Self-assembled molecular corrals on a semiconductor surface

S Dobrin, K Harikumar, R Jones, N Li, I McNab, J Polanyi, Peter Sloan, Z Waqar, J Yang, S Ayissi, W A Hofer

Research output: Contribution to journalArticle

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Abstract

Nano-corrals for capturing surface electrons are of interest in molecular electronics. Here we show that haloalkane molecules, e.g., 1-chlorododecane, physisorbed on Si(111)-(7 · 7) self-assemble to form dimers stable to 100 C which corral silicon adatoms. Corral size is shown to be governed by the haloalkane chain-length. Spectroscopic and theoretical evidence shows that the haloalkane dimer induces electron transfer to the corralled adatom, shifting its energy levels by 1 eV. Isolation of a labile pre-cursor points to a model for corral formation which combines mobility with immobility; monomers diffusing in a mobile vertical state meet and convert to the immobile horizontal dimers constituting the corrals.
Original languageEnglish
Pages (from-to)43-47
Number of pages5
JournalSurface Science
Volume600
Issue number5
DOIs
Publication statusPublished - 2006

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Dimers
Adatoms
dimers
Semiconductor materials
adatoms
Molecular electronics
Electrons
molecular electronics
Silicon
Chain length
Electron energy levels
isolation
electron transfer
monomers
Monomers
energy levels
Molecules
silicon
molecules
electrons

Cite this

Dobrin, S., Harikumar, K., Jones, R., Li, N., McNab, I., Polanyi, J., ... Hofer, W. A. (2006). Self-assembled molecular corrals on a semiconductor surface. Surface Science, 600(5), 43-47. https://doi.org/10.1016/j.susc.2005.12.044

Self-assembled molecular corrals on a semiconductor surface. / Dobrin, S; Harikumar, K; Jones, R; Li, N; McNab, I; Polanyi, J; Sloan, Peter; Waqar, Z; Yang, J; Ayissi, S; Hofer, W A.

In: Surface Science, Vol. 600, No. 5, 2006, p. 43-47.

Research output: Contribution to journalArticle

Dobrin, S, Harikumar, K, Jones, R, Li, N, McNab, I, Polanyi, J, Sloan, P, Waqar, Z, Yang, J, Ayissi, S & Hofer, WA 2006, 'Self-assembled molecular corrals on a semiconductor surface', Surface Science, vol. 600, no. 5, pp. 43-47. https://doi.org/10.1016/j.susc.2005.12.044
Dobrin S, Harikumar K, Jones R, Li N, McNab I, Polanyi J et al. Self-assembled molecular corrals on a semiconductor surface. Surface Science. 2006;600(5):43-47. https://doi.org/10.1016/j.susc.2005.12.044
Dobrin, S ; Harikumar, K ; Jones, R ; Li, N ; McNab, I ; Polanyi, J ; Sloan, Peter ; Waqar, Z ; Yang, J ; Ayissi, S ; Hofer, W A. / Self-assembled molecular corrals on a semiconductor surface. In: Surface Science. 2006 ; Vol. 600, No. 5. pp. 43-47.
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