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    Performance analysis of hybrid Quantum Dots Sensitized Solar Cells consisting of CdS/CdX (X = Se, Te, SeTe) QD and Bromophenol Blue dye
    (Elsevier B.V., 2021) Elibol, E.; Demirci, T.
    In this study, the effects of hybrid associate consisting of CdX (X = Te, Se, SeTe) Quantum Dots (QD) and Bromophenol Blue (BPB) organic dye on hybrid Quantum Dots Sensitized Solar Cells (QDSSCs) design were investigated. In the study QDs were synthesized in the 604–623 nm emission range in order to be compatible with the absorbance range of the BPB, and mercaptopropionic acid (MPA) was used as the surface ligand in every QDs. Fluorescence measurements were made to detect the acceptor-donor and understand the energy transfer mechanism in the QD:BPB associate. It was observed that the quenching amount of QDs in the QD: BPB hybrid associate varied according to the QD type used, and the highest emission quenching was observed in the CdSeTe: BPB associate. In order to suppress charge recombination in designed QD:BPB hybrid QDSSCs, CdS QDs were coated on TiO2 surface with SILAR method and ZnS layer was coated to passivize the photoactive surface. In the study, it was determined that the QD:BPB hybrid associate increased the power conversation efficiency (PCE) of QDSCC among all three QDs tested, and this increase was found to be in the range of 9–12.5%. As a result, Jsc for TiO2/CdS/CdSeTe/BPB/ZnS QDSSCs was measured as 10.3 mA/cm2, Voc was 0.791 V, and it was calculated that PCE increased to 4.78 ± 0.1%. © 2021 Elsevier B.V.