INSITU SCANNING TUNNELING MICROSCOPY OF UNDERPOTENTIAL DEPOSITION IN AQUEOUS-SOLUTION .3. SILVER ADLAYERS ON AU(111)

被引：77

作者：

HACHIYA, T ^{[1
]}

ITAYA, K ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC ENGN,DEPT ENGN SCI,SENDAI,MIYAGI 980,JAPAN

来源：

ULTRAMICROSCOPY | 1992年 / 42卷

关键词：

D O I：

10.1016/0304-3991(92)90305-4

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

The underpotential deposition (UPD) of Ag has been investigated on a Au(III) surface in an aqueous sulfuric acid solution using an electrochemical scanning tunneling microscope (ESTM). Real-space images of the substrate surface ot Au(111) are acquired before initiating the UPD. The (square-root 3 X square-root 3)R30-degrees structure can be seen after the formation of the first UPD layer. Individual close-packed Ag atoms have also been resolved on a completely filled Ag layer. It is concluded that the first close-packed Ag layer is epitaxially formed OR the Au(111).

引用

页码：445 / 452

页数：8

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