Recovery of remanent polarization of poly(vinylidene fluoride-co- trifluoroethylene) thin film after high temperature annealing using topographically nanostructured aluminium bottom electrode

Youn Jung Park, Seok Ju Kang, Cheolmin Park, Euntaek Woo, Kyusoon Shin, Kap Jin Kim

Research output: Contribution to journalArticle

22 Citations (Scopus)

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 μC cm2 was obtained after annealing up to 185 °C with the etched Al electrode, while the polarization rapidly dropped near the melting temperature of P(VDF-TrFE) (∼150 °C) with a flat Al electrode. The topographic electrode is found to facilitate the reorganization of P(VDF-TrFE) crystal under electric field.

Original languageEnglish
Article number222903
JournalApplied Physics Letters
Volume90
Issue number22
DOIs
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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