Open AccessTextile-based freestanding triboelectric-layer nanogenerator with alternate positive and negative grating structure
Author(s) -
Watcharapong Paosangthong,
Russel Torah,
Steve Beeby
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1407/1/012124
Subject(s) - triboelectric effect , nanogenerator , materials science , grating , layer (electronics) , voltage , optoelectronics , composite material , electrical engineering , engineering , piezoelectricity
This paper reports a novel design of textile-based triboelectric nanogenerator (TENG) with alternate grated strips of positive and negative triboelectric material operating in freestanding triboelectric-layer mode (pnG-TENG). Whereas most grating-structured TENGs operating in a freestanding triboelectric-layer mode comprise gratings of one type of triboelectric material separated by air gaps, this design presents a replacement of the air gaps by another triboelectric material with the opposite polarity to the existing triboelectric material. The pnG-TENG with 10 gratings of PTFE and nylon fabric delivers an open-circuit voltage of 250 V, a short-circuit current of 5.94 µA and a maximum peak power of 600 µW at a load resistance of ueoµΩ and a mechanical oscillation of 2 Hz. This corresponds to a maximum power density of 186 mW/m 2 , which is 1.73 and 2.20 times greater than the power generated by the TENG with single triboelectric material and the TENG with no grating, respectively.