Strong chemisorption of mercury at the HgSi(111) interface

Dongqi Li; Jingsu Lin; Wei Li; Sunwoo Lee; G. Vidali; P. A. Dowben

doi:10.1016/0039-6028(93)90357-P

Strong chemisorption of mercury at the HgSi(111) interface

Dongqi Li, Jingsu Lin, Wei Li, Sunwoo Lee, G. Vidali, P. A. Dowben

Department of Physics

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

4 Scopus citations

Abstract

A strongly chemisorbed Hg species is observed following adsorption of Hg on Si(111) at 110 K. Photoemission intensities suggest that initial Hg adsorption occurs into subsurface sites. Mercury induces a √3 × √3 LEED pattern at moderate exposures (10-20 L) or upon annealing at 10 langmuir Hg exposures. At higher exposures (> 30 L), a LEED 1 × 1 pattern develops. Contrary to what is observed for mercury adsorption on several metal surfaces, some mercury atoms are still left on the Si surface even after flashing the crystal to 1250°C.

Original language	English (US)
Pages (from-to)	71-78
Number of pages	8
Journal	Surface Science
Volume	280
Issue number	1-2
DOIs	https://doi.org/10.1016/0039-6028(93)90357-P
State	Published - Jan 1 1993

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(93)90357-P

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title = "Strong chemisorption of mercury at the HgSi(111) interface",

abstract = "A strongly chemisorbed Hg species is observed following adsorption of Hg on Si(111) at 110 K. Photoemission intensities suggest that initial Hg adsorption occurs into subsurface sites. Mercury induces a √3 × √3 LEED pattern at moderate exposures (10-20 L) or upon annealing at 10 langmuir Hg exposures. At higher exposures (> 30 L), a LEED 1 × 1 pattern develops. Contrary to what is observed for mercury adsorption on several metal surfaces, some mercury atoms are still left on the Si surface even after flashing the crystal to 1250°C.",

author = "Dongqi Li and Jingsu Lin and Wei Li and Sunwoo Lee and G. Vidali and Dowben, {P. A.}",

note = "Funding Information: The authors acknowledgeh elpful conversations with A. Kahn (Princeton University)a nd L. Brillson (Xerox). The authors would also like to thankJ .H. Weaver for permissiont o use his data. This work was funded by the NSF (DMR-88-20779 and DMR-88-02512).T he photoemission studiesw ere carried out at the SynchrotronR adiation Center in Stoughton,W isconsin which is funded by the NSF.",

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doi = "10.1016/0039-6028(93)90357-P",

language = "English (US)",

volume = "280",

pages = "71--78",

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T1 - Strong chemisorption of mercury at the HgSi(111) interface

AU - Li, Dongqi

AU - Lin, Jingsu

AU - Li, Wei

AU - Lee, Sunwoo

AU - Vidali, G.

AU - Dowben, P. A.

N1 - Funding Information: The authors acknowledgeh elpful conversations with A. Kahn (Princeton University)a nd L. Brillson (Xerox). The authors would also like to thankJ .H. Weaver for permissiont o use his data. This work was funded by the NSF (DMR-88-20779 and DMR-88-02512).T he photoemission studiesw ere carried out at the SynchrotronR adiation Center in Stoughton,W isconsin which is funded by the NSF.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - A strongly chemisorbed Hg species is observed following adsorption of Hg on Si(111) at 110 K. Photoemission intensities suggest that initial Hg adsorption occurs into subsurface sites. Mercury induces a √3 × √3 LEED pattern at moderate exposures (10-20 L) or upon annealing at 10 langmuir Hg exposures. At higher exposures (> 30 L), a LEED 1 × 1 pattern develops. Contrary to what is observed for mercury adsorption on several metal surfaces, some mercury atoms are still left on the Si surface even after flashing the crystal to 1250°C.

AB - A strongly chemisorbed Hg species is observed following adsorption of Hg on Si(111) at 110 K. Photoemission intensities suggest that initial Hg adsorption occurs into subsurface sites. Mercury induces a √3 × √3 LEED pattern at moderate exposures (10-20 L) or upon annealing at 10 langmuir Hg exposures. At higher exposures (> 30 L), a LEED 1 × 1 pattern develops. Contrary to what is observed for mercury adsorption on several metal surfaces, some mercury atoms are still left on the Si surface even after flashing the crystal to 1250°C.

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JO - Surface Science

JF - Surface Science

IS - 1-2

ER -

Strong chemisorption of mercury at the HgSi(111) interface

Abstract

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