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Copper nucleation on in the presence of sulphur

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Title: Copper nucleation on in the presence of sulphur
Authors: Bech, Martin1, Simonsen, Jens Bæk1, Handke, Bartosz1, Li, Zheshen2, Møller, Preben Juul1 pjm@kiku.dk
Source: Surface Science. Sep2006, Vol. 600 Issue 17, p3375-3381. 7p.
Subjects: Sulfur, Copper, Spectrum analysis, Native element minerals
Abstract: Abstract: The cleanliness and atomic structure of a zinc oxide single crystal is of major importance to the formation of copper clusters. We have used synchrotron radiation induced photoelectron spectroscopy to study the structure of copper deposited at room temperature in ultrahigh vacuum onto a single crystal, and the effect of subsequent annealing to 400°C. Further, sulphur interacts with copper particles on the zinc oxide surface upon exposing the sample to hydrogen sulphide until saturation. The experiments show that copper deposited at room temperature follows “monolayer followed by simultaneous multilayer” or “2-Dimensional islands” growth mode, and annealing at 400°C causes cluster formation and migration of copper into the ZnO substrate. In contrast, annealing after sulphur exposure induces an opposite migration: Copper migrates from ZnO bulk to the surface, reacting with the adsorbed sulphur. [Copyright &y& Elsevier]
Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 22278665
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Copper nucleation on in the presence of sulphur
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  Data: <searchLink fieldCode="AR" term="%22Bech%2C+Martin%22">Bech, Martin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Simonsen%2C+Jens+Bæk%22">Simonsen, Jens Bæk</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Handke%2C+Bartosz%22">Handke, Bartosz</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Zheshen%22">Li, Zheshen</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Møller%2C+Preben+Juul%22">Møller, Preben Juul</searchLink><relatesTo>1</relatesTo><i> pjm@kiku.dk</i>
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  Data: <searchLink fieldCode="JN" term="%22Surface+Science%22">Surface Science</searchLink>. Sep2006, Vol. 600 Issue 17, p3375-3381. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Sulfur%22">Sulfur</searchLink><br /><searchLink fieldCode="DE" term="%22Copper%22">Copper</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Native+element+minerals%22">Native element minerals</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: The cleanliness and atomic structure of a zinc oxide single crystal is of major importance to the formation of copper clusters. We have used synchrotron radiation induced photoelectron spectroscopy to study the structure of copper deposited at room temperature in ultrahigh vacuum onto a single crystal, and the effect of subsequent annealing to 400°C. Further, sulphur interacts with copper particles on the zinc oxide surface upon exposing the sample to hydrogen sulphide until saturation. The experiments show that copper deposited at room temperature follows “monolayer followed by simultaneous multilayer” or “2-Dimensional islands” growth mode, and annealing at 400°C causes cluster formation and migration of copper into the ZnO substrate. In contrast, annealing after sulphur exposure induces an opposite migration: Copper migrates from ZnO bulk to the surface, reacting with the adsorbed sulphur. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.susc.2006.04.036
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        Text: English
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      – SubjectFull: Spectrum analysis
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              Text: Sep2006
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