ix ABSTRACT Dye Sensitized Solar Cells (DSSC) is one type of alternative solar cells to produce a low cost solar cells with high efficiency. The modifications were carried out in this research by adding Silica (SiO2) with variations in size (nano silica and micro silica) to the active material of ZnO and various precursors (Zinc Acetate Dihydrate and Zinc Nitrate Hexahydrate). The method used…