A new route to thin polymeric, non-centrosymmetric coatings

被引：67

作者：

Laschewsky, A ^{[1
]}

Mayer, B ^{[1
]}

Wischerhoff, E ^{[1
]}

Arys, X ^{[1
]}

Bertrand, P ^{[1
]}

Delcorte, A ^{[1
]}

Jonas, A ^{[1
]}

机构：

[1] UNIV CATHOLIQUE LOUVAIN, DEPT MAT & PROC SCI, B-1348 LOUVAIN, BELGIUM

来源：

THIN SOLID FILMS | 1996年 / 284卷

关键词：

multilayers; self assembly; polyelectrolyte complex; surface activation; non-centrosymmetry;

D O I：

10.1016/S0040-6090(95)08336-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new method for the build-up of non-centrosymmetric multilayers has been developed, based on physisorption of polyelectrolytes and subsequent ''pole reversal'' by chemical activation. The multilayers obtained are characterized by UV-Vis spectrometry, X-ray reflectometry, ellipsometry, time-of-flight secondary ion mass spectroscopy and measurements of the zeta-potential. In the chemical activation step of the multilayer build-up, a non-linear optical chromophore is formed, allowing second harmonic generation experiments which corroborate the non-centrosymmetric structure of the multilayers prepared, as well as demonstrating the non-centrosymmetry arrangement of the chromophores created.

引用

页码：334 / 337

页数：4

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