Au particle deposition onto self-assembled monolayers of thiol and dithiol molecules

被引：83

作者：

Ohgi, T ^{[1
]}

Sheng, HY ^{[1
]}

Nejoh, H ^{[1
]}

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 305, Japan

来源：

APPLIED SURFACE SCIENCE | 1998年 / 130卷

关键词：

scanning tunneling microscopy (STM); self-assembled monolayers (SAMs); thiol and dithiol molecule; Coulomb blockade; single electron tunneling;

D O I：

10.1016/S0169-4332(98)00177-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Gold depositions on self-assembled monolayers (SAMs) of thiol (HS(CH(2))(7)CH(3)) and dithiol (HS(CH(2))(n)SH, n = 6, 8, 10) molecules were investigated by a scanning tunneling microscope in air. In the case of thiols, evaporated gold atoms were found to penetrate and form monoatomic height islands under the SAMs. On the contrary, gold deposition onto the dithiols resulted in the formation of the gold particles on top of the SAMs. Each Au particle is estimated to have similar to 200 atoms and this size is independent of Au coverage, at least below 1 ML. The electrical properties such as Coulomb blockade were also studied by scanning tunneling spectroscopy. (C) 1998 Elsevier Science B.V. All rights reserved.

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页码：919 / 924

页数：6

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