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A Flexible Lead‐Free BaTiO 3 /PDMS/C Composite Nanogenerator as a Piezoelectric Energy Harvester
Author(s) -
Luo Cuixian,
Hu Sihuan,
Xia Mengjie,
Li Pengwei,
Hu Jie,
Li Gang,
Jiang Huabei,
Zhang Wendong
Publication year - 2018
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201700756
Subject(s) - nanogenerator , materials science , composite number , piezoelectricity , energy harvesting , capacitor , voltage , nanoparticle , optoelectronics , diode , composite material , light emitting diode , energy storage , ferroelectricity , vibrator (electronic) , nanotechnology , electrical engineering , energy (signal processing) , power (physics) , dielectric , statistics , mathematics , physics , quantum mechanics , engineering
A novel approach to develop high‐performance flexible piezoelectric nanogenerators (PNGs) by using a lead‐free BaTiO 3 /polydimethyl siloxane (PDMS)/C composite thin film is proposed. The lead‐free BaTiO 3 nanoparticles (NPs) are successfully fabricated using a facile modified (nano‐scale precursors) solid‐phase method. The synthesized BaTiO 3 /PDMS/C composite PNG exhibits an output voltage of approximately 7.43 V with periodically beating from a vibrator, which is increased by 143 % compared to the PNGs without C doping. The maximum power is shown to reach up to approximately 7.92 μW with a load resistance of 2 MΩ when the C content of PNGs is 3.2 wt %.The generated electric energy can be effectively stored by the energy storage capacitor (47 μF) and is successfully used to light a commercial red light‐emitting diode (LED). These results show that the BaTiO 3 /PDMS/C composite is a promising candidate for large‐scale lead‐free piezoelectric nanogenerator applications.