Co-sensitization effect of N719 dye with Cu doped CdS colloidal nanoparticles for dye sensitized solar cells

Dye-sensitized solar cell’s (DSSC) performances are enhanced by engineering the materials at interface of various device components owing to easy and inexpensive fabrication steps. Ru (II) polypyridyl-based synthetic dyes most widely used photosensitizers for DSSCs due their superior molar extinction coefficient facile interaction with metal oxide electrodes. However, these mostly expensive, as a result, natural metal-free organic have become an alternative way sensitization reduce significant drawbacks dyes. In this study, minimizing usage N719 dye can be performed through method better light-harvesting supreme optical interfacial colloidal Cu-doped CdS co-sensitizer in approach. This co-sensitization signifies (donor), which corroborate energy transfer mechanism (acceptor). The introduction Cu causes extreme tuning broad absorption near-infrared CdS, enhancing light harvesting entrapment followed extensive dye. accelerates activity sensitizers enhancement expects performance DSSC compared traditional sensitization. A massive improvement photocurrent density (?42 %) was observed without sacrificing other photovoltaic parameters, TiO2-based photoanodes. sensitizer’s process, unless excited electron recombination, may indirectly excitation source acceptor minimizes recombination loss.