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Development of AFM technique for atomic-scale imaging of physical properties of hydration structure

水合结构物理性质原子尺度成像的 AFM 技术的发展

基本信息

批准号：
22K04929
负责人：
小林成貴
金额：
$ 2.75万
依托单位：
The University of Shiga Prefecture
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2022
资助国家：
日本
起止时间：
2022-04-01 至 2025-03-31
项目状态：
未结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K04929/
关键词：
原子間力顕微鏡固液界面水和構造水素結合水和水ナノ計測

项目摘要

本研究課題では、垂直力と水平力を高感度で同時に検出できる液中周波数変調原子間力顕微鏡を用いて、水和構造とその物性を原子スケールで計測する手法を開発することを目的としている。水平力を検出するためには、カンチレバーをねじれ方向に振動させるが、今年度はまず、その振動振幅と原子分解能像のコントラストの関係について調べた。その結果、振動振幅が１００ｐｍ～１０ｐｍの間に最適値が存在する傾向が得られた。その結果をもとに、カルサイト表面－水界面で、垂直力と水平力の３次元力分布計測を行い、水和構造の可視化を試みた。垂直力の３次元力分布像には、既報と同じく、カルシウムイオン上に局在している水和水分子を表す輝点が観察された。同時に取得した水平力の３次元力分布像には、水和水分子の局在位置の両端で輝点が観察されたことから、探針側面と水和水分子の相互作用を可視化しているのではないかと考えられる。また、マイカでも同様の結果が得られた。

In this study, the number of cycles in the liquid, the number of cycles in the liquid, the atomic force, the physical properties of the atoms, the physical properties of the atoms, the number of cycles in the liquid at the same time, the vertical force, the horizontal force, the high sensitivity, the vertical force, the horizontal force, the horizontal force, the high sensitivity, the cycle number, the atomic force, the atomic force, the physical properties, the physical properties, the temperature, the temperature, The horizontal force shows that the vibration amplitude of the current year, the amplitude of the current year, and the amplitude of the vibration can be decomposed as well as the energy of atomic decomposition. The results of the test and the vibration amplitude of 100 pm~10pm showed that there was a significant difference in the amplitude of the vibration. The results show that the calculation of three-dimensional force distribution of vertical force, horizontal force, surface-water interface, vertical force, horizontal force, vertical force The distribution of vertical forces in the third dimension is like the distribution of vertical forces, such as the distribution of three-dimensional forces, such as the distribution of vertical forces, the distribution of vertical forces, the distribution of three-dimensional forces, such as the distribution of vertical forces, the distribution of three-dimensional forces, the distribution of vertical forces, the distribution of vertical forces, the distribution of three-dimensional forces, the distribution of vertical forces, the distribution of vertical forces, the distribution of three-dimensional forces. At the same time, the three-dimensional force distribution of water and water molecules is obtained. at the same time, the three-dimensional force distribution of water and water molecules is obtained. Water and water molecules are located at the end of the station to observe the interaction between water and water molecules. the interaction between water and water molecules can be changed. The results show that the results are the same as those of others.