Abstract
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.
Highlights
With the massive development of electronic technology, especially in smart and wearable electronics, implantable electronic devices, patient monitoring, distributed wireless sensor networks, environmental and structure monitoring, and national security, etc., harvesting energy from the human body and the ambient environment is a suitable solution for the rapid and constant increase of the world’s energy demand
Electronic pianos are widely used in modern music performances, people’s learning and entertainment due to their wide range of sound, abundant harmony, multi-tone imitation, free volume regulation, rhythm accompaniment similar to percussion sound, and additional effects such as reverberation, echo, delay, vibrators and modulators, etc. [6,7]
A piece of PI substrate was cut in accordance to the same size of the fluorinated ethylene propylene (FEP), and a 60 nm copper electrode was stuck on its upper side
Summary
With the massive development of electronic technology, especially in smart and wearable electronics, implantable electronic devices, patient monitoring, distributed wireless sensor networks, environmental and structure monitoring, and national security, etc., harvesting energy from the human body and the ambient environment is a suitable solution for the rapid and constant increase of the world’s energy demand. There is ubiquitous kinetic energy in various motions and vibrations: for example, human motion, walking, vibration, mechanical triggering, rotating tires, wind, flowing water, and more. Harvesting mechanical energy from the living environment to establish a sustainable and maintenance-free electronic system has become a research hotspot in the last two decades [1,2,3]. Electronic pianos are widely used in modern music performances, people’s learning and entertainment due to their wide range of sound, abundant harmony, multi-tone imitation, free volume regulation, rhythm accompaniment similar to percussion sound, and additional effects such as reverberation, echo, delay, vibrators and modulators, etc. [6,7].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
