| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Highly oriented epitaxial growth of Poly(vinylidene fluoride-co-trifluoroethylene) Thin Film on Oriented PTFE substrates |
| 초록 |
Oriented poly(vinylidene fluoride-co-trifluoroethylene) thin films have been obtained onto oriented poly tetrafluoroethylene(PTFE) substrates. Frictionally rubbing induced oriented PTFE substrates resulted in epitaxially growth of PVDF-TrFE films by spin coating method. The existence of micron size topographic ledges and molecular structure of PTFE chains play a key role in the orientation of ferroelectric thin films, confirmed by TEM and GIXD. Furthermore, the orientation shift of PVDF-TrFE thin film after annealing above melting temperature (Tm) does not occur in oriented ferroelectric thin films deposited on oriented PTFE substrates, which means PVDF-TrFE orientation is maintained on the substrates even after melt and recrystallization. In order to see the effect of highly oriented PVDF-TrFE thin film on its ferroelectric properties, we measured polarization in polymer capacitor and also tested thermal stability. |
| 저자 |
박연정1, 강석주1, Bernard Lotz2, Annette Thierry2, 박철민1
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| 소속 |
1연세대, 2Institut Charles Sadron |
| 키워드 |
ferroelectric polarization; oriented PTFE substrates; epitaxy; crystal orientation
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| E-Mail |
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