Scanning tunneling microscopy investigation of the structure of methanethiolate on Ag(111)

M. Yu; S. M. Driver; D. P. Woodruff

doi:10.1021/la0503810

Scanning tunneling microscopy investigation of the structure of methanethiolate on Ag(111)

M. Yu
, S. M. Driver
, D. P. Woodruff^*

^*Corresponding author for this work

University of Warwick
University of Cambridge

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Scanning tunneling microscopy (STM) has been used to investigate the structure of the ordered methanethiolate overlayer formed on Ag(111) by reaction at room temperature with dimethyl disulfide. High-resolution images show an ordered structure with three inequivalent atomic-scale protrusions within each (√ × √7)R19° surface unit mesh which can be reconciled with methanethiolate species on a regular lateral submesh, similar to that proposed in the multilayer (√ × √7)R19°-S sulfide phase previously reported. STM imaging during dynamic dosing also provides evidence for a significant change in the outermost layer Ag atom density, consistent with a reconstructed surface model. Possible models for this reconstruction are presented and discussed in the light of available information.

Original language	English
Pages (from-to)	7285-7291
Number of pages	7
Journal	Langmuir
Volume	21
Issue number	16
DOIs	https://doi.org/10.1021/la0503810
State	Published - 2 Aug 2005
Externally published	Yes

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10.1021/la0503810

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title = "Scanning tunneling microscopy investigation of the structure of methanethiolate on Ag(111)",

abstract = "Scanning tunneling microscopy (STM) has been used to investigate the structure of the ordered methanethiolate overlayer formed on Ag(111) by reaction at room temperature with dimethyl disulfide. High-resolution images show an ordered structure with three inequivalent atomic-scale protrusions within each (√ × √7)R19° surface unit mesh which can be reconciled with methanethiolate species on a regular lateral submesh, similar to that proposed in the multilayer (√ × √7)R19°-S sulfide phase previously reported. STM imaging during dynamic dosing also provides evidence for a significant change in the outermost layer Ag atom density, consistent with a reconstructed surface model. Possible models for this reconstruction are presented and discussed in the light of available information.",

author = "M. Yu and Driver, \{S. M.\} and Woodruff, \{D. P.\}",

year = "2005",

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AU - Yu, M.

AU - Driver, S. M.

AU - Woodruff, D. P.

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Y1 - 2005/8/2

N2 - Scanning tunneling microscopy (STM) has been used to investigate the structure of the ordered methanethiolate overlayer formed on Ag(111) by reaction at room temperature with dimethyl disulfide. High-resolution images show an ordered structure with three inequivalent atomic-scale protrusions within each (√ × √7)R19° surface unit mesh which can be reconciled with methanethiolate species on a regular lateral submesh, similar to that proposed in the multilayer (√ × √7)R19°-S sulfide phase previously reported. STM imaging during dynamic dosing also provides evidence for a significant change in the outermost layer Ag atom density, consistent with a reconstructed surface model. Possible models for this reconstruction are presented and discussed in the light of available information.

AB - Scanning tunneling microscopy (STM) has been used to investigate the structure of the ordered methanethiolate overlayer formed on Ag(111) by reaction at room temperature with dimethyl disulfide. High-resolution images show an ordered structure with three inequivalent atomic-scale protrusions within each (√ × √7)R19° surface unit mesh which can be reconciled with methanethiolate species on a regular lateral submesh, similar to that proposed in the multilayer (√ × √7)R19°-S sulfide phase previously reported. STM imaging during dynamic dosing also provides evidence for a significant change in the outermost layer Ag atom density, consistent with a reconstructed surface model. Possible models for this reconstruction are presented and discussed in the light of available information.

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DO - 10.1021/la0503810

M3 - 文章

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SP - 7285

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JO - Langmuir

JF - Langmuir

IS - 16

ER -

Scanning tunneling microscopy investigation of the structure of methanethiolate on Ag(111)

Abstract

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