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Using visible and x-ray photoelectron spectroscopy, we measured the work function of a Au(111) surface at a well-defined submonolayer coverage of Cs. For a Cs coverage producing a photoemission maximum with a He–Ne laser, the work function is , consistent with previous assumptions used to analyze vibrationally promoted electron emission. A discussion of possible Cs layer structures is also presented.


Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in

J. L. LaRue, J. D. White, N. H. Nahler, Z. Liu, S. Sun, P. A. Pianetta, D. J. Auerbach, A. M. Wodtke, The work function of sub-monolayer cesium-covered gold: A photoelectron spectroscopy study, J. Chem. Phys. 2008, 129, 024709, DOI: 10.1063/1.2953712

and may be found at DOI: 10.1063/1.2953712.


American Institute of Physics



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