Journalartikel

Jahr der Veröffentlichung: 2010

Seiten: 24-30

Zeitschrift: Journal of Electroanalytical Chemistry

Bandnummer: 650

Heftnummer: 1

ISSN: 1572-6657

DOI Link: https://doi.org/10.1016/j.jelechem.2010.09.014

Verlag: Elsevier

Abstract: 
A scanning electrochemical microscope (SECM) in the feedback and generation collection modes was used to investigate the regeneration of photoexcited dye cations at the semiconductor/electrolyte Inter face in a dye-sensitized solar cell (DSSC) based on ZnO/D149 An effective dye regeneration rate constant k(ox) of 9 55 x 10(7) CM9/2 Mol(-3/2) s(-1) was obtained from feedback mode experiments at different wavelengths and light intensities on ZnO/D149 electrodes Illuminated regions of the dye-sensitized electrodes could be differentiated from non-illuminated regions by local imaging in SECM generation-collection experiments with I as redox mediator We also report SECM feedback measurements on non-illuminated dye-sensitized electrodes to investigate the electron transfer kinetics of dissolved redox couples at the underlying FTO substrate (C) 2010 Elsevier B V All rights reserved

Harvard-Zitierstil: Tefashe, U., Loewenstein, T., Miura, H., Schlettwein, D. and Wittstock, G. (2010) Scanning electrochemical microscope studies of dye regeneration in indoline (D149)-sensitized ZnO photoelectrochemical cells, Journal of Electroanalytical Chemistry, 650(1), pp. 24-30. https://doi.org/10.1016/j.jelechem.2010.09.014

APA-Zitierstil: Tefashe, U., Loewenstein, T., Miura, H., Schlettwein, D., & Wittstock, G. (2010). Scanning electrochemical microscope studies of dye regeneration in indoline (D149)-sensitized ZnO photoelectrochemical cells. Journal of Electroanalytical Chemistry. 650(1), 24-30. https://doi.org/10.1016/j.jelechem.2010.09.014