2ND-HARMONIC GENERATION IN POLY(VINYLIDENE FLUORIDE) FILMS PREPARED BY VAPOR-DEPOSITION UNDER AN ELECTRIC-FIELD

被引：20

作者：

KUBONO, A

KITOH, T

KAJIKAWA, K

UMEMOTO, S

TAKEZOE, H

FUKUDA, A

OKUI, N

机构：

[1] Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 8B期

关键词：

POLY(VINYLIDENE FLUORIDE); PVDF; VAPOR DEPOSITION; MOLECULAR ORIENTATION; 2ND-HARMONIC GENERATION; THIN FILM; NONLINEAR OPTICS;

D O I：

10.1143/JJAP.31.L1195

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Second-harmonic generation (SHG) revealed the dipole orientation of poly(vinylidene fluoride) (PVDF) thin films prepared by vapor deposition in the presence of an electric field along the substrate surface. The dipole alignment was confirmed for the substrate temperatures between -130-degrees-C and 100-degrees-C under an electric field of 16 MV/m. The degree of dipole orientation estimated from the ratio of nonlinear susceptibility components depended on the deposition conditions such as the substrate temperature and the field strength. Thermal stability of the poled structure was found to be much better than that obtained by postpoling.

引用

页码：L1195 / L1197

页数：3

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