Solar cell performance is often reduced by surface fogging and dirt accumulation, which decreases light transmission and energy output. This study addresses these issues by fabricating titanium dioxide (TiO2) thin films doped with tin dioxide (SnO2) to enhance antifogging and self-cleaning properties specifically for solar cell applications. These challenges are critical to improving solar cells’ efficiency. Using advanced methods such as Powder Physical Vapor Deposition (PPVD) and anodization, TiO2:SnO2 nanostructure coatings were developed to optimize transparency and prevent contamination buildup. The experimental results show that doping TiO2 with 1.0% SnO2 significantly enhances hydrophilicity (by 52.64%), allowing water to spread rapidly across the surface and prevent fog formation (defog in 5.19 s). Furthermore, the self-cleaning properties of these coatings ensure easy removal of dirt and contaminants, maintaining high solar cell efficiency and reducing maintenance frequency and costs. These findings offer a practical solution to increase solar cell efficiency while minimizing maintenance costs, contributing to more sustainable and effective solar energy technologies. Additionally, this research opens potential applications for these coatings in other optical devices that require antifogging and self-cleaning functionalities.