Formation of Self-Assembled Organosilicon-Functionalized Quinquethiophene Monolayers by Fast Processing Techniques
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- 作者：Elena V. Agina ; Ivan A. Usov ; Oleg V. Borshchev ; Jingbo Wang ; Ahmed Mourran ; Maxim A. Shcherbina ; Artem V. Bakirov ; Souren Grigorian ; Martin M枚ller ; Sergei N. Chvalun ; Sergei A. Ponomarenko
- 刊名：Langmuir
- 出版年：2012
- 出版时间：November 20, 2012
- 年：2012
- 卷：28
- 期：46
- 页码：16186-16195
- 全文大小：823K
- 年卷期：v.28,no.46(November 20, 2012)
- ISSN：1520-5827
文摘
Different techniques for a relatively fast self-assembled monolayer film formation such as Langmuir鈥揃lodgett (LB), spin-coating, and dip-coating methods have been compared using chloro[11-(5鈥测€测€测€?ethyl-2,2鈥?5鈥?2鈥?5鈥?2鈥?5鈥?2鈥测€测€测€?quinquethiophene-5-yl)undecyl]dimethylsilane as a reactive precursor. It was shown that both spin-coating and LB techniques are very promising methods for preparation of highly ordered monolayer films of organosilicon-functionalized quinquethiophene with vertical orientation of oligothiophene fragments, while dip-coating gives only partial coverage. Optimal conditions for complete filling out the substrate surface by the quinquethiophene-containing monolayer by spin-coating and LB methods have been found. Grazing incidence X-ray diffraction measurements confirmed formation of in-plane crystalline order within the monolayer film. Changes in the layer structure were established by X-ray reflectivity and grazing incidence X-ray diffraction methods.