EFFECTS OF ELECTRIC-FIELD ON THE MOLECULAR-ORIENTATION IN EVAPORATED FERROELECTRIC VINYLIDENE FLUORIDE AND TRIFLUOROETHYLENE COPOLYMER FILMS

被引：11

作者：

YOSHIDA, Y

HORIUCHI, T

MATSUSHIGE, K

机构：

[1] Department of Applied Science, Kyushu University, Higashi-ku, Fukuoka, 812, Hakozaki

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 3A期

关键词：

P(VDF/TRFE); ULTRATHIN FILM; MOLECULAR ORIENTATION; EVAPORATION; ELECTRIC FIELD; X-RAY DIFFRACTION;

D O I：

10.1143/JJAP.32.1248

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An electric field was applied during the evaporation process to obtain ferroelectric polymeric ultrathin films with uniaxial dipole orientation. The crystal structure and molecular orientation in the evaporated (VDF/TrFE) copolymer films were examined with a recently developed total reflection X-ray diffractometry, revealing that polar Form I crystals with the dipole moment oriented normal to the substrate can be formed by evaporating the samples under a high electric field (6 MV/m). Moreover, we evaluated the ferroelectric-paraelectric phase transition behavior of the evaporated films from a structural viewpoint.

引用

收藏

页码：1248 / 1252

页数：5

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