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Effect of Poly(vinylphenol) on the Ferroelectric Performance of Poly(vinylidene fluoride-trifluoroethylene)
被引:7
|作者:
Mi, Ce
[1
]
Gao, Nan
[1
]
Li, Huihui
[1
]
Liu, Junteng
[1
]
Sun, Xiaoli
[1
]
Yan, Shouke
[1
,2
]
机构:
[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
[2] Qingdao Univ Sci & Technol, Shandong Prov Key Lab Rubber Plast, Minist Educ, Key Lab Rubber Plast, Qingdao 266042, Shandong, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
poly(vinylidene fluoride-trifluoroethylene);
poly(vinylphenol);
blend;
ferroelectric;
nonvolatile;
FLUORIDE-TRIFLUOROETHYLENE COPOLYMERS;
FIELD-EFFECT TRANSISTORS;
THIN-FILMS;
PHASE-TRANSITION;
SWITCHING BEHAVIOR;
MEMORY;
PVDF;
ORIENTATION;
CRYSTALS;
MORPHOLOGY;
D O I:
10.1021/acsapm.9b00060
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Structures and ferroelectric properties of poly(vinylidene fluoride-trifluoroethylene)/poly(vinylphenol), i.e., P-(VDF-TrFE)/PVPh, blends are studied. It is found that a small amount of PVPh segregates as small nanodomains distributed homogeneously on the surface of a P(VDF-TrFE) film. The incorporation of PVPh depresses the Curie transition temperature and remnant polarization of P(VDF-TrFE) slightly. It enhances the coercive electric field (E-c) slightly but improves the thermal stability of ferroelectric properties by nearly 30 degrees C with 5 wt % PVPh. In addition, by maintaining the relatively high permittivity, the addition of PVPh effectively lowers the dielectric losses. This provides an efficient and simple way to fabricate P(VDF-TrFE)-based nonvolatile flexible memories with low leakage, high thermal stability, and high breakdown strength.
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页码:1971 / 1978
页数:15
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