Self-assembled monolayers of alkanethiol and fluoroalkanethiol investigated by noncontact atomic force microscopy

被引：6

作者：

Ichii, T ^{[1
]}

Urabe, M

Fukuma, T

Kobayashi, K

Matsushige, K

Yamada, H

机构：

[1] Kyoto Univ Katsura, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan

[2] Kyoto Univ, Venture Business Lab, Sakyo Ku, Kyoto 6158501, Japan

[3] Kyoto Univ, Int Innovat Lab, Sakyo Ku, Kyoto 6158501, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 7B期

关键词：

noncontact atomic force microscopy; energy dissipation; surface potential; self-assembled monolayers; alkanethiol; fluoroalkanethiol; phase separation;

D O I：

10.1143/JJAP.44.5378

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated single-component fluoroalkanethiol self-assembled monolayers (SAMs) and phase-separated SAMs composed of alkanethiol and fluoroalkanethiol by noncontact atomic force microscopy (NC-AFM). We obtained molecularly resolved images of the single-component fluoroalkanethiol SAMs. Their molecular film structures were compared with those of alkanethiol SAMs. In addition, energy dissipation and surface potential (SP) images were obtained for the phase-separated SAMs. These images clearly showed the feature of phase separation. The contrast in energy dissipation images was discussed in terms of their structural rigidity. The molecular dipole moments were calculated using a MOPAC program and the theoretical SP difference was compared with the experimental results.

引用

页码：5378 / 5381

页数：4

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