This thesis investigates the structural, electrical, and optical properties of Zinc Tin Oxide (ZTO, Zn2SnO4)/Ag/ZTO (ZAZ) and Indium Tin Oxide (ITO, In2O3:SnO2) thin films on flexible substrates, both before and after bending cycles. The comparison between ITO and ZAZ thin films arises from the decreasing availability and high processing costs of indium. Researchers have sought alternatives, leading to the development of a ZTO-based sandwich structure that includes a silver intermediate layer, which exhibits properties similar to ITO in transparent conducting oxide (TCO) applications requiring high conductivity and transparency. Experimental studies determined optimal parameters for thin films prepared via magnetron sputtering. After substrate preparation and growth processes, samples were characterized. Structural characterization utilized adhesion tests, profilometry, and Scanning Electron Microscopy (SEM). Electrical characterization employed both 2-probe and 4-probe methods, while optical characterization was performed using a spectrophotometer. The study concluded that the ZAZ multilayer structure outperformed ITO coatings, suggesting ZAZ as a viable alternative to ITO due to indium's limited availability. This research not only highlights the potential of ZAZ thin films as substitutes for ITO but also serves as a guide for future applications in flexible wearable technologies.