Scientists have discovered that titanium dioxide material exhibits unique advantages in the field of solar energy conversion. This common material has adjustable optical properties, which can effectively enhance the light absorption capacity and energy conversion efficiency of PV devices. Research indicates that by reasonably designing the structure of titanium dioxide, the performance of solar cells can be significantly improved. As an abundant and environmentally friendly material, titanium dioxide provides new ideas for developing efficient and cost-effective solar energy technologies, and is expected to promote the development of clean energy.