Ti1-xFexO2-δ nanoparticles (NPs) with varying content of Fe (III) ions (x = 0.008 to 0.024 and δ =0.5x) were synthesized using sol-gel method at room temperature, and thereafter these NPs have been connected to CdS quantum dots followed by sensitization with N719 moieties for photovoltaic measurements. After the characterization, the powder form of Ti1-xFexO2-δ was mixed thoroughly with DMF solvent followed by CH3CN solvent using ultrasonicator, and then the binder-free paste was coated on transparent conductive oxide F:SnO2 (FTO) glass substrate using doctor blade technique to obtain uniform photoelectrode. After calcination, these different photoelectrodes were subsequently sensitized with either CdS QDs or N719 dye or both. Moreover, the photovoltaic performance of these prepared photoanodes was studied for the different compositions of Ti1-xFexO2-δ when it co-sensitized with CdS QDs and N719 dye. The solar device were designed through Ru-based N719 dye anchored onto Ti1-xFexO2-δ-CdS QDs photoanodes and counter electrode (Pt) as well as electrolyte (I-/I3-) and tested using solar simulator under standard light condition (100 mW/cm2). The overall conversion efficiency of DSSCs is 3.48% for Ti0.992Fe0.008O1.996:CdS:N719 dye; which is 1.5 times more than undoped TiO2 NPs. [ABSTRACT FROM AUTHOR]