Boosted output performance of triboelectric nanogenerator via electric double layer effect

Title
Boosted output performance of triboelectric nanogenerator via electric double layer effect
Authors
강종윤천진성예병욱이재원최덕현김상우Zhong Lin Wang백정민
Issue Date
2016-10
Publisher
Nature Communications
Citation
VOL 7
Abstract
For existing triboelectric nanogenerators ( TENGs), it is important to explore unique methods to further enhance the output power under realistic environments to speed up their commercialization. We report here a practical TENG composed of three layers, in which the key layer, an electric double layer, is inserted between a top layer, made of Al/polydimethylsiloxane, and a bottom layer, made of Al. The efficient charge separation in the middle layer, based on Volta's electrophorus, results from sequential contact configuration of the TENG and direct electrical connection of the middle layer to the earth. A sustainable and enhanced output performance of 1.22mA and 46.8 mW cm(-2) under low frequency of 3 Hz is produced, giving over 16-fold enhancement in output power and corresponding to energy conversion efficiency of 22.4%. Finally, a portable power-supplying system, which provides enough d.c. power for charging a smart watch or phone battery, is also successfully developed.
URI
http://pubs.kist.re.kr/handle/201004/65064
ISSN
2041-1723
Appears in Collections:
KIST Publication > Article
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