Growth processes and control of two-dimensional structure of carboxylic acid-terminated self-assembled monolayers on Au(111)

被引：20

作者：

Noh, J

Konno, K

Ito, E

Hara, M

机构：

[1] Hanyang Univ, Dept Chem, Adv Nanomat Lab, Seoul 133791, South Korea

[2] Tokyo Inst Technol, Dept Elect Chem, Yokohama, Kanagawa 2268502, Japan

[3] RIKEN, Frontier Res Syst, Local Spatiotemporal Funct Lab, Wako, Saitama 3510198, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 02期

关键词：

self-assembled monolayers; scanning tunneling microscopy; striped phase; molecular orientation; solvent effect;

D O I：

10.1143/JJAP.44.1052

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The growth processes and solvent effects on the two-dimensional structure of self-assembled monolayers (SAMs) formed by 6-mercaptohexanoic acid (MHA) on An(111) were examined by scanning tunneling microscopy (STM) and contact angle (CA) measurements. The STM study revealed for the first time that the striped phases of 6-mercaptohexanoic acid (MHA) on Au(111) are preferentially formed near the step edges of gold terraces in the initial stage of SAM growth. In addition, it was found that MHA SAMs prepared from a polar aprotic solvent form a more well-ordered structure and a better hydrophilic surface than those prepared from a polar protic solvent. From this study, we clearly demonstrated that the properties of solvents are very important factors in controlling the two-dimensional structure of carboxylic acid-terminated SAMs.

引用

页码：1052 / 1054

页数：3

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