Open AccessA coplanar‐electrode direct‐current triboelectric nanogenerator with facile fabrication and stable output
Author(s) -
Xu Guoqiang,
Guan Dong,
Yin Xing,
Fu Jingjing,
Wang Jie,
Zi Yunlong
Publication year - 2020
Publication title -
ecomat
Language(s) - English
Resource type - Journals
ISSN - 2567-3173
DOI - 10.1002/eom2.12037
Subject(s) - triboelectric effect , nanogenerator , direct current , electrode , reciprocating motion , electrical engineering , power density , materials science , energy harvesting , power (physics) , optoelectronics , current density , constant current , computer science , voltage , engineering , physics , bearing (navigation) , quantum mechanics , artificial intelligence , composite material
Recently, the direct‐current (DC) TENG based on triboelectrification and discharge has been reported, which can not only generate a DC power, but also provide a higher charge density compared to traditional TENG. Here, we report a novel coplanar‐electrode DC TENG (CDC‐TENG) design which can be easily fabricated by two electrodes, and then a theoretical model is built to illustrate its principle and optimize its output performance. Both theoretical and experimental studies show that the designed device can enhance the energy output, and then the output power is optimized. Furthermore, we develop a three‐electrode CDC‐TENG to output DC during the reciprocating motion. We apply this CDC‐TENG design for rotational energy harvesting and produce a stable constant DC output. This represents an important progress to effectively store the energy harvested by the CDC‐TENG with the aim to drive portable/wearable/implantable electronics with the stable output.