CdS quantum dots (QDs) were self-assembled onto a mesoscopic TiO2 film and used as a seed layer to induce the nucleation and growth of CdSe in the followed CBD process. The SAM-CdS-QD-layer contributes a TiO2/CdSe interface with superior ability in inhibiting the charge recombination. After improvement by a surface passivation ZnS layer, an energy conversion efficiency of 2.9% was achieved.
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Lee et al. (2008) studied this question.
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