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- Kang, Seok Ju
- Smart Materials for Energy Lab.
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Recovery of remanent polarization of poly(vinylidene fluoride-co-trifluoroethylene) thin film after high temperature annealing using topographically nanostructured aluminium bottom electrode
- Author(s)
- Park, Youn Jung, Kang, Seok Ju, Park, Cheolmin, Woo, Euntaek, Shin, Kyusoon, Kim, Kap Jin
- Issued Date
- 2007-05
- Citation
- APPLIED PHYSICS LETTERS, v.90, no.22
- Abstract
- Facile recovery of ferroelectric polarization after high temperature annealing was observed in a poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) thin film on an etched Al bottom electrode which has a topographically nanostructured surface with hexagonal registry of the recessed hemispherical bowls of approximately 100 nm diameter. Fairly large remanent polarization of 10 mu C/cm(2) was obtained after annealing up to 185 degrees C with the etched Al electrode, while the polarization rapidly dropped near the melting temperature of P(VDF-TrFE) (similar to 150 degrees C) with a flat Al electrode. The topographic electrode is found to facilitate the reorganization of P(VDF-TrFE) crystal under electric field. (C) 2007 American Institute of Physics
- Publisher
- AMER INST PHYSICS
- ISSN
- 0003-6951
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