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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.1
- 수록면
- 881 - 884 (4page)
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In this study, polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) in the composition from 51/49, was deposited on platinum for a metal-ferroelectric-metal structure. From XRD patterns, the 70 nm- and 140 nm-thick PVDF-TrFE films showed the intensity peak of near 20˚ connected to a ferroelectric phase. Moreover, the thicker film indicated the higher intensity than thinner one. The difference of the remanent polarization (2Pr) at 0 V is decreased gradually from 10.19 to 5.7 μC/㎠ as the thickness decrease from 140 to 70 nm. However, when the thickness decreased to 50 nm, the 2Pr rapidly drop to 1.6 μC/㎠ so the minimum critical thickness might be at least 70 nm for device. Both different thickness films, 70 and 140 nm, indicated that the characteristic of current density-voltage was measured for 10-6 ∼ 10-7 A/㎠ below 15 V and the thicker film maintained relatively lower current density than thinner one. From these results, we can expect that the electrical properties for the devices particularly ferroelectric thin film transistor using PVDF-TrFE copolymer were able to be on the trade-off relationship between the remanent polarization with the bias voltage and the leakage current.
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참고문헌 (11)
참고문헌 신청
A.C. Nguyen / 2006 / Ferroelectric copolymer P(VDF-TrFE) as gate dielectric in organic field effect transistors for memory application devices / Emerging Technologies- Nanoelectron
H. Su / 2004 / Density functional theory and molecular dynamics studies of the energetics and kinetics of electroactive polymers : PVDF and P(VDF-TrFE)" / Phys. Rev. B 70 : 0
J.H. Kim / 2007 / Electrical characteristic of metal- ferroelectric-semiconductor structures based on poly(Vinylidene fluoride)" / Jpn. J. of Appl. Phys 46 : 6976 ~
K. Kimura / 1986 / Polarization behavior in vinylidene fluoride-trifluoroethylene copolymer thin films / Jpn J Appl Phys 25 : 383 ~
N. Koch / 2007 / Organic electronic devices and their functional interfaces / Chemphyschem 8 : 1438 ~
H. Su / 2004 / Density functional theory and molecular dynamics studies of the energetics and kinetics of electroactive polymers : PVDF and P(VDF-TrFE)" / Phys. Rev. B 70 : 0
J.H. Kim / 2007 / Electrical characteristic of metal- ferroelectric-semiconductor structures based on poly(Vinylidene fluoride)" / Jpn. J. of Appl. Phys 46 : 6976 ~
K. Kimura / 1986 / Polarization behavior in vinylidene fluoride-trifluoroethylene copolymer thin films / Jpn J Appl Phys 25 : 383 ~
N. Koch / 2007 / Organic electronic devices and their functional interfaces / Chemphyschem 8 : 1438 ~
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