Abstract
The ferroelectric switching time of copolymer of vinylidene fluoride has been shown to depend upon the strength of the applied electric field according to an exponential law. Conventional switching measurements yield 30 μ s at 120MV/m and 100 μ s at 100MV/m. Here we show that it is significantly affected by history of the previous polarization process. If the electric field is applied in a +0-0 wave form of frequency larger IkHz, full polarization reversal can be accomplished in shorter than 1 μ s at 100MV/m. The results indicate that active nucleation sites remain unvarnished during off period and accelerate the polarization reversal.
| Original language | English |
|---|---|
| Pages | 1424 |
| Number of pages | 1 |
| Publication status | Published - 2005 |
| Event | 54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 25 May 2005 → 27 May 2005 |
Conference
| Conference | 54th SPSJ Annual Meeting 2005 |
|---|---|
| Country/Territory | Japan |
| City | Yokohama |
| Period | 25/05/05 → 27/05/05 |
Keywords
- Acceleration
- Frequency
- Polarization reversal
- Pulse
- Thin film
- TrFE copolymer
- VDF