Nanoscale electrodeposition of Al on n-Si(111):H from an ionic liquid
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| Title: | Nanoscale electrodeposition of Al on n-Si(111):H from an ionic liquid |
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| Authors: | Aravinda, C.L.1, Burger, B.1, Freyland, W. Werner.Freyland@chem-bio.uni-karlsruhe.de |
| Source: | Chemical Physics Letters. Feb2007, Vol. 434 Issue 4-6, p271-275. 5p. |
| Subjects: | Scanning tunneling microscopy, Scanning probe microscopy, Nucleation, Aluminum |
| Abstract: | Abstract: The H-terminated Si(111)/ionic liquid interface has been imaged by scanning tunneling microscopy (STM) for the first time. Employing the ionic liquid nanoscale electrodeposition of Al on Si(111):H substrates has been investigated by in situ electrochemical scanning probe techniques at room temperature. No underpotential deposition of Al is found. Nucleation of Al begins at the Nernst potential with the formation of large islands spread all over the substrate. Under the influence of the scanning STM tip, these islands are easily disturbed which makes it difficult to image the initial stages of electrochemical phase formation. We explain this by a relatively high mobility of the islands due to the poor wetting of Al on the Si(111):H substrate. The 3D growth of Al on Si(111):H follows a Volmer–Weber growth mode. Scanning tunneling spectra of larger Al clusters show clearly metallic characteristics. [Copyright &y& Elsevier] |
| Copyright of Chemical Physics Letters 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 23760084 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Nanoscale electrodeposition of Al on n-Si(111):H from an ionic liquid – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Aravinda%2C+C%2EL%2E%22">Aravinda, C.L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Burger%2C+B%2E%22">Burger, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Freyland%2C+W%2E%22">Freyland, W.</searchLink><i> Werner.Freyland@chem-bio.uni-karlsruhe.de</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Chemical+Physics+Letters%22">Chemical Physics Letters</searchLink>. Feb2007, Vol. 434 Issue 4-6, p271-275. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Scanning+tunneling+microscopy%22">Scanning tunneling microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+probe+microscopy%22">Scanning probe microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum%22">Aluminum</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The H-terminated Si(111)/ionic liquid interface has been imaged by scanning tunneling microscopy (STM) for the first time. Employing the ionic liquid nanoscale electrodeposition of Al on Si(111):H substrates has been investigated by in situ electrochemical scanning probe techniques at room temperature. No underpotential deposition of Al is found. Nucleation of Al begins at the Nernst potential with the formation of large islands spread all over the substrate. Under the influence of the scanning STM tip, these islands are easily disturbed which makes it difficult to image the initial stages of electrochemical phase formation. We explain this by a relatively high mobility of the islands due to the poor wetting of Al on the Si(111):H substrate. The 3D growth of Al on Si(111):H follows a Volmer–Weber growth mode. Scanning tunneling spectra of larger Al clusters show clearly metallic characteristics. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Chemical Physics Letters 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.cplett.2006.12.012 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 271 Subjects: – SubjectFull: Scanning tunneling microscopy Type: general – SubjectFull: Scanning probe microscopy Type: general – SubjectFull: Nucleation Type: general – SubjectFull: Aluminum Type: general Titles: – TitleFull: Nanoscale electrodeposition of Al on n-Si(111):H from an ionic liquid Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Aravinda, C.L. – PersonEntity: Name: NameFull: Burger, B. – PersonEntity: Name: NameFull: Freyland, W. IsPartOfRelationships: – BibEntity: Dates: – D: 05 M: 02 Text: Feb2007 Type: published Y: 2007 Identifiers: – Type: issn-print Value: 00092614 Numbering: – Type: volume Value: 434 – Type: issue Value: 4-6 Titles: – TitleFull: Chemical Physics Letters Type: main |
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