折叠结构的PVDF/BTO复合薄膜压电纳米发电机的制备及性能研究

doi:10.11896/cldb.22080132

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Abstract To improve the piezoelectric output performance of polyvinylidene fluoride (PVDF), barium titanate (BTO) nanoparticles were introduced into PVDF solution, and PVDF/BTO composite piezoelectric films were prepared using the flow-delay method, and the composite films were treated by high-temperature stretching and electrodeposition processes. The morphology and piezoelectric properties of the composite films were characterized using scanning electron microscope, X-ray diffractometer, Fourier transform infrared spectrometer, differential scanning calorimeter and quasi-static piezoelectric constant tester to investigate the effect of BTO content on the PVDF/BTO composite films and to study the mechanism of BTO-induced rearrangement of PVDF chain dipoles to form β-crystalline form. The results show that when the BTO content is 10wt%, the PVDF/BTO composite film has the most β-crystalline type in the crystal structure and the strongest piezoelectric properties. Finally, the folded structures with different layers were designed and assembled into piezoelectric nanogenerators (PENG), and it was found that the higher the number of folded layers, the higher the maximum voltage output of PENG.

Key words： polyvinylidene fluoride barium titanate piezoelectric nanogenerator piezoelectric property

Published: 25 March 2024 Online: 2024-04-07

CLC number:

TM22+1

Fund:Open Cooperation Innovation Fund Project of Xi'an Institute of Modern Chemistry(SYJJ200304).

Corresponding Authors: ^*zhangcs@sust.edu.cn

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	ZHANG Changsong
	WANG Xiangyang
	WEI Lizhu
	WANG Rupeng

Cite this article:

ZHANG Changsong,WANG Xiangyang,WEI Lizhu, et al. Preparation and Performance Study of PVDF/BTO Composite Film Piezoelectric Nanogenerators with Folded Structure[J]. Materials Reports, 2024, 38(6): 22080132-6.

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https://www.mater-rep.com/EN/10.11896/cldb.22080132 OR https://www.mater-rep.com/EN/Y2024/V38/I6/22080132

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