Abstract
The spatial distribution of the electrical potential throughout high surface area TiO2 electrodes has not been clearly elucidated, despite its importance to the understanding of the photo conversion process in dye sensitized solar cells. Impedance spectroscopy and electrochemical dye desorption experiments were employed to study the electrical characteristics of nanoporous TiO2 electrodes in thedark. The results show an unusual potential distribution across the TiO2 films, caused by the semiconducting nature of the TiO2 and the elctrolyte penetration in to the porous film. the potential of much of the TiO2 film will not necessarily correspond to the potential applied to the substrate electrode. Therefore, potential dependent measurements should be interpreted with caution.
| Original language | American English |
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| Pages | 306-316 |
| Number of pages | 11 |
| State | Published - 1997 |
| Event | Electrochemical Society Symposium on Electrode Materials and Processes for Energy Conversion and Storage IV, 191ist Meeting of the Electrochemical Society - Montreal, Canada Duration: 4 May 1997 → 9 May 1997 |
Conference
| Conference | Electrochemical Society Symposium on Electrode Materials and Processes for Energy Conversion and Storage IV, 191ist Meeting of the Electrochemical Society |
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| City | Montreal, Canada |
| Period | 4/05/97 → 9/05/97 |
NREL Publication Number
- NREL/CP-590-24963