Title :
A spontaneous polarization electret for electrostatic vibration energy harvesting
Author :
Asanuma, Hitoshi ; Oguchi, H. ; Hara, Masaki ; Kuwano, Hiroki
Author_Institution :
Tohoku Univ., Sendai, Japan
Abstract :
We have proposed a Spontaneous Polarization Electret (SPE) consisting of ferroelectric to increase output power of electrostatic vibration energy harvesters. Lead zirconate titanate (PZT) ceramics were employed to develop the SPEs. For comparison, a conventional electret was also prepared by implanting charges into a 10-μm thick CYTOP® polymer by using point-to-grid corona discharging method. The maximum output powers obtained from a vertical-type capacitive energy harvester are 8.6 μW for the SPE and 5.1 μW for the CYTOP® polymer electret, at total load resistance 40.5 MΩ. The SPE demonstrated the higher potential compared to the conventional polymer electret.
Keywords :
corona; electrets; energy harvesting; piezoceramics; piezoelectric transducers; polymers; vibrations; CYTOP polymer; PZT; electrostatic vibration energy harvesting; piezoelectric ceramics; point-to-grid corona discharging method; polymer electret; power 5.1 muW; power 8.6 muW; resistance 40.5 Mohm; size 10 mum; spontaneous polarization electret; vertical type capacitive energy harvester; Ceramics; Electrets; Electrodes; Electrostatics; Polymers; Power generation; Vibrations; Electret; Electrostatic; Energy Harvester; Ferroelectric; PZT; Spontaneous Polarization;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6627023
