Solvated electrons at the water-air interface: surface versus bulk signal in low kinetic energy photoelectron spectroscopy

Phys Chem Chem Phys. 2012 Apr 28;14(16):5837-42. doi: 10.1039/c2cp23305c. Epub 2012 Mar 13.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Air
  • Electrons*
  • Kinetics
  • Photoelectron Spectroscopy
  • Quantum Theory*
  • Solubility
  • Surface Properties
  • Time Factors
  • Water / chemistry*

Substances

  • Water