DOI: 10.1002/cphc.200800708. The Influence of Charge Transport and Recombination on the Performance of Dye‐Sensitized Solar Cells

The Influence of Charge Transport and Recombination on the Performance of Dye‐Sensitized Solar Cells

10.1002/cphc.200800708

Crossref journal-article

Wiley

ChemPhysChem (311)

Abstract

AbstractElectrochemical impedance spectroscopy (EIS) and transient voltage decay measurements are applied to compare the performance of dye sensitized solar cells (DSCs) using organic electrolytes, ionic liquids and organic‐hole conductors as hole transport materials (HTM). Nano‐crystalline titania films sensitized by the same heteroleptic ruthenium complex NaRu(4‐carboxylic acid‐4′‐carboxylate) (4,4′‐dinonyl‐2,2′‐bipyridyl)(NCS)2 , coded Z‐907Na are employed as working electrodes. The influence of the nature of the HTM on the photovoltaic figures of merit, that is, the open circuit voltage, short circuit photocurrent and fill factor is evaluated. In order to derive the electron lifetime, as well as the electron diffusion coefficient and charge collection efficiency, EIS measurements are performed in the dark and under illumination corresponding to realistic photovoltaic operating conditions of these mesoscopic solar cells. A theoretical model is established to interpret the frequency response off the impedance under open circuit conditions, which is conceptually similar to photovoltage transient decay measurements. Important information on factors that govern the dynamics of electron transport within the nanocrystalline TiO2 film and charge recombination across the dye sensitized heterojunction is obtained.

Bibliography

Wang, M., Chen, P., HumphryâBaker, R., Zakeeruddin, S. M., & GrÃ¤tzel, M. (2009). The Influence of Charge Transport and Recombination on the Performance of DyeâSensitized Solar Cells. ChemPhysChem, 10(1), 290â299. Portico.

Authors 5

Mingkui Wang (first)
Peter Chen (additional)
Robin Humphry‐Baker (additional)
Shaik M. Zakeeruddin (additional)
Michael Grätzel (additional)

References 51 Referenced 256

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Dates

Type	When
Created	16 years, 8 months ago (Dec. 31, 2008, 1:11 p.m.)
Deposited	1 year, 11 months ago (Sept. 28, 2023, 4:58 p.m.)
Indexed	4 weeks, 2 days ago (Aug. 7, 2025, 4:57 a.m.)
Issued	16 years, 7 months ago (Jan. 7, 2009)
Published	16 years, 7 months ago (Jan. 7, 2009)
Published Online	16 years, 7 months ago (Jan. 7, 2009)
Published Print	16 years, 7 months ago (Jan. 12, 2009)

Funders 0

None

BibTeX

@article{Wang_2009, title={The Influence of Charge Transport and Recombination on the Performance of Dye‐Sensitized Solar Cells}, volume={10}, ISSN={1439-7641}, url={http://dx.doi.org/10.1002/cphc.200800708}, DOI={10.1002/cphc.200800708}, number={1}, journal={ChemPhysChem}, publisher={Wiley}, author={Wang, Mingkui and Chen, Peter and Humphry‐Baker, Robin and Zakeeruddin, Shaik M. and Grätzel, Michael}, year={2009}, month=jan, pages={290–299} }

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