Photoelectron spectroscopy of coronene molecules embedded in helium nanodroplets

We present the first measurement of a one-photon extreme-ultraviolet photoelectron spectrum (PES) of molecules embedded in superfluid helium nanodroplets. The PES of coronene is compared to gas phase and the solid phase PES, and to electron spectra of embedded coronene generated by charge transfer a...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors L Ben Ltaief, Shcherbinin, M, Mandal, S, Krishnan, S R, Richter, R, Turchini, S, Zema, N, Mudrich, M
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 08.07.2020
Subjects
Charge transfer
Clusters
Droplets
Fluids
Helium
Liquid helium
Penning ionization
Perturbation
Photoelectron spectroscopy
Photoelectrons
Photoionization
Physics - Atomic and Molecular Clusters
Solid phases
Spectrum analysis
Superfluidity
Vapor phases
Online AccessGet full text

Cover

More Information
Summary:We present the first measurement of a one-photon extreme-ultraviolet photoelectron spectrum (PES) of molecules embedded in superfluid helium nanodroplets. The PES of coronene is compared to gas phase and the solid phase PES, and to electron spectra of embedded coronene generated by charge transfer and Penning ionization through ionized or excited helium. The resemblence of the He-droplet PES to the one of the solid phase indicates that mostly Cor clusters are photoionized. In contrast, the He-droplet Penning-ionization electron spectrum is nearly structureless, indicating strong perturbation of the ionization process by the He droplet. These results pave the way to extreme ultraviolet photoelectron spectroscopy (UPS) of clusters and molecular complexes embedded in helium nanodroplets.
ISSN:2331-8422
DOI:10.48550/arxiv.2007.04235