Dye-sensitized nanocrystalline solar cells

Research output: Contribution to journalArticle

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Abstract

The basic physical and chemical principles behind the dye-sensitized nanocrystalline solar cell (DSC: also known as the Gratzel cell after its inventor) are outlined in order to clarify the differences and similarities between the DSC and conventional semiconductor solar cells. The roles of the components of the DSC (wide bandgap oxide, sensitizer dye, redox electrolyte or hole conductor, counter electrode) are examined in order to show how they influence the performance of the system. The routes that can lead to loss of DSC performance are analyzed within a quantitative framework that considers electron transport and interfacial electron transfer processes, and strategies to improve cell performance are discussed. Electron transport and trapping in the mesoporous oxide are discussed, and a novel method to probe the electrochemical potential (quasi Fermi level) of electrons in the DSC is described. The article concludes with an assessment of the prospects for future development of the DSC concept.
Original languageEnglish
Pages (from-to)2630-2642
Number of pages13
JournalPhysical Chemistry Chemical Physics
Volume9
Issue number21
DOIs
Publication statusPublished - 2007

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Oxides
Solar cells
Coloring Agents
solar cells
dyes
Electrons
Fermi level
Electrolytes
Energy gap
electrons
oxides
Semiconductor materials
cells
Electrodes
electron transfer
counters
conductors
trapping
routes
electrolytes

Cite this

Dye-sensitized nanocrystalline solar cells. / Peter, L M.

In: Physical Chemistry Chemical Physics, Vol. 9, No. 21, 2007, p. 2630-2642.

Research output: Contribution to journalArticle

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