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Interferometric two-photon photoemission correlation technique and femtosecond wet-electron dynamics at the TiO2 (110) surface |
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| Authors: | Bin LI Jin ZHAO Min FENG Ken ONDA |
| Institution: | (1) Engineering Center, University of Colorado, Boulder, Colorado 80302, USA;(2) Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA;(3) Surface Science Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA;(4) Department of Chemistry and Materials Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan |
| Abstract: | The femtosecond time-resolved two-photon photoemission (TR-2PP) and the ultra high vacuum (UHV) surface science techniques are integrated to investigate the electronic structures and the interfacial electron transfer dynamics at the atomically ordered adsorbate overlayers on TiO2 singlecrystalline surfaces. Our research into the CH3OH/TiO2 system exhibits complex dynamics, providing abundant information with regard to electron transport and solvation processes in the interfacial solvent structures. These represent the fundamentally physical, photochemical, and photocatalytic reactions of protic chemicals covered with metal-oxides. |
| Keywords: | time-resolved two-photon photoemission (TR-2PP) reverse charge transfer (RCT) proton-coupled electron transfer (PCET) ultra high vacuum (UHV) Optical Bloch Equation (OBE) |
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