Open AccessAchieving Ultrahigh Output Energy Density of Triboelectric Nanogenerators in High‐Pressure Gas Environment
Author(s) -
Fu Jingjing,
Xu Guoqiang,
Li Changheng,
Xia Xin,
Guan Dong,
Li Jian,
Huang Zhengyong,
Zi Yunlong
Publication year - 2020
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202001757
Subject(s) - triboelectric effect , nanogenerator , materials science , mechanical energy , energy (signal processing) , electric potential energy , voltage , optoelectronics , engineering physics , electrical engineering , nanotechnology , power (physics) , composite material , engineering , physics , quantum mechanics
Through years of development, the triboelectric nanogenerator (TENG) has been demonstrated as a burgeoning efficient energy harvester. Plenty of efforts have been devoted to further improving the electric output performance through material/surface optimization, ion implantation or the external electric circuit. However, all these methods cannot break through the fundamental limitation brought by the inevitable electrical breakdown effect, and thus the output energy density is restricted. Here, a method for enhancing the threshold output energy density of TENGs is proposed by suppressing the breakdown effects in the high‐pressure gas environment. With that, the output energy density of the contact‐separation mode TENG can be increased by over 25 times in 10 atm than that in the atmosphere, and that of the freestanding sliding TENG can also achieve over 5 times increase in 6 atm. This research demonstrates the excellent suppression effect of the electric breakdown brought by the high‐pressure gas environment, which may provide a practical and effective technological route to promote the output performance of TENGs.