Light trapping characteristics of glass substrate with hemisphere pit arrays in thin film Si solar cells*
Chen Lea),b), Wang Qing-Kanga)†, Wangyang Pei-Huaa), Huang Kuna), Shen Xiang-Qiana)
       
Reflectivities of light among the layers of air, glass, and silicon. The left side is a planar glass substrate, and the right is an HP glass substrate.