Studies on the Fine Structures and Opical Properties of Ultrathin Molecular Films by Developing Ellipso-BAM.

利用 Ellipso-BAM 研究超薄分子薄膜的精细结构和光学性质。

• 批准号: 08404047
• 负责人: KATO Teiji
• 金额: $ 18.56万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08404047/
• 关键词: Ellipsometry; Brewster Angle Microscopy; Ultrathin Molecular Films; Film Structure; Optical properties; Insoluble Monolayers; Nano-size Molecular Clusters; Self-Assembled Monolayers; Langmuir-Blodgett膜; マイクロエリプソメトリー; 超薄分子膜; 相転移; コンピュータ制御; 光学物

One of the most characteristic features of organized molecular films is their thinness. Among them, the thickness of monolayers is less the a few nanometer and it has been considered for long time that it is almost impossible to observe these films directly with microscopy. In 1991, Brewster angle microscopy was invented by two groups of France and Germany and we can have a new tool to observe structures of mono-layers directly. One object of this research was to develop a new instrument to combine the Brewster angle microscopy and the ellipsometry to observe structures in monolayers and to measure optical properties of monolayers simultaneously, and to discuss basic properties of these molecular systems.In this research project, we used an instrument of ellipsmetry using photo-elastic modulation type. Even with this modem instrument of higher sensitivity, we could not measure optical properties of monolayers at the water surface due to the lack of sensitivity when beam of light is limited to a narrow area, to our regret So, we could not obtain good results in the development of the new instrument. However, we could develop a new Brewster angle microscope of high performance and applied it to observe structures in the adsorbed monolayers, characteristic structure formation in monolayers of unsaturated long-chain acids, relaxation phenomena in monolayers during compression, etc. We also succeeded to measure ellipsometric mapping of monolayer structures on a transparent solid substrate.These results were published as 15 original scientific papers to journals in America and Europe.

有序分子膜最大的特点之一就是它的厚度。其中，单分子膜的厚度小于几纳米，长期以来，人们一直认为用显微镜几乎不可能直接观察到这些薄膜。1991年，法国和德国两个小组发明了布鲁斯特角显微镜，使我们有了一种直接观察单层结构的新工具。本研究的目的之一是开发一种将Brewster角显微镜和椭偏测量仪相结合来观察单分子膜中的结构和同时测量单分子膜的光学性质的新仪器，并讨论这些分子体系的基本性质。即使用这种灵敏度更高的现代仪器，由于光束局限在较窄的区域时，由于缺乏灵敏度，我们也无法测量水面上的单分子膜的光学性质，令人遗憾的是，我们在新仪器的研制中未能取得良好的效果。然而，我们可以开发一种新的高性能的布鲁斯特角显微镜，并将其应用于观察吸附的单分子层中的结构、不饱和长链酸单分子层中特征结构的形成、压缩过程中单分子层中的松弛现象等。我们还成功地测量了透明固体衬底上单分子层结构的椭圆偏振图。这些结果作为15篇原创科学论文发表在美国和欧洲的期刊上。

项目成果

K.Iimura, N.Suzuki, T.Kato: "Studies of the Spread Monolayers and LB Films of Long-Chain Alkylchlorosolanes by BAM and XPS" Bull.Chem.Soc.Jpn.Vol.69. 1201-1211 (1996)

K.Iimura、N.Suzuki、T.Kato：“通过 BAM 和 XPS 对长链烷基氯茄烷的铺展单层和 LB 薄膜进行的研究”Bull.Chem.Soc.Jpn.Vol.69。

K.Iimura, T.Kato: "Micro-phase Separation in Spread Monolayers of Trichloro (octadecyl) silane Mixed with Partially Fluorinated Amphiphile" Colloids and Surfaces. Vol.143. 491-501 (1998)

K.Iimura、T.Kato：“三氯（十八烷基）硅烷与部分氟化两亲物混合的分散单分子层中的微相分离”胶体和表面。

加藤貞二(分担執筆): "丸善株式会社" 現代界面コロイド化学の基礎. 191-198 (1998)

Teiji Kato（撰稿人）：“Maruzen Co., Ltd.”《现代界面胶体化学基础》191-198 (1998)。

K.Iimura and T.Kato: "Unusual Two-Step Phase Transitions in Spread Monolayers of Chloro (Dimenthyl)(Octaddecyl) Silane at the Water Surface Observed by Brewster Angle Microscopy" Mol.Cryst.& Liq.Cryst.294. 87-90 (1997)

K.Iimura 和 T.Kato：“通过布鲁斯特角显微镜观察到水表面氯（二薄荷基）（十八烷基）硅烷展开单层中不寻常的两步相变”Mol.Cryst。

T.Kato et al.,: "Incorporation of Water Molecules by Thermal Treatment of Monolayers up to Certain High Temperatures." Thin Solid Films. 284. 32-35 (1996)

T.Kato 等人：“通过将单分子层热处理至一定的高温来掺入水分子。”