Photoemission study of carbon monoxide on Pt(001) using Pohang synchrotron light source

Moonsup Han, Jae Sung Kim, S. H. Kim, H. G. Min, Bongsoo Kim, T. H. Kang, K. J. Kim, C. Y. Park

Research output: Contribution to journalArticlepeer-review

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We used the synchrotron radiation light source to investigate the CO adsorbate on Pt(001). We observed the valence band and the core-level spectra with increasing the amount of the CO molecule exposure. The valence band spectra showed the relation between the surface crystallographic change and the electronic structures of the CO molecule orbitals and the platinum d levels around the fermi energy. We also observed that the photon irradiation might dissociate the CO molecule and change significantly the sticking coefficient of the CO adsorption on the surface. The electronic structure after reaching the saturation coverage looks to be stable. Considering the stable surface structure after the CO saturation, we suggest that the CO molecule might be a good candidate of a gas phase surfactant for the metal growth control.

Original languageEnglish
Pages (from-to)S257-S262
JournalJournal of the Korean Physical Society
Issue numberSUPPL. 3
StatePublished - 1997


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