ORIENTATIONAL STRUCTURE OF NONCENTROSYMMETRIC DOMAIN OF MEROCYANINE J-AGGREGATES STUDIED BY SURFACE 2ND-HARMONIC GENERATION

被引：36

作者：

KAJIKAWA, K

TAKEZOE, H

FUKUDA, A

机构：

[1] Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152, O-okayama

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 205卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(93)89234-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied the structural details of the assembly of merocyanine J-aggregates in a monolayer by the use of surface second-harmonic generation (SHG). Within each domain of the J-aggregates the molecular polar axis has the same direction and sense. Observing an interference of the SH light generated from monolayers on both substrate surfaces, we concluded that the domains align with their polar directions parallel to each other but with random senses, so that there is no in-plane macroscopic polarization. We also confirmed that the domains are randomly oriented at the air/water interface and the anisotropic alignment is produced by the flow due to a vertical deposition process.

引用

页码：225 / 228

页数：4

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