Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion

被引：162

作者：

Lvov, Y ^{[1
]}

Yamada, S ^{[1
]}

Kunitake, T ^{[1
]}

机构：

[1] KYUSHU UNIV,DEPT CHEM SCI & TECHNOL,FUKUOKA 812,JAPAN

来源：

THIN SOLID FILMS | 1997年 / 300卷 / 1-2期

关键词：

multilayers; polymers; second-harmonic generation;

D O I：

10.1016/S0040-6090(96)09494-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The technique of polycation/polyanion layer-by-layer adsorption was applied to fabrication of non-linear optical films. Optical second-harmonic generation (SHG) was clearly observed from the films prepared by alternate adsorption of polycations and an azobenzene-containing polyanion (PAZO) on quartz substrate modified with polyion precursor. Regular film growth during adsorption cycles was proved by means of UV spectroscopy and quartz crystal microbalance technique. The SHG signal increased with the number of PAZO layers up to four layers, while further assembly reduced the signal. The SHG decreased considerably by heating the film up to 120 degrees C. (C) 1997 Elsevier Science S.A.

引用

收藏

页码：107 / 112

页数：6

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