Atomic Force Microscopy for Visualization of Submolecular Structures

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  • 分子の内部構造を見る原子間力顕微鏡技術
  • ブンシ ノ ナイブ コウゾウ オ ミル ゲンシ カンリョク ケンビキョウ ギジュツ

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Abstract

<p>Recent advances in non-contact atomic force microscopy (NC-AFM) allow us to visualize structural frameworks of small organic molecules. So far, metallic probes mounted on a stiff piezoelectric sensor in a qPlus configuration and functionalized with a CO molecule have been mostly used to observe relatively flat molecules that are adsorbed parallel to the surface. We have developed a new method that is capable of imaging 3D molecules and surface systems using a so-called multi-pass routine. This imaging method can be used with commercial Si cantilevers to obtain submolecular resolution under less demanding conditions compared to the CO-functionalized probe. In this report, we describe technical points, theoretical interpretation of image contrast, and examples of multi-pass images. A comparison with the previous method is also given to better understand our newly developed technique.</p>

Journal

  • Hyomen Kagaku

    Hyomen Kagaku 37 (7), 320-325, 2016

    The Surface Science Society of Japan

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