Enhancing the Triboelectric Nanogenerator Output by Micro Plasma Generation in a Micro-Cracked Surface Structure

Applied Sciences

Yong-Seok Lee¹  Hanchul Cho²  Jinhyoung Park³ 

[1] Department of Mechanical Engineering, School of Industrial and Mechanical Engineering, The University of Suwon, 17, Wauan-gil, Bongdam-eup, Hwaseong-si 18323, Korea;Precision Mechanical Process and Control R&D Group, Korea Institute of Industrial Technology (KITECH), 42-7, Baegyang-daero 804 beon-gil, Sasang-gu, Busan 46938, Korea;School of Mechatronics Engineering, Korea University of Technology & Education, 600, Chungjeol-ro, Byeongcheon-myeon, Dongnam-gu, Cheonan-si 31253, Korea;

关键词: energy harvesting;    triboelectric nanogenerators;    micro plasma;   

DOI  :  10.3390/app11094262

来源: DOAJ

【 摘 要 】

Energy harvesting, especially for powering low-power internet-of-things (IoT) devices, is gaining attention in recent years. Triboelectric nanogenerators have been studied to improve the output by applying a structure that can concentrate electrons on the surface of the generator materials. For enhancing the triboelectrification output, we herein focused on the power output line. A method for increasing the amount of electrons on the power lead by potential difference and their acceleration was studied. A rod was shaken by external vibrations; the accumulated charges were discharged in a manner similar to that of a lightning rod. Micro plasma was generated when the rod made contact with the mating micro-cracked surface innumerable times. The micro-cracked surface was fabricated with a diamond tip moving horizontally to the surface. As the resistance of the micro plasma was close to zero, the amount of electron movement was instantaneously accelerated. This type of triboelectric generator can be fabricated in the form of an electric box. By using this triboelectric power amplifier, voltage can be amplified 2 to 3 times, and the current can be amplified 10 to 15 times; thus, enhanced energy harvesting efficiency is attained.

【 授权许可】

Unknown