Silver ions adsorbed to self-assembled monolayers of alkanedithiols on gold surfaces form Ag-dithiol-Au multilayer structures

被引：33

作者：

Deng, W

Yang, L

Fujita, D

Nejoh, H

Bai, C

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 3050047, Japan

[2] NYU, Dept Chem, New York, NY 10003 USA

[3] Chinese Acad Sci, Inst Chem, Beijing 10080, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2000年 / 71卷 / 06期

关键词：

D O I：

10.1007/s003390000574

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Double-ended alkanedithiols, 1,9-nonanedithiol and 1,5-pentanedithiol. formed self-assembled monolayers (SAMs) on Au(111) substrates and were used to adsorb silver ions from an ethanolic solution of silver nitrate and formed Ag-dithiol-Au multilayer structures. Ellipsometry, contact angle measurement and X-ray phototelectron spectroscopy (XPS) confirmed that the alkenedithiol molecules formed SAMs with only one-ended thiol groups attached to the Au substrates, which was supported by molecular mechanics calculation. XPS and X-ray Auger electron spectroscopy (XAES) indicated that silver ions were deposited onto the SAMs from the solution by the chemical reaction of silver nitrate with another-ended thiol groups of the SAMs. Atomic force microscopy (AFM) was used to observe SAMs and multilayer structures.

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页码：639 / 642

页数：4

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