Dye sensitization of ceramic semiconducting electrodes for photoelectrochemical conversion
Résumé
Semiconducting ZnO ceramic electrodes have been sensitized by Rhodamine B and Ru (II) complex dyes. The photoresponse of the stable electrochemical cells can thus be extended into the visible region (400-600 nm) using hydroquinone as supersensitizer. Open circuit voltage of 0.4 V and short circuit currents up to 0.2 mA can be obtained with photons of hv < E gap of semiconductor.
Mots clés
ceramics
electrochemical electrodes
II VI semiconductors
photoelectrochemical cells
photovoltaic effects
semiconductor electrolyte boundaries
zinc compounds
ceramic semiconducting electrodes
photoelectrochemical conversion
ZnO ceramic electrodes
Rhodamine B
Ru II complex dyes
photoresponse
stable electrochemical cells
visible region
hydroquinone
supersensitizer
short circuit currents
photon energy
photovoltaic conversion
dye sensitisation II VI semiconductors
Domaines
Articles anciens
Origine : Accord explicite pour ce dépôt