Abstract

Recent progress toward understanding the processes taking place in dye-sensitized nanocrystalline solar cells (DSC) is reviewed, and some areas characterized by controversy or poor understanding are highlighted. The thermodynamic and kinetic criteria for successful cell design are outlined, and experimental results obtained by a range of methods for characterizing the stationary and dynamic properties of DCS are discussed. These methods include direct measurement of the quasi-Fermi level using an indicator electrode and charge extraction measurements to determine the energetic distribution of electron traps in the nanocrystalline oxide. The influence of electron trapping on dynamic measurements of electron transfer and transport is discussed within the framework of the quasistatic assumption, and a new assessment of the electron diffusion length in the DSC is given, which suggests that collection of photoinjected electrons should be considerably more efficient than previously assumed.

Keywords

Nanocrystalline materialDye-sensitized solar cellCharacterization (materials science)ElectronMaterials scienceChemical physicsSolar cellDiffusionQuasistatic processElectron transferRange (aeronautics)Electron transport chainElectrodeNanotechnologyChemistryOptoelectronicsThermodynamicsPhysicsPhysical chemistry

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Dye-sensitized nanocrystalline solar cells

The basic physical and chemical principles behind the dye-sensitized nanocrystalline solar cell (DSC: also known as the Grätzel cell after its inventor) are outlined in order to...

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Publication Info

Year
2007
Type
article
Volume
111
Issue
18
Pages
6601-6612
Citations
377
Access
Closed

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Laurence M. Peter (2007). Characterization and Modeling of Dye-Sensitized Solar Cells. The Journal of Physical Chemistry C , 111 (18) , 6601-6612. https://doi.org/10.1021/jp069058b

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DOI
10.1021/jp069058b