Molecular alignment in organic thin films

被引：18
作者：
Ehara, T [1 ]
Hirose, H [1 ]
Kobayashi, H [1 ]
Kotani, M [1 ]
机构：
[1] Gakushuin Univ, Fac Sci, Tokyo 1718588, Japan
来源：
SYNTHETIC METALS | 2000年 / 109卷 / 1-3期
关键词：
molecular alignment; organic thin films; 4-dimethylamino-4 '-nitrostilbene;
D O I：
10.1016/S0379-6779(99)00196-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Molecules can be oriented when they are adsorbed onto a solid surface with an appropriate surface structure. Examples are shown which illustrate a unidirectional alignment. 4-Dimethylamino-4'-nitrostilbene (DMANS) exhibits an oriented adsorption when evaporated onto a cleaved face of a glycine single crystal. The same compound exhibits also a high degree of orientational order when an evaporated film of the compound is mechanically brushed in a direction. The mechanism of the molecular alignment is discussed based on the results of polarized optical absorption, optical second-harmonic generation, X-ray diffraction and scanning force microscopy. (C) 2000 Elsevier Science S.A. All rights reserved.
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页码：43 / 46
页数：4
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