Light trapping and optical absorption enhancement in vertical semiconductor Si/SiO2 nanowire arrays
Wang Ying1, Li Xin-Hua2, 3, †
       

(color online) Ultimate photocurrent of the Si/SiO2 NWA as a function of SiO2 coating thickness. Dashed line indicates the ultimate photocurrent for Si NWA fully filled with SiO2.