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Real-Time Measurement of the Vertical Binding Energy during the Birth of a Solvated Electron

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons22128

Stähler,  Julia
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons21453

Deinert,  Jan-Christoph
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons22225

Wegkamp,  Daniel
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons21592

Hagen,  Sebastian
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons22250

Wolf,  Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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ja511571y.pdf
(Verlagsversion), 3MB

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Zitation

Stähler, J., Deinert, J.-C., Wegkamp, D., Hagen, S., & Wolf, M. (2015). Real-Time Measurement of the Vertical Binding Energy during the Birth of a Solvated Electron. Journal of the American Chemical Society, 137(10), 3520-3524. doi:10.1021/ja511571y.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0024-AD2B-9
Zusammenfassung
Using femtosecond time-resolved two-photon photoelectron spectroscopy, we determine (i) the vertical binding energy (VBE = 0.8 eV) of electrons in the conduction band in supported amorphous solid water (ASW) layers, (ii) the time scale of ultrafast trapping at pre-existing sites (22 fs), and (iii) the initial VBE (1.4 eV) of solvated electrons before significant molecular reorganization sets in. Our results suggest that the excess electron dynamics prior to solvation are representative for bulk ASW.