Photoelectron spectroscopy from a liquid flatjet.
- Resource Type
- Article
- Authors
- Stemer, Dominik; Buttersack, Tillmann; Haak, Henrik; Malerz, Sebastian; Schewe, Hanns Christian; Trinter, Florian; Mudryk, Karen; Pugini, Michele; Credidio, Bruno; Seidel, Robert; Hergenhahn, Uwe; Meijer, Gerard; Thürmer, Stephan; Winter, Bernd
- Source
- Journal of Chemical Physics. 6/21/2023, Vol. 158 Issue 23, p1-10. 10p.
- Subject
- *PHOTOELECTRON spectroscopy
*SODIUM iodide
*LIQUIDS
*AQUEOUS solutions
*PHOTOEMISSION
*ORGANIC solvents
- Language
- ISSN
- 0021-9606
We demonstrate liquid-jet photoelectron spectroscopy from a flatjet formed by the impingement of two micron-sized cylindrical jets of different aqueous solutions. Flatjets provide flexible experimental templates enabling unique liquid-phase experiments that would not be possible using single cylindrical liquid jets. One such possibility is to generate two co-flowing liquid-jet sheets with a common interface in vacuum, with each surface facing the vacuum being representative of one of the solutions, allowing face-sensitive detection by photoelectron spectroscopy. The impingement of two cylindrical jets also enables the application of different bias potentials to each jet with the principal possibility to generate a potential gradient between the two solution phases. This is shown for the case of a flatjet composed of a sodium iodide aqueous solution and neat liquid water. The implications of asymmetric biasing for flatjet photoelectron spectroscopy are discussed. The first photoemission spectra for a sandwich-type flatjet comprised of a water layer encapsulated by two outer layers of an organic solvent (toluene) are also shown. [ABSTRACT FROM AUTHOR]