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Revealing Dynamic Processes of Materials in Liquids Using Liquid Cell Transmission Electron Microscopy

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离子液体:用于亚微米尺度单层图案的非破坏性,非挥发性成像液体.

Atsushi Hozumi¹, Pei Bien, Thomas J McCarthy

¹National Institute of Advanced Industrial Science & Technology (AIST), Moriyama, Nagoya 463-8560, Japan. a.hozumi@aist.go.jp

Journal of the American Chemical Society

|April 9, 2010

概括

离子液体可视化表面上的纳米尺度图案. 这种无损的方法使用Bis ((hydroxyethyl) dimethylammonium methanesulfonate (BHDAMS) 进行亚微米单层的高对比成像.

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科学领域:

材料科学材料科学材料科学
表面化学表面化学
纳米技术纳米技术

背景情况:

对先进的材料和纳米技术来说,可视化亚微米尺度的图案至关重要.
现有的用于薄单层成像的方法可能是复杂的或有害的.
有图案的表面的选择性湿是纳米制造的一个关键挑战.

研究的目的:

开发一种新的,无损的方法来可视化单层的亚微米尺度图案.
使用离子液体 (IL) 进行选择性湿和高对比度成像.
为了证明该技术在一系列模式大小中的有效性.

主要方法:

将离子液体Bis(hydroxyethyl) dimethylammonium methanesulfonate (BHDAMS) 成一个光刻图样本.
利用BHDAMS在光分解区域上的选择性湿特性.
使用光学和激光显微镜观察IL复制的模式.

主要成果:

成功可视化了大约1.0nm厚的单层的亚微米尺度模式 (500nm到10微米).
BHDAMS选择性地湿光分解区域,创建高对比度图像.
非挥发性IL提供了足够的对比度,用于在没有损坏的情况下对大面积的成像.

结论:

描述的基于离子液体的方法提供了一种简单的,无损的技术,用于可视化纳米级表面图案.
这种方法与标准实验室设备兼容,使其广泛可用.
高对比度和可扩展性使其适用于质量控制和纳米技术研究.

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