PREPARATION AND PIEZOELECTRICITY OF BETA FORM POLY(VINYLIDENE FLUORIDE) THIN-FILM BY VAPOR-DEPOSITION

被引：37

作者：

TAKENO, A ^{[1
]}

OKUI, N ^{[1
]}

KITOH, T ^{[1
]}

MURAOKA, M ^{[1
]}

UMEMOTO, S ^{[1
]}

SAKAI, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT ORGAN & POLYMER MAT,OOKAYAMA,MEGURO KU,TOKYO 152,JAPAN

来源：

THIN SOLID FILMS | 1991年 / 202卷 / 02期

关键词：

D O I：

10.1016/0040-6090(91)90090-K

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin films of poly(vinylidene fluoride) (PVdF) and VdF oligomer were prepared by vapour deposition. PVdF was thermally decomposed in a vacuum system, when the polymer was heated above 300-degrees-C in the crucible. Low molecular weight fractions in PVdF were evaporated at temperatures below 300-degrees-C without the thermal decomposition. The thin films exhibited the beta-form with molecular orientation parallel to the substrate when PVdF and VdF oligomer were deposited onto the substrate at temperatures below -150-degrees-C. Piezoelectricity was observed for the as-deposited film without poling treatment. The piezoelectric constant d33 of the film prepared from VdF oligomer was about 15 times larger than of that prepared from PVdF.

引用

页码：205 / 211

页数：7

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