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Electron Transport in the Nanostructured TiO2−Electrolyte System Studied with Time-Resolved Photocurrents

Year: 1997

Type: article

Abstract: Laser flash induced photocurrent transient measurements have been used to investigate the electron transport in nanostructured TiO 2 (anatase) thin film electrodes in contact with an electrolyte. The shape and the time domain for the current transients were found to be dependent on film thickness and electrolyte conductivity. The experimental results are discussed using a diffusion model. If the experimental results are interpreted as diffusion, a chemical diffusion coefficient for the electrons in the nanostructured system is determined to 1.5 × 10 -5 cm 2 /s using 700 mM LiClO 4 in ethanol as electrolyte.

Source: The Journal of Physical Chemistry B

DOI: 10.1021/jp962819y

Authors: Anita Solbrand, Henrik Lindström, Håkan Rensmo, Anders Hagfeldt, Sten-Eric Lindquist, Sven Södergren

Institution: Uppsala University

Language: English

Topic: TiO2 Photocatalysis and Solar Cells

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2028897864

FWCI: 29.6

Cites: 16

Cited by: 310

Related to: 10