Controlling organic reactions on silicon surfaces with a scanning tunneling microscope: theoretical and experimental studies of resonance-mediated desorption

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DOIResolve DOI: http://doi.org/10.1039/b004093m
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TypeArticle
Journal titleFaraday Discussions
Volume117
Pages213229; # of pages: 17
AbstractThe dynamics of tip-induced, resonance-mediated bond-breaking in complex organic adsorbates is studied theoretically and experimentally. Desorption of benzene from a Si(100) surface is found to be efficient and sensitive to voltage, the measured yield rising from below 10⁻¹º to ca. 10⁻⁶ per electron within a ca. 0.8 V range at low (<100 pA) current. A theoretical model, based upon first principles electronic structure calculations and quantum mechanical wavepacket simulations, traces these observations to multi-mode dynamics triggered by a transition into a cationic resonance. The model is generalized to provide understanding of, and suggest a means of control over, the behaviour of different classes of organic adsorbates under tunneling current.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12339041
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Record identifier05c36d7d-5ca9-48c6-bb5d-c56c682dbb27
Record created2009-09-11
Record modified2016-05-09
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