Short Circuit Current Improvement of Si HIT Solar Cell by Optimal and “Chess Board” Like 1-D Light Trapping Periodical Grating Structure

We experimentally report that the novel “chess board” like 1-D grating structure with optimal period of 800 nm can dramatically increases the JSC from 33.7 mA/cm2 to 38.9 mA/cm2 compared to the reference solar cell.