Photoinduced Reconfiguration Cycle in a Molecular Adsorbate Layer Studied by Femtosecond Inner-Shell Photoelectron Spectroscopy

Journal Article · Fri Mar 11 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.107401· OSTI ID:21562087

Dachraoui, H; Michelswirth, M; Bartz, P; Pfeiffer, W; Heinzmann, U ^[1]; Siffalovic, P ^[2]; Schaefer, C; Schnatwinkel, B; Mattay, J ^[3]; Drescher, M ^[4]

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1. Molekuel und Oberflaechenphysik, Fakultaet fuer Physik, Universitaet Bielefeld, Universitaetsstrasse 25, 33615 Bielefeld (Germany)
2. Institute of Physics, Slovak Academy of Sciences, Dubravska cesta 9, 84511 Bratislava (Slovakia)
3. Organische Chemie I, Fakultaet fuer Chemie, Universitaet Bielefeld, Universitaetsstrasse 25, 33615 Bielefeld (Germany)
4. Institut fuer Experimentalphysik, Department fuer Physik, Universitaet Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany)

A time-resolved study of core-level chemical shifts in a monolayer of aromatic molecules reveals complex photoinduced reaction dynamics. The combination of electron spectroscopy for chemical analysis and ultrashort pulse excitation in the extreme ultraviolet allows performing time-correlated 4d-core-level spectroscopy of iodine atoms that probe the local chemical environment in the adsorbate molecule. The selectivity of the method unveils metastable molecular configurations that appear about 50 ps after the excitation and are efficiently quenched back to the ground state.

• OSTI ID: 21562087
• Journal Information: Physical Review Letters, Vol. 106, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.106.107401; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL ANALYSIS
CHEMICAL SHIFT
EXCITATION
EXTREME ULTRAVIOLET RADIATION
IODINE
LAYERS
MOLECULAR STRUCTURE
MOLECULES
PHOTOELECTRON SPECTROSCOPY
PULSES
SHELLS
TIME RESOLUTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY-LEVEL TRANSITIONS
HALOGENS
NONMETALS
RADIATIONS
RESOLUTION
SPECTROSCOPY
TIMING PROPERTIES
ULTRAVIOLET RADIATION