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Enhanced Functional and Structural Characteristics of Poly(vinylidene-trifluoroethylene) Copolymer Thin Films by Corona Poling
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nguyen, Chien Anh Lee, Pooi S. Lu, Xuehong Srinivasan, Madhavi Mhaisalkar, Subodh Gautam |
| Copyright Year | 2007 |
| Abstract | Electrical poling is of much interest for the enhancement of polarization properties of ferroelectric materials such as polyvinylidene-trifluoroethylenePVDF-TrFE in applications ranging from memory devices to piezoelectric actuation. Here, we report the changes in dielectric and optical properties correlated with structural modification of PVDF-TrFE thin films 1 m thickness subjected to corona poling at low voltages 6k V under various thermal conditions. Enhanced crystallinity of hot-poled samples was observed independent of thermal history and crystalline structure, indicating the absence of recrystallization during poling. Absorption measurements confirmed the ordered structure in hot-poled samples due to the permanent orientation of the dipoles and higher crystallinity, thus resulting in increased and long-retained capacitance of the ferroelectric PVDFTrFE capacitor device from high frequency C-V characterization. X-ray photoelectron spectroscopy further confirmed the shifting of C and F core orbitals to higher binding energy is related to formation of more ferroelectric phases by corona poling. |
| File Format | PDF HTM / HTML |
| DOI | 10.1149/1.2769269 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/18843/31.enhancedfunctionalandstructuralcharacteristicsofpoly(vinylidene-trifluoroethylene)copolymerthinfilmsbycoronapoling.pdf?sequence=1 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/18843/31.%20Enhanced%20Functional%20and%20structural%20characteristics%20of%20poly(vinylidene-trifluoroethylene)%20copolymer%20thin%20films%20by%20corona%20poling.pdf?isAllowed=y&sequence=1 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/18843/31.%20Enhanced%20Functional%20and%20structural%20characteristics%20of%20poly(vinylidene-trifluoroethylene)%20copolymer%20thin%20films%20by%20corona%20poling.pdf;jsessionid=882861D7C3F77316A061A44AC0B21A5A?sequence=1 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/18843/31.%20Enhanced%20Functional%20and%20structural%20characteristics%20of%20poly(vinylidene-trifluoroethylene)%20copolymer%20thin%20films%20by%20corona%20poling.pdf;jsessionid=D6D2FE0BE44D6652506BBD6496D7BE02?sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.1149/1.2769269 |
| Volume Number | 154 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
