Chemical bath deposited CdS/CdSe-sensitized porous TiO2 solar cells

Olivia Niitsoo, Shaibal K. Sarkar, Christophe Pejoux, Sven Rühle, David Cahen, Gary Hodes

Research output: Contribution to journalArticlepeer-review

367 Scopus citations

Abstract

CdSe is homogeneously deposited into nanoporous TiO2 films and used in liquid junction photoelectrochemical solar cells. The effect of the deposition parameters on the cell are studied, in particular differences between ion-by-ion and cluster deposition mechanisms. CdSe deposition on a Cd-rich CdS film that was deposited first into the TiO2 film, or selenization of the Cd-rich CdS layer with selenosulphate solution improves the cell parameters. Photocurrent spectral response measurements indicate photocurrent losses due to poor collection efficiencies, as shown by the strong spectral dependence on illumination intensity. Cell efficiencies up to 2.8% under solar conditions have been obtained.

Original languageEnglish
Pages (from-to)306-313
Number of pages8
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume181
Issue number2-3
DOIs
StatePublished - 31 Jul 2006
Externally publishedYes

Funding

We thank Frank Lenzmann (ECN) for the TiO 2 paste and Hagai Cohen (WIS) for the XPS measurements. This research was supported in part by the Israel Science Foundation, the G.M.J. Schmidt Minerva Center for Supramolecular Chemistry and the PHOREMOST Network of Excellence. DC holds the Schaefer Chair in Energy Research.

FundersFunder number
Israel Science Foundation

    Keywords

    • CdS
    • CdSe
    • Chemical bath deposition
    • Nanoporous solar cell
    • TiO

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