IMPROVING THE PERFORMANCE EFFICIENCY OF THE QUANTUM DOTS SOLAR CELLS BY THE ANNEALING TREATMENT

In this works, we have prepared the quantum dots solar cells (QDSSCs) based on the TiO2/CdS/CdSe/ZnS photoanodes with the annealing temperatures for the reduced recombination and the increased performance efficiency in the QDSSCs. The results indicate that the highest performance efficiency obtained correspond to the photoanodes at 300°C. In addition, we also investigated the effect of the ZnS passivation coated on the recombination resistance, the chemical capacitance of the performance QDSSCs through the electrochemical impedence spectroscopy (EIS).