Nano Research 2016, 9(5): 1442-1451 https://doi.org/10.1007/s12274-016-1040-y
Research Article | Issue | Published: 29 September 2016

Multilayered electret films based triboelectric nanogenerator

Show Author's Information Tao Zhou1,  Limin Zhang1,  Fei Xue1,  Wei Tang1,  Chi Zhang1 ( ),  Zhong Lin Wang1,2( )
Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesNational Center for Nanoscience and TechnologyBeijing100083China
School of Material Science and EngineeringGeorgia Institute of TechnologyAtlantaGeorgia30332USA
Keywords:
energy harvesting, thin film, triboelectric nanogenerator, electret, corona charging
Cite this article:
Zhou T, Zhang L, Xue F, et al. Multilayered electret films based triboelectric nanogenerator. Nano Research, 2016, 9(5): 1442-1451. https://doi.org/10.1007/s12274-016-1040-y
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Abstract Full text Electronic supplementary material About this article

A triboelectric nanogenerator (TENG) is a simple and cost effective device that converts ambient mechanical energy into electricity based on the surface contact electrification of thin films. The limited surface charge density may affect the overall performance of the TENG. In this paper, a novel electret film based TENG (E-TENG) fabricated by corona charging is proposed that greatly enhances the effective surface charge density of the thin films as compared to those subjected to contact electrification. The short-circuit current, transferred electric charge density, and open-circuit voltage of the E-TENG have been investigated, using different corona charging voltages, pinpoint distances and times in order to explore the optimum experimental conditions. The short-circuit current, transferred electric charge density, and open-circuit voltage of the E-TENG are found to be about seven times larger than those of the ordinary polytetrafluoroethylene (PTFE) film based TENG. Based on corona charging, several multilayered E-TENGs have been fabricated, and the short-circuit current, transferred electric charge density, and open-circuit voltage of the E-TENGs with different number of layers are studied for achieving optimal performances. This work offers an effective approach for improving the effective surface charge density and thereby increasing the output capability of the TENG, which would greatly promote TENG applications in self-powered portable electronics and sensor networks.


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Electronic supplementary material
About this article

Multilayered electret films based triboelectric nanogenerator

Show Author's information Tao Zhou1, Limin Zhang1, Fei Xue1, Wei Tang1, Chi Zhang1 ( ), Zhong Lin Wang1,2( )
Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesNational Center for Nanoscience and TechnologyBeijing100083China
School of Material Science and EngineeringGeorgia Institute of TechnologyAtlantaGeorgia30332USA

Abstract

A triboelectric nanogenerator (TENG) is a simple and cost effective device that converts ambient mechanical energy into electricity based on the surface contact electrification of thin films. The limited surface charge density may affect the overall performance of the TENG. In this paper, a novel electret film based TENG (E-TENG) fabricated by corona charging is proposed that greatly enhances the effective surface charge density of the thin films as compared to those subjected to contact electrification. The short-circuit current, transferred electric charge density, and open-circuit voltage of the E-TENG have been investigated, using different corona charging voltages, pinpoint distances and times in order to explore the optimum experimental conditions. The short-circuit current, transferred electric charge density, and open-circuit voltage of the E-TENG are found to be about seven times larger than those of the ordinary polytetrafluoroethylene (PTFE) film based TENG. Based on corona charging, several multilayered E-TENGs have been fabricated, and the short-circuit current, transferred electric charge density, and open-circuit voltage of the E-TENGs with different number of layers are studied for achieving optimal performances. This work offers an effective approach for improving the effective surface charge density and thereby increasing the output capability of the TENG, which would greatly promote TENG applications in self-powered portable electronics and sensor networks.

Keywords: energy harvesting, thin film, triboelectric nanogenerator, electret, corona charging

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Publication history
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Acknowledgements

Publication history

Received: 12 October 2015
Revised: 02 February 2016
Accepted: 04 February 2016
Published: 29 September 2016
Issue date: May 2016

Copyright

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2016

Acknowledgements

Acknowledgements

The project is supported by National Natural Science Foundation of China (Nos. 51475099 and 51432005), Beijing Natural Science Foundation (No. 4163077), the "thousands talents" program for the pioneer researcher and his innovation team, China, and the Youth Innovation Promotion Association, CAS.

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