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Unpredicted electron injection in CdS/CdSe quantum dot sensitized ZrO2 solar cells
Shlomit Greenwald1, Sven Rühle, Menny Shalom
1Department of Chemistry, Bar Ilan University, Ramat Gan 52900, Israel.
Physical Chemistry Chemical Physics : PCCP
|October 11, 2011
Abstract:
A quantum dot sensitized solar cell based on a porous ZrO(2) film, sensitized with CdSe quantum dots using CdS as an intermediate layer is presented. We observe electron injection from photo-excited quantum dots into the ZrO(2), which is unexpected due to the much higher conduction band edge (closer to the vacuum level) of bulk ZrO(2) compared to TiO(2).
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