The structure of a coronene adlayer formed in a benzene solution: studies by in situ STM and ex situ LEED

被引：39

作者：

Yoshimoto, S ^{[1
]}

Narita, R ^{[1
]}

Wakisaka, M ^{[1
]}

Itaya, K ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2002年 / 532卷 / 1-2期

关键词：

in situ STM; ex situ LEED; Au(111); coronene; thin film;

D O I：

10.1016/S0022-0728(02)00729-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In situ scanning tunneling microscopy (STM) revealed that a highly ordered adlayer of coronene was formed oil an Au(111) substrate by immersion in benzene solution containing coronene. High-resolution STM images allowed us to determine the packing arrangement of coronene. The coronene adlayer on Au(111)-(1 x 1) revealed a commensurate (4 x 4) symmetry (theta = 0.0625) with a flat-lying orientation at 0.75 V versus the reversible hydrogen electrode (RHE) in aqueous HClO4. The adlayer structure of coronene determined by ex situ low-energy electron diffraction (LEED) using an ultrahigh vacuum-electrochemical (UHV-EC) technique was consistent with that determined by in situ STM in aqueous HClO4. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：331 / 335

页数：5

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