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research article
Charge transport properties in dye-sensitized nanostructured TiO2 thin film electrodes studied by photoinduced current transients
The charge transport in dye-sensitized nanostructured TiO2 was studied by laser pulse induced photocurrent transients. The exptl. curves were compared to simulations using a diffusion model with an initial electron distribution of an exponential decay. The simulations were optimized with respect to the exptl. curves giving an apparent diffusion coeff. of 6 × 10-6 cm2/s for the electrons with an electrolyte of 0.1M KI in propylene carbonate, the potential being +300 mV vs. Ag/AgCl in EtOH. The charge transport was highly dependent on electrolyte compn. and light intensity.
Type
research article
Authors
Solbrand, Anita
•
Henningsson, Anders
•
Soedergren, Sven
•
Lindstroem, Henrik
•
•
Lindquist, Sten-Eric.
Publication date
1999
Published in
Volume
103
Start page
1078
End page
1083
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
July 6, 2015
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