The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Dynamic Response of Dye-Sensitized Nanocrystalline Solar Cells: Characterization by Intensity-Modulated Photocurrent Spectroscopy
Abstract
The frequency-dependent photocurrent response of dye-sensitized TiO 2 cells to modulated illumination is analyzed. Analytical expressions are derived that describe generation, collection, and recombination of electrons in a thin layer nanocrystalline solar cell under conditions of steady illumination and with a superimposed small amplitude modulation. The analysis considers illumination from the contact side and from the counter electrode side, and characteristic differences in the intensity-modulated photocurrent response are predicted for the two cases. The attenuation of the ac photocurrent by the RC time constant of the cell is also considered. The theoretical analysis shows that intensity modulated photocurrent spectroscopy (IMPS) can provide new insight into the dynamics of electron transport and collection in the dye-sensitized solar cell. Experimental IMPS data measured for high-efficiency dye-sensitized cells are fitted to the theoretical model using Bode plots in order to derive values of the lifetime (2 × 10 -2 s) and diffusion coefficient (5 × 10 -5 cm 2 s -1 ) of photoinjected electrons.
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Citations
Cites
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
O'Regan, B., & Grätzel, M. (1991) · Nature · doi:10.1038/353737a0 · Cited by 28,599
Cited by
Grätzel, M. (2003) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/s1389-5567(03)00026-1 · Cited by 4,405
Impedance Analysis of Electrochemical Systems
Vivier, V., & Orazem, M. E. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00876 · Cited by 615
Metadata
- Authors
- Dloczik, L., Ileperuma, O., Lauermann, I., Peter, L. M., Ponomarev, E. A., Redmond, G., Shaw, N. J., & Uhlendorf, I.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-12-01
- Volume
- 101
- Issue
- 49
- Pages
- 10281-10289
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2064658021
- Cited by
- 629
- References
- 1
- FWCI
- 17.80
- Type
- journal article
- Language
- en
- Open access
- closed
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