Synthesis and investigation of π-conjugated azomethine self-assembled multilayers by layer-by-layer growth

被引：5
|
作者：
Kamura, Masakazu [1 ,2 ,3 ]
Kuzumoto, Yasutaka [1 ,2 ]
Aomori, Shigeru [1 ,2 ]
Houjou, Hirohiko [3 ]
Kitamura, Masatoshi [2 ]
Arakawa, Yasuhiko [2 ,3 ]
机构：
[1] Sharp Co Ltd, Adv Mat & Energy Engn Labs, Kashiwa, Chiba 2770005, Japan
[2] Univ Tokyo, INQIE, Meguro Ku, Tokyo 1538505, Japan
[3] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
来源：
THIN SOLID FILMS | 2010年 / 518卷 / 18期
关键词：
Layer-by-layer complexation; Chemisorption; Multilayers; pi-conjugation; Azomethine; THIN-FILMS; TUNNELING SPECTROSCOPY; FABRICATION; TRANSISTORS; OLIGOIMIDE; MOLECULES; CHEMISTRY; OLIGOMERS;
D O I：
10.1016/j.tsf.2010.03.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Layer-by-layer formation for pi-conjugated azomethine multilayers bonded on substrates was investigated. The multilayers were synthesized using ethanol (EtOH) and dichloromethane (DCM) as reaction solvents. The multilayer characteristics were analyzed using UV-vis absorption spectroscopy, ellipsometric thickness, and atomic force microscopy. The absorption spectra and ellipsometric thicknesses of multilayers formed using EtOH and DCM were compared. The results indicate that EtOH is more suitable than DCM for such layer-by-layer formation. In addition, bandgaps estimated from the absorption edge of multilayers were investigated. The results indicate that the bandgap decreases as the number of benzene rings contained in the molecular chain of the multilayer increases. Also, a multilayer with four benzene rings bonded on a substrate had a bandgap close to that of a polymer with a similar chemical structure. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：5115 / 5120
页数：6
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