In-situ polarization enhanced piezoelectric property of polyvinylidene fluoride-trifluoroethylene films | Zendy

Mengli You | Zendy; Xiaoran Hu | Zendy; Yong Xiang | Zendy

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In-situ polarization enhanced piezoelectric property of polyvinylidene fluoride-trifluoroethylene films

Author(s) -

Mengli You,

Xiaoran Hu,

Yong Xiang

Publication year - 2021

Publication title -

iop conference series earth and environmental science

Language(s) - English

Resource type - Journals

eISSN - 1755-1307

pISSN - 1755-1315

DOI - 10.1088/1755-1315/770/1/012071

Subject(s) - polyvinylidene fluoride , poling , piezoelectricity , materials science , polarization (electrochemistry) , piezoelectric coefficient , voltage , composite material , pmut , optoelectronics , ferroelectricity , electrical engineering , polymer , dielectric , engineering , chemistry

The polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) piezoelectric film was obtained by the in-situ polarization, which 10x increased the piezoelectric coefficient d 33 . By using our polarizing system, the PVDF-TrFE film can be polarized in 5 minutes at room temperature. Compared with the traditional polarization method, the in-situ polarization was performed with low poling voltage, short poling time, and can ensure the obtained PVDF-TrFE film with enhanced piezoelectric performances and uniform distribution among large area. The results provide a new method for PVDF-TrFE films with large area and high piezoelectric coefficient, which improves the piezoelectric performance and broadens the application in energy harvesting.

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