Abstract
The time domain measurements of ferroelectric polarization reversal were conducted for spin-coated ultrathin vinylidene fluoride/trifluoroethylene copolymer films deposited with an Au electrode. It was found that full polarization reversal occurs in 50-330nm-thick films with switching time independent of the film thickness. We conclude that the thinning-induced increase in switching time reported by many researchers is not a general feature of this copolymer but is specific to an Al-electrode-deposited sample. The intrinsic switching characteristics revealed here include the broadening of the switching time distribution with thinning, which is attributed to the nonuniform electric field caused by surface roughness.
| Original language | English |
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| Pages | 4488-4489 |
| Number of pages | 2 |
| Publication status | Published - 2005 |
| Event | 54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 20 Sept 2005 → 22 Sept 2005 |
Conference
| Conference | 54th SPSJ Symposium on Macromolecules |
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| Country/Territory | Japan |
| City | Yamagata |
| Period | 20/09/05 → 22/09/05 |
Keywords
- Electrode
- Ferroelectric polymer
- Switching characteristics
- Thin film
- Vinylidene fluoride