My Ph.D. project entitled as Zn2SnO4 as an alternate photoanode for Dye-Sensitized Solar Cells & Bi2S3 quantum dot synthesis sensitized solar cells is aimed to find an alternative and efficient photoanode for DSSC application . For obtaining such characteristics, here we proposed Zn2SnO4 a ternary oxide semiconductor, synthesized by simple hydrothermal method, with controllable size and surface properties as efficient alternative photoanodes. Zn2SnO4 has many advantages since its properties can be fine-tuned, low-cost, and stable in the redox electrolyte. In this work Zn2SnO4 with different surface properties are studied and its influence on photovoltaic property with various surface tr...