Photoelectron spectroscopy from a liquid flatjet

0573631 - ÚOCHB 2024 RIV US eng J - Journal Article
Stemer, D. - Buttersack, T. - Haak, H. - Malerz, S. - Schewe, Hanns Christian - Trinter, F. - Mudryk, K. - Pugini, M. - Credidio, B. - Seidel, R. - Hergenhahn, U. - Meijer, G. - Thürmer, S. - Winter, B.
Photoelectron spectroscopy from a liquid flatjet.
Journal of Chemical Physics. Roč. 158, č. 23 (2023), č. článku 234202. ISSN 0021-9606. E-ISSN 1089-7690
Institutional support: RVO:61388963
Keywords : molecular structure * aqueous solutions * water molecules
OECD category: Physical chemistry
Impact factor: 4.4, year: 2022
Method of publishing: Open access
https://doi.org/10.1063/5.0155182

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.
Permanent Link: https://hdl.handle.net/11104/0344033


Research data: Zenodo