Absorption enhancement of ultrathin crystalline silicon solar cells with frequency upconversion nanosphere arrays
Chenbo Wang,Shuai Zhao,Fei Bian,Daxue Du,Chunsheng Wang,Zhaopeng Xu
Figure 5. Contour map of average optical absorption when the α-NaEr0.2Y0.8F4 NSs diameter changes from 20 nm to 100 nm and ratio changes from 1 to 8.