Crystallization and ferroelectric properties of the amorphous precursor films of Poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) blended with Pb(Zr,Ti)O<sub>3</sub>
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- LEE Wan-Gyu
- Department of Nano CMOS, National NanoFab Center
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- PARK Byung Eun
- School of Electrical and Computer Engineering, University of Seoul
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- PARK Kyung Eun
- School of Electrical and Computer Engineering, University of Seoul
Bibliographic Information
- Other Title
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- Crystallization and ferroelectric properties of the amorphous precursor films of Poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) blended with Pb(Zr,Ti)O₃
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Abstract
Precursor films based on poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) and P(VDF-TrFE) blended with Pb(Zr,Ti)O3 (PZT) were spin-coated on Si substrates and subsequently annealed at 150, 170, or 190°C. X-ray diffraction studies showed that the crystallization from the amorphous precursor films to the γ phase starts at higher annealing temperatures without involving the formation of other polymorphs when the P(VDF-TrFE) is blended with PZT, and the PZT content increases, resulting in an amorphous phase and/or crystalline γ phase. Nevertheless, a larger memory window width and much higher accumulation capacitance are induced by the blended PZT within the low operating voltage ranges from −0.5 to 2.0 V and from −2.0 to 6.0 V for 76.7 and 96.7 wt % PZT blending, respectively. Furthermore, these improvements in the hysteretic characteristics in the capacitance–voltage measurements are also directly correlated with the degree of P(VDF-TrFE) crystallization and the presence of PZT. This approach enables viable routes toward the commercialization of nonvolatile ferroelectric memory devices and their market extension to potential applications as functional devices.
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 120 (1402), 224-228, 2012
The Ceramic Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680263874944
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- NII Article ID
- 130004480064
- 40019281604
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- NII Book ID
- AA12229489
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- ISSN
- 13486535
- 18820743
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- NDL BIB ID
- 023675474
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed