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)
       
Variations of surface reflectivity with the wavelength of planar glass and HP glass. The relation between the refractive index of BK7 optical glass and the wavlength of incident light is shown in the inset.