Materials Reports 2021, Vol. 35 Issue (Z1): 59-61 |
INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Theoretical Study on Equilibrium Piezoelectric Potential of BaTiO3 Thin Film Nanogenerator |
YAO Haiyan, FAN Wenliang
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Ordos Institute of Technology, Ordos 017000, China |
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Abstract Using the two-parameter model of the thin film-substrate system, the bending of the single-layer barium titanate (BaTiO3) nano-film system under axial stress was studied. The polarization intensity, polarization charge and piezoelectric potential distribution of BaTiO3 nano-film were analyzed and discussed. According to the mechanical balance method, the bending piezoelectric potential, the bending curvature radius and the strain of the BaTiO3 thin film were solved. The results showed that, the theoretical model and results of this paper are in good agreement with the experimental data and finite element simulation reported by Park et al, providing a simple theoretical model and basis for the mechanism of piezoelectric nanofilm generators.
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Published: 16 July 2021
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Fund:Natural Science Foundation of Inner Mongolia Autonomous Region (2019MS01022), the Scientific Research Key Program for Higher Schools of Inner Mongolia (NJZZ21057), and the Scientific Research Program of Ordos Institute of Technology (KYYB2018010, KYZD2017001). |
About author:: Haiyan Yao, obtained her physics doctor's degree from the Inner Mongolia University, professor, and worked in the Ordos Institute of Technology till now. She contributed to researching the theory of surface elasticity and the mechanical and electrical properties of micro and nanostructures. She has applied 8 national and provincial scientific projects, and participated in 6 national and provincial scientific projects. She has published 17 journal papers, including 12 of SCI, 1 of EI, and 3 of Chinese papers. She guided 4 projects of undergraduate innovation training program, including one at the autonomous region level. Besides, she is awarded 1 provincial excellent academic paper with third prize, Inner Mongolia Auto-nomous Region Teaching New Talent Award, Ordos Grassland Talent title.Wenliang Fan, graduated from Inner Mongolia University with a doctor's degree, is now working in the Ordos Institute of Technology. He is mainly engaged in the scientific research of thin film solar cells, with the professional title of associate professor, and undertakes the teaching work of college physics and college physics experiment courses for engineering students of Ordos Institute of Technology. In recent five years, he has published ten academic papers, including seven SCI papers, an EI paper, and two teaching reform papers. He presided over 2 provincial projects and participated in 6 national and provincial projects. |
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