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Hot electrons at metal-organic interface: Time-resolved two-photon photoemission study of phenol on Ag(111)
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10.1116/1.2167076
/content/avs/journal/jvsta/24/4/10.1116/1.2167076
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/24/4/10.1116/1.2167076
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Figures

Image of FIG. 1.
FIG. 1.

2PPE spectra of obtained in normal emission at various coverages . for and for . The spectra are shown as a function of the final state energy , where , and are the Fermi level, the electron kinetic energy, and the work function, respectively. “SS,” “MR,” and “IBT” stand for the surface state, the molecular resonance state, and the interband transition, respectively.

Image of FIG. 2.
FIG. 2.

Energy of the MR state and the vacuum level , referenced to the Fermi level , as a function of coverage.

Image of FIG. 3.
FIG. 3.

(a) Polarization-dependent 2PPE spectra obtained in normal emission for at 2 ML. The solid line is for -polarized pump and -polarized probe, while the dashed line is for -polarized pump and -polarized probe, and the dotted line is for -polarized pump and -polarized probe. (b) Integrated intensity of the MR peak (; circles) as a function of the polarization angle between the pump and the probe maintained -polarized. 0° and 90° correspond to - and -polarized pumps, respectively. The solid line indicates the normalized absorptance of a silver surface at the photon energy employed, while the dashed line represents the square of the electric field normal to the surface, .

Image of FIG. 4.
FIG. 4.

Time-resolved 2PPE spectra of 2 ML phenol obtained at various time delays between the pump and probe pulses.

Image of FIG. 5.
FIG. 5.

(a) Integrated intensity of the MR peak (; circles) at 2 ML coverage as a function of the time delay. The dashed line is the cross-correlation curve between the pump and the probe, while the circles are the experimental data, and the solid line is a theoretical fit to the data. (b) Lifetime of the MR state as a function of the phenol coverage.

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/content/avs/journal/jvsta/24/4/10.1116/1.2167076
2006-06-23
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Hot electrons at metal-organic interface: Time-resolved two-photon photoemission study of phenol on Ag(111)
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/24/4/10.1116/1.2167076
10.1116/1.2167076
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