Distribution and amplification of an electric field in ferroelectric-dye heterostructures

被引：1

作者：

Yudin, S. G. ^{[1
]}

Blinov, L. M. ^{[1
]}

Lazarev, V. V. ^{[1
]}

Palto, S. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Shubnikiv Inst Crystallog, Moscow 119333, Russia

来源：

PHYSICS OF THE SOLID STATE | 2012年 / 54卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

LANGMUIR-BLODGETT-FILMS; LOCAL-FIELD; COPOLYMER; MEMORIES;

D O I：

10.1134/S1063783412050484

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The distribution of an electric field has been investigated in Langmuir-Blodgett thin-film heterostructures prepared by sequentially transferring layers of the ferroelectric copolymer poly(vinylidene fluoride-trifluoroethylene) P(70% VDF 70% -30% TrFE) and the azo dye. An alternating-current voltage applied to the electrodes is unevenly distributed across layers of the dye and the copolymer in accordance with a constant induction along the normal to the heterostructure. The electric-field-induced shift of the absorption spectrum of the dye serves as a probe of the electric field and reveals a noticeable amplification of the electric field in the dye layers (by a factor of 2-7). The electric field in the ferroelectric is directed opposite to the direction of the electric field applied to the electrodes of the heterostructure.

引用

页码：940 / 944

页数：5

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