The work function of submonolayer cesium-covered gold: A photoelectron spectroscopy study

Jerry L LaRue, Jason D White, N Hendrik Nahler, Z Liu, Y Sun, P. A. Pianetta, D.J. Auerbach, Alec M Wodtke

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Abstract

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 1.61+/-0.08 eV, consistent with previous assumptions used to analyze vibrationally promoted electron emission. A discussion of possible Cs layer structures is also presented.
Original languageEnglish
Article number024709
JournalJournal of Chemical Physics
Volume129
Issue number2
DOIs
Publication statusPublished - 2008

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