Electret Nanogenerators for Self-Powered, Flexible Electronic Pianos

Sustainability

Wenqing Chen¹  Yunwang Ge¹  Bo Wang¹  Chao Guo¹  Yongjun Xiao²  Qingdong Zeng²  Zenggang Xiong²  Jun Wan³ 

[1] Luoyang Institute of Science and Technology, School of Electrical Engineering and Automation, Luoyang 471023, China;School of Physics and Electronic-Information Engineering, Hubei Engineering University, Xiaogan 432000, China;State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China;

关键词: electret;    nanogenerator;    self-powered;    flexible;    electronic piano;   

DOI  :  10.3390/su13084142

来源: DOAJ

【 摘 要 】

Traditional electronic pianos mostly adopt a gantry type and a large number of rigid keys, and most keyboard sensors of the electronic piano require additional power supply during playing, which poses certain challenges for portable electronic products. Here, we demonstrated a fluorinated ethylene propylene (FEP)-based electret nanogenerator (ENG), and the output electrical performances of the ENG under different external pressures and frequencies were systematically characterized. At a fixed frequency of 4 Hz and force of 4 N with a matched load resistance of 200 MΩ, an output power density of 20.6 mW/cm² could be achieved. Though the implementation of a signal processing circuit, ENG-based, self-powered pressure sensors have been demonstrated for self-powered, flexible electronic pianos. This work provides a new strategy for electret nanogenerators for self-powered sensor networks and portable electronics.

【 授权许可】

Unknown