title: Solvated electrons at the water-air interface: surface versus bulk signal in low kinetic energy photoelectron spectroscopy.
abstract: Time-resolved photoelectron spectroscopy at low kinetic energies (≲5 eV) is applied to dilute iodide solutions with different surface and bulk contributions. The results indicate a pronounced surface sensitivity. Signals assigned to solvated electrons near the liquid surface decay rapidly on a sub-ps timescale. In contrast to the literature, a long-lived surface solvated electron at 1.6 eV binding energy is not observed.
authors.affiliation: Max-Born Institut für nichtlineare Optik und Kurzzeitspektroskopie, Max-Born-Str. 2A, 12489 Berlin, Germany.
authors.forename: Franziska
authors.initials: F
authors.lastname: Buchner
authors.forename: Thomas
authors.initials: T
authors.lastname: Schultz
authors.forename: Andrea
authors.initials: A
authors.lastname: Lübcke
mesh_terms: D000388:Air; D004583:Electrons; D007700:Kinetics; D056951:Photoelectron Spectroscopy; D011789:Quantum Theory; D012995:Solubility; D013499:Surface Properties; D013997:Time Factors; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water