Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 1, Issue 7, Pages 1134-1138Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz1002555
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Funding
- Israel Science Foundation
- Spanish MICINN for the Juan de la Cierva and Torres Quevedo [CSD-2007-00007, CTQ2007-60746/BQU]
- European Research Council
- ICIQ
- ICREA
- ICREA Funding Source: Custom
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Here, we present a new DSSC design, consisting of sequential QDs and dye sensitization layers, that opens the path toward high optical density DSSCs that cover a significant part of the solar spectrum. The new configuration is enabled by the application of an amorphous TiO2 layer between the two sensitizers, allowing both electron injection from the outer absorber and fast hole extraction from the inner sensitizing layer. Utilizing two sensitizing layers, we obtain a 250% increase in cell efficiency compared to a QD monolayer cell.
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