Surface photochemistry probed by two-photon photoemission spectroscopy.

Zhou, C.; Ma, Z.; Ren, Z.; Wodtke, A. M.; Yang, X.

doi:10.1039/C2EE21493H

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学術論文

Surface photochemistry probed by two-photon photoemission spectroscopy.

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Wodtke, A. M.
Department of Dynamics at Surfaces, MPI for biophysical chemistry, Max Planck Society;

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引用

Zhou, C., Ma, Z., Ren, Z., Wodtke, A. M., & Yang, X. (2012). Surface photochemistry probed by two-photon photoemission spectroscopy. Energy and Environmental Science, (5), 6833-6844. doi:10.1039/C2EE21493H.

引用: https://hdl.handle.net/11858/00-001M-0000-000F-9C1E-5

要旨

Two-photon photoemission (2PPE) has been widely used in the study of electronic structure and dynamics of unoccupied electronic states on different types of surfaces and interfaces. Since 2PPE probes electronically excited states, it should be sensitive to surface excited electronic structure changes that accompany surface chemical reactions. Therefore, this method could potentially be used to study the kinetics and dynamics of surface chemical reactions as well as surface photocatalysis. In this article, we briefly review recent progress made in the study of surface photochemistry and photocatalysis using the time-dependent 2PPE (TD-2PPE) method. A few examples are given to demonstrate the application of this method in probing surface photochemistry and photocatalysis, particularly photocatalysis of methanol on TiO2 surfaces. Since many problems associated with surface photochemistry and surface photocatalysis are related to energy and environmental issues, the 2PPE technique could have important applications in the study of the fundamental problems in energy and environmental sciences.