Boosted output performance of triboelectric nanogenerator via electric double layer effect.

Citation data:

Nature communications, ISSN: 2041-1723, Vol: 7, Page: 12985

Publication Year:
2016
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Captures 23
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Citations 10
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Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/20625
PMID:
27703165
DOI:
10.1038/ncomms12985
PMCID:
PMC5059471
Author(s):
Chun, Jinsung, Ye, Byeong Uk, Lee, Jae Won, Choi, Dukhyun, Kang, Chong-Yun, Kim, Sang-Woo, Wang, Zhong Lin, Baik, Jeong Min
Publisher(s):
Springer Nature, NATURE PUBLISHING GROUP
Tags:
Chemistry, Biochemistry, Genetics and Molecular Biology, Physics and Astronomy
article description
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 1.22 mA and 46.8 mW cm 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.