Abstract
The performance of alloyed CdS0.33Se0.67 quantum dots-sensitized solar cells (QDSSCs) is studied. Fluorine doped Tin Oxide (FTO) substrates were coated with 20nm-diameter TiO2 nanoparticles (NPs). Presynthesized CdS0.33Se0.67 quantum dots (QDs) (radius 3.1 nm) were deposited onto TiO2 nanoparticles (NPs) using direct adsorption (DA) method, by dipping for different times at ambient conditions. The FTO counter electrodes were coated with platinum, while the electrolyte containing I −/I −3 redox species was sand-wiched between the two electrodes. The characteristic parameters of the assembled QDSSCs were measured at different dipping times, under AM 1.5 sun illuminations. The maximum values of short circuit current density (J sc) and conversion efficiency (η) are 1.115 mA/cm2 and 0.25% respectively, corresponding 6h dipping time. Furthermore, the J sc increases linearly with increasing the intensities of the sun light which indicates the linear response of the assembled cells.
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Abdallah, S. The performance of alloyed (CdS0.33Se0.67) quantum dots-sensitized TiO2 solar cell. Semiconductors 48, 1385–1390 (2014). https://doi.org/10.1134/S1063782614100029
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DOI: https://doi.org/10.1134/S1063782614100029