Titel
Hot electron electrochemistry at silver activated by femtosecond laser pulses
Abstract
A silver microelectrode with a diameter of 30 µm in an aqueous K2SO4 electrolyte was irradiated with 55 fs and 213 fs laser pulses. This caused the emission of electrons which transiently charged the electrochemical double layer. The two applied pulse durations were significantly shorter than the electron-phonon relaxation time. The laser pulse durations had negligible impact on the emitted charge, which is incompatible with multiphoton emission. On the other hand, the observed dependence of emitted charge on laser fluence and electrode potential supports the thermionic emission mechanism.
Stichwort
hot electron emissionfemtosecond laserlaser electrochemistrysilver electrode
Objekt-Typ
Sprache
Englisch [eng]
Erschienen in
Titel
Opto-Electronic Advances
Band
6
Ausgabe
6
ISSN
2096-4579
Erscheinungsdatum
2023
Publication
Opto-Electronic Advances
Erscheinungsdatum
2023
Zugänglichkeit
Rechteangabe
© The Author(s) 2023

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