Dye-sensitized solar cells, (DSSC) based on nanocrystalline inorganic oxides such as TiO₂, ZnO and SnO₂, are a relatively new class of low-cost solar cells. They are based on a semiconductor formed between a photo-sensitized anode and an electrolyte. A photo electrochemical system (PECs) extract electrical energy from light, including visible light. Dye-sensitized solar cells are extremely promising and currently attracting widespread interest for the conversion of sunlight into electricity because of their low cost and high efficiency and do not need elaborate apparatus to manufacture. For this purpose, nanopowders of metal oxides will be synthesized by sol-gel method and cell is made by chemically cross-linked gel method. Powder characterization will be done using TG-DTA, XRD, SEM, TEM, AFM, and cylic-voltammetry. The purity and structure of the dyes will be confirmed by elemental analysis, UV, FT-IR spectrum and NMR analysis. The incident photon-to-current conversion efficiency (IPCE) will also be evaluated using a commercial setup for IPCE measurement under monochromatic light illumination.