Optics and Photonics Society of Iran

In this paper, a thin film silicon solar cell with anti-reflection coating on front surface and combination of periodic grating and photonic crystal on its back surface has been considered. The thickness and number of anti-reflection coating, as well as the geometric and physical parameters of photonic crystal and grating are optimized to increase the optical absorption of solar cell. The simulations have been performed using the finite difference time domain method with Lumercial software. The results show that optical absorption of solar cell has been increased significantly using the anti-reflection coating, photonic crystal and grating.