Field enhancement at crystal steps: An intensity effect in vibrational spectra of adsorbed molecules

An enhancement of the electric field near a step in a single-crystal metal surface could give rise to an increase in the molar extinction coefficient for molecules adsorbed on the step. For CO adsorbed on a stepped surface. Pt(S)-[4(111)×(100)]. we calculate the extinction coefficient to be about 2....

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Veröffentlicht in:	Surface science 1984-09, Vol.145 (1), p.L453-L458
Hauptverfasser:	Greenler, Robert G., Dudek, John A., Beck, D.E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Chemistry Cross-disciplinary physics: materials science rheology Exact sciences and technology General and physical chemistry Materials science Metals, semimetals and alloys Metals. Metallurgy Physics Solid-gas interface Specific materials Surface physical chemistry
Online-Zugang:	Volltext
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Zusammenfassung:	An enhancement of the electric field near a step in a single-crystal metal surface could give rise to an increase in the molar extinction coefficient for molecules adsorbed on the step. For CO adsorbed on a stepped surface. Pt(S)-[4(111)×(100)]. we calculate the extinction coefficient to be about 2.2 times greater for molecules adsorbed on the step than for molecules adsorbed on the middle of the terrace.
ISSN:	0039-6028 1879-2758
DOI:	10.1016/0039-6028(84)90755-6