  In this work is comprising of simulation results of amorphous Si (a-Si) solar
cell, in which ITO was used as an anti-reflection coating (ARC). The thickness
of ITO was optimized (65 nm) to achieve better performance for spectral region
of 350-800 nm. The reflectivity of the solar cell using ITO and SiNx as an ARC
were compared. The result is found similar. Further to enhance the light
absorption in a-Si, silver nano hemispherical back reflector was used. And it
was found that the average absorption by the a-Si has been improved to ~80% by
using ITO and hemi spherical nano structured back reflector.
