Affiliation:
1. Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology School of Materials Science and Engineering, Nanjing Institute of Technology Nanjing Jiangsu People's Republic of China
2. Department of Astronautical Science and Mechanics Harbin Institute of Technology Harbin China
3. Department of Control Science and Engineering School of Astronautics, Harbin Institute of Technology Harbin China
Abstract
AbstractIn this article, a piezoelectric thin film was obtained by mixing polyvinylidene fluoride‐trifluoroethylene (P(VDF‐TrFE)) and barium titanate (BTO) via a solvent vaporization process. All the morphologies, crystal phases, thermal and electrical tests, as well as potential simulations by COMSOL, were studied to analyze sample performances. It has been demonstrated that BTO has a positive effect on increasing the piezoelectric functional phase‐β phase within P(VDF‐TrFE). Furthermore, the optimal ratio of BTO to P(VDF‐TrFE) was determined to be 10 wt%. BTO nanoparticles were evenly distributed in the P(VDF‐TrFE) substrate, forming a more directional structure. Based on the most suitable material composition, piezoelectric, and triboelectric nanogenerators were constructed to harvest mechanical energy from human motions. Moreover, the factors influencing the electrical outputs of nanogenerators were systematically studied, such as the force values and frequencies of excitation, as well as the piezoelectric layer materials. The applications of lighting LEDs highlighted the practical use in everyday life. Finally, the comparison between simulations, theoretical analysis, and experimental results demonstrated the effect of BTO in enhancing the overall material properties. This work expands the application potential of piezoelectric nanocomposites in energy collection and storage by designing and optimizing ceramic‐doped piezoelectric polymer composites.
Funder
National Natural Science Foundation of China
Subject
Materials Chemistry,Polymers and Plastics,General Chemistry,Materials Chemistry,Polymers and Plastics,General Chemistry
Cited by
2 articles.
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