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Local adsorption geometry of acetylene on Si(100)(2x1)

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UNSPECIFIED (2000) Local adsorption geometry of acetylene on Si(100)(2x1). PHYSICAL REVIEW B, 61 (24). pp. 16697-16703. ISSN 1098-0121.

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Abstract

Using C 1s scanned-energy-mode photoelectron diffraction the local adsorption geometry of acetylene on the Si(100)(2x1) surface has been determined and the results are compared with those of a similar study of ethylene adsorption on this surface. Both molecules bond to the surface along the Si-Si dimers with the C-C bonds parallel to the surface such that the C atoms are in off-atop sites relative to the Si dimer atoms. In both cases the Si-Si bond length (2.36+/-0.21 Angstrom, for ethylene and 2.44+/-0.58 Angstrom for acetylene) is compatible only with the dimer remaining intact after adsorption and not with the Si-Si distance of an ideally terminated undimerized Si(100) surface (3.84 Angstrom).

Item Type: Journal Article
Subjects: Q Science > QC Physics
Journal or Publication Title: PHYSICAL REVIEW B
Publisher: AMER PHYSICAL SOC
ISSN: 1098-0121
Official Date: 15 June 2000
Dates:
DateEvent
15 June 2000UNSPECIFIED
Volume: 61
Number: 24
Number of Pages: 7
Page Range: pp. 16697-16703
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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